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Thailand Meteorological Department
Weather Summaries and Seasonal Forecast

Updated: 2200 Thursday 19 October 2017 Thailand GMT+7

2017 TMD Reports for Thailand in pdf format

2017 Annual Report in English

2017/2560 Annual Report in Thai

January 2017

February 2017

March 2017

April 2017

May 2017

June 2017

July 2017

August 2017

September 2017

October 2017

November 2017

December 2017

2017 Forecasts in pdf format

Winter 2017-2018 Forecast Revised (English) Winter 2017-2018 Forecast $Revised (Thai)
Winter 2017-2018 Forecast (English) Winter 2017-2018 Forecast (Thai)
Rainy Season Forecast 2017 Revised (English) Rainy Season Forecast 2017 Revised (Thai)
Rainy Season Forecast 2017 Revised (English) Rainy Season Forecast 2017 Revised (Thai)
Rainy Season Forecast 2017 Revised (English) Rainy Season Forecast 2017 Revised (Thai)
Rainy Season Forecast 2017 (English) Rainy Season Forecast 2017 (Thai)
Summer Forecast 2017 Update(English) Summer Forecast 2017 Update(Thai)
Summer Forecast 2017 Update(English) Summer Forecast 2017 Update(Thai)
Summer Forecast 2017 (English) Summer Forecast 2017 (Thai)

 

2016 TMD Reports for Thailand in pdf format

2016 Annual Report in English

2016/2559 Annual Report in Thai

January 2016

February 2016

March 2016

April 2016

May 2016

June 2016

July 2016

August 2016

September 2016

October 2016

November 2016

December 2016

 

2016 Forecasts in pdf format

Summer Forecast 2017 (English) Summer Forecast 2017 (Thai)
Winter Forecast 2016 Rev 1b (English) Winter Forecast 2016 Rev 1b (Thai)
Winter Forecast 2016 Rev 1a (English) Winter Forecast 2016 Rev 1a (Thai)
Winter Forecast 2016 Rev 1 (English) Winter Forecast 2016 Rev 1 (Thai)
Winter Forecast 2016 (English) Winter Forecast 2016 (Thai)
Rainy Season 2016(Rev 4) (English)

Rainy Season 2016 (Rev 4) (Thai)

Rainy Season 2016(Rev 3) (English)

Rainy Season 2016 (Rev 3) (Thai)

Rainy Season 2016(Rev 2) (English)

Rainy Season 2016 (Rev 2) (Thai)

Rainy Season 2016(Rev 1) (English)

Rainy Season 2016 (Rev 1) (Thai)

Rainy Season 2016 (English) Rainy Season 2016 (Thai)
Summer Forecast 2016 (Rev 1)English Summer Forecast 2016 (Rev 1)Thai
Three Month Forecast (February 2016 - April 2016) English Three Month Forecast (February 2016 - April 2016) Thai
Summer Forecast 2016 English Summer Forecast 2016 Thai
Three Month Forecast (January 2016 - March 2016) English Three Month Forecast (January 2016 - March 2016) Thai

Three-Month Climate Characteristic Expectations of Thailand

October 2017 - December 2017
September 2017 - November 2017
June 2017 - August 2017
May 2017 - July 2017
April 2017 - June 2017
March 2017 - May 2017
February 2017 - April 2017
January 2017 - March 2017
During July - September 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During the next three months (July-August-September), the total rains of the northern, central and northeastern parts are to be 5-10% above normal. While the total rains of the eastern part is to be near normal.

Furthermore, mean temperature is 0.5 - 1 C. above normal for almost all over Thailand.

For early July, almost all over Thailand will meet below-normal rain since the dry spell occurs. The total rains in July of the northern and central parts of Thailand are to be below normal. However, the total rains of the northeastern and eastern parts of Thailand are to be above normal.

Then in August, the northern part and the western portion of the northeastern part of Thailand will meet above-normal rain. On the other hand, the central and eastern parts, and the eastern portion of the northeastern part of Thailand will meet below-normal rain.

Afterward in September, the total rain of the Upper Thailand will be above normal.

Southern Thailand

During the next three months (July-August-September), the total rains of the Southern Thailand (East Coast) are to be near normal whereas that of the Southern Thailand (West Coast) is to be 10% below normal.

Furthermore, mean temperature is 0.5 - 1 C. above normal for almost all over Thailand.

For early July, almost all over Thailand will meet below-normal rain since the dry spell occurs. The total rains in July of the lower portion of the Southern Thailand are to be below normal. However, the total rains of the upper portion of the Southern Thailand are to be above normal.

Then in August, the lower portion of the Southern Thailand will meet above-normal rain. On the other hand, the upper portion of the Southern Thailand will meet below-normal rain.

Afterward in September, the Southern Thailand will meet below-normal rain.


Cautions
During June and July, tropical cyclones often develop at the Northwestern Pacific and move pass the Philippines toward the South China Sea. Therefore, the southwestern monsoon prevailing over Thailand and the Gulf of Thailand becomes more active influencing Thailand to meet more rain, specifically around the coastal areas of the eastern part and the Southern Thailand (west coast). In August, tropical cyclones often develop at the Northwestern Pacific or the South China Sea. Chances are high that they will move closer toward the Upper Thailand causing Thailand to meet dense rainfall with heavy to very heavy rain at many areas. Consequently, overflowing flash or forest flood will inundate at many areas. Thus, the public should follow up the weather forecast news and warnings about tropical cyclones from the Thai Meteorological Department further.
Remark:
- Normal means average during the 30-year period (A.D. 1981 - 2010 or B.E. 2524 - 2553)
- These long range climate expectations are created by applying some climate models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of June 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  July August September
Northern
(Rainfall/Rainy days)
Near Normal
(130 - 210 / 18 - 20)
Slightly Above Normal
(190 - 280 / 20 - 22)
Above Normal
(210 - 280 / 17 - 21)
Northeastern
(Rainfall/Rainy days)
Above Normal
(210 - 320 / 15 - 19)
Slightly Below Normal
(200 - 300 / 18 - 21)
Above Normal
(240 - 330 / 17 - 21)
Central
(Rainfall/Rainy days)
Near Normal
(110 - 190 / 15 - 17)
Slightly Above Normal
(130 - 210 / 17 - 19)
Above Normal
(260 - 340 / 18 - 21)
Eastern
(Rainfall/Rainy days)
Above Normal
(260 - 390 / 15 - 19)
Below Normal
(190 - 310 / 16 - 19)
Slightly Above Normal
(290 - 400 / 20 - 22)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(90 - 160 / 13 - 16)
Slightly Above Normal
(100 - 170 / 14 - 17)
Slightly Below Normal
(110 - 170 / 15 - 17)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(220 - 390 / 18 - 21)
Slightly Below Normal
(310 - 460 / 18 - 21)
Below Normal
(250 - 380 / 20 - 22)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(130 - 210 / 15 - 18)
Slightly Above Normal
(160 - 270 / 18 - 20)
Slightly Above Normal
(320 - 390 / 20 - 22)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  July August September
Northern
Average max/min Temp.
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 23 - 25
Slightly Above Normal
32 - 34 / 24 - 26
Northeastern
Average max/min Temp.
Near Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 24 - 26
Central
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Eastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 24 - 26
Southern (East Coast)
Average max/min Temp.
Near Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
31 - 33 / 24 - 26
Slightly Above Normal
31 - 33 / 24 - 26
Slightly Above Normal
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Issued Date June 29, 2017
During June - August 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During the next three months, the total rain is expected to be near normal for all parts of Upper Thailand whereas mean temperature is slightly above normal, mean maximum and mean minimum temperatures are slightly above normal for almost all of this period.
During late June until early July, the amount and distribution of rain will lessen. Thus, the dry spell will occur causing water shortage for agriculture at many areas.
Besides, in August, rain in Thailand will increase, especially at the northern, northeastern and eastern parts. As a result, flash flood may inundate at many areas.

During early and middle June, abundant rain appears with heavy to very heavy rain at many areas on some days, specifically at the northern and eastern parts. For wind waves around the upper portion of the Gulf of Thailand, they will be active as 2 3 meters high at some periods. The reason is that the southwestern monsoon prevailing over the Andaman Sea, Thailand and the Gulf of Thailand is rather active periodically and continuously. Additionally, a monsoon trough will place over the Upper Thailand at some periods.
Then during late June until early July, the amount and distribution of rain will reduce due to the prevailing southwestern monsoon over the Andaman Sea, Thailand and the Gulf of Thailand weakening.
During middle July until August, the amount and distribution of rain will become to increase. The reason is that the prevailing southwestern monsoon over the Andaman Sea, Thailand and the Gulf of Thailand becomes more active continuously. Furthermore, the monsoon trough will place over the Upper Thailand at some periods.

Southern Thailand

During the next three months, the total rain is expected to be near normal, whereas mean temperature is slightly above normal. Also, mean maximum and mean minimum temperatures are slightly above normal for almost all of this period.
Besides, in August, rain in Thailand will increase, especially west coast. As a result, flash and forest flood may inundate at many areas.

During the early and middle June, the Southern Thailand (specifically, the west coast) still meets abundant rain with heavy to very heavy rain at some areas. For wind waves in the Andaman Sea, they will still be active as 2 3 meters high while those in the Gulf of Thailand are 1 2 meters high. The reason is that the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand is active periodically.
Afterward, during late June till early July, the amount and distribution of rain will lessen because the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand weakens.
Then during middle July until August, the amount and distribution of rain will become to increase again since the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand becomes to be more active continuously.

Cautions
During June and July, tropical cyclones often develop at the Northwestern Pacific and move pass the Philippines toward the South China Sea. Therefore, the southwestern monsoon prevailing over Thailand and the Gulf of Thailand becomes more active influencing Thailand to meet more rain, specifically around the coastal areas of the eastern part and the Southern Thailand (west coast).
In August, tropical cyclones often develop at the Northwestern Pacific or the South China Sea. Chances are high that they will move closer toward the Upper Thailand causing Thailand to meet dense rainfall with heavy to very heavy rain at many areas. Consequently, overflowing flash or forest flood will inundate at many areas. Thus, the public should follow up the weather forecast news and warnings about tropical cyclones from the Thai Meteorological Department further.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of June 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  June July August
Northern
(Rainfall/Rainy days)
Near Normal
(140 - 180 / 16 - 19)
Near Normal
(160 - 200 / 18 - 21)
Near Normal
(200 - 250 / 20 - 23)
Northeastern
(Rainfall/Rainy days)
Near Normal
(180 - 230 / 15 - 18)
Near Normal
(190 - 230 / 16 - 19)
Near Normal
(240 - 290 / 18 - 21)
Central
(Rainfall/Rainy days)
Near Normal
(130 - 170 / 14 - 17)
Near Normal
(140 - 180 / 15 - 18)
Near Normal
(160 - 200 / 16 - 19)
Eastern
(Rainfall/Rainy days)
Near Normal
(240 - 290 / 15 - 18)
Near Normal
(250 - 300 / 16 - 19)
Near Normal
(280 - 330 / 17 - 20)
Southern (East Coast)
(Rainfall/Rainy days)
Near Normal
(90 - 130 / 11 - 14)
Near Normal
(100 - 140 / 13 - 16)
Near Normal
(110 - 150 / 14 - 16)
Southern (West Coast)
(Rainfall/Rainy days)
Near Normal
(290 - 340 / 18 - 21)
Near Normal
(310 - 410 / 19 - 22)
Near Normal
(350 - 450 / 19 - 22)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(140 - 180 / 15 - 18)
Near Normal
(160 - 200 / 15 - 18)
Near Normal
(190 - 230 / 17 - 20)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  June July August
Northern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
31 - 33 / 23 - 25
Northeastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Central
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Eastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
31 - 33 / 24 - 26
Slightly Above Normal
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 26 - 28
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Issued Date May 29, 2017
During May - July 2017
General Climate Characteristics

Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

 

Overview Prediction:
During the next 3 months, most total rain will be near normal except in May. Whereas that of the central and eastern parts and the Southern Thailand will be slightly above normal while more rain will firstly appear at the Southern Thailand since early May. Then, more rain will happen at the whole country from middle May onward. Since late June until early July, the amount and distribution of rain will lessen. For the mean temperature of Thailand, mean maximum and mean minimum temperature will be slightly above normal for the whole period.
Furthermore, during the first half of May, unstable weather occurs at the Upper Thailand as summer thunderstorms happening at many areas. Thus, property damages and loss of lives may occur. The public then should be cautious and prepare for the summer thunderstorms further.

Details are as the following:
During the first half of May, unstable weather occurs while sweltering weather appears commonly with very hot weather at some areas on some days. Except at some periods, thunder rain occurs at many areas because southerly or southeasterly wind prevails over the Upper Thailand for almost all of this period.
Afterward, during middle May until late June, the amount and distribution of rain will increase with heavy to very heavy rain at some areas on some days, specifically at the central and eastern parts. While wind waves at the upper portion of the Gulf of Thailand will become more active as 2 - 3 meters high at some periods because the prevailing southerly or southeasterly wind transforms as southwestern monsoon prevailing over the Andaman Sea, Thailand and the Gulf of Thailand. They will be active periodically together with a monsoon trough places over the Upper Thailand at some periods.
During late June until early July, the amount and distribution of rain will reduce for the prevailing southwestern monsoon over the Andaman Sea, Thailand and the Gulf of Thailand weakens.
During middle and late July, the amount and distribution of rain will increase again due to the prevailing southwestern monsoon over the Andaman Sea, Thailand and the Gulf of Thailand becoming more active. Also, the monsoon trough will move downward to place over the Upper Thailand at some periods.

Southern Thailand

Overview Prediction:
During the next 3 months, most total rain will be near normal except in May. Whereas that of the Southern Thailand will be slightly above normal while more rain will firstly appear at the Southern Thailand since early May.

Details are as the following:
During May until late June, increasing rain occurs at the western coast with heavy to very heavy rain at some areas. Whereas wind waves in the Andaman Sea will become more active as 2 - 3 meters high while those in the Gulf of Thailand are 1 - 2 meters high. These result from the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand becoming active periodically.
Then during late June till early July, the amount and distribution of rain will lessen since the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand weakens.
Later during middle and late July, more rain will appear again due to the prevailing southwestern monsoon over the Andaman Sea and the Southern Thailand becoming more active.

Cautions
May Some low-pressure air mass cells may develop around the Andaman Sea and may strengthen to become depressions, tropical storms or cyclones. They may move toward the western side of Thailand. As a result, more rain will occur at the western portion of both of the northern and central parts including with the Southern Thailand. June and July Some tropical cyclones often develop at the Northwestern Pacific and move pass the Philippines toward the South China Sea. Consequently, the prevailing southwestern monsoon over Thailand and the Gulf of Thailand will become more active influencing more rain to occur in Thailand, especially around the eastern and western coasts. Specifically, during late June until early July The Dry spell period often occurs. In other words, the amount and distribution of rain will greatly reduce. Thus, water shortage for agriculture happens at many areas, especially at the drought repeated areas outside irrigation zones.
Remark:
- Normal means average during the 30-year period (A.D. 1981 - 2010 or B.E. 2524 - 2553)
- These long range climate expectations are created by applying some climate models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of May 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  May June July
Northern
(Rainfall/Rainy days)
Near Normal
(160 - 200 / 14 - 17)
Slightly Above Normal
(140 - 180 / 16 - 19)
Near Normal
(160 - 200 / 18 - 21)
Northeastern
(Rainfall/Rainy days)
Near Normal
(170 - 210 / 14 - 17)
Near Normal
(180 - 230 / 15 - 18)
Near Normal
(190 - 230 / 16 - 19)
Central
(Rainfall/Rainy days)
Slightly Above Normal
(170 - 210 / 14 - 17)
Near Normal
(130 - 170 / 14 - 17)
Near Normal
(140 - 180 / 15 - 18)
Eastern
(Rainfall/Rainy days)
Slightly Above Normal
(220 - 270 / 14 - 17)
Near Normal
(240 - 290 / 15 - 18)
Near Normal
(250 - 300 / 16 - 19)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(120 - 160 / 13 - 16)
Near Normal
(90 - 130 / 12 - 15)
Near Normal
(100 - 140 / 13 - 16)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(300 - 400 / 19 - 22)
Near Normal
(290 - 340 / 18 - 21)
Near Normal
(310 - 410 / 19 - 22)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(220 - 270 / 15 - 18)
Near Normal
(140 - 180 / 15 - 18)
Slightly Above Normal
(160 - 200 / 15 - 18)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  May June July
Northern
Average max/min Temp.
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Northeastern
Average max/min Temp.
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 24 - 26
Central
Average max/min Temp.
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Eastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 26 - 28
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
33 - 35 / 26 - 28
Near Normal
33 - 35 / 25 - 27
Issued Date May 1, 2017
During April - June 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

Overview Prediction:
During the next three months, mean maximum temperature of the Upper Thailand is expected to be slightly above normal almost all of this period. Specifically, April is the hottest month as the extreme maximum temperature may reach 42 43 C. Moreover, mean maximum temperature around northern and central parts is about 37 39 C. while that of northeastern part is about 36 38 C. However, mean maximum temperature of eastern part is about 34 36 C.
For rain amount in April, the total rain is mostly slightly above normal. Afterward, the total rain is near normal.
Furthermore, during April until middle May, summer thunderstorms often develop at many areas, especially around the Upper Thailand. In other words, thunder rain, gusty wind and hail often occur at many areas. These events possibly cause loss of life and property damages. As a result, the public should prepare for these summer thunderstorms further.

Details are as the following:
During April until middle May, sweltering weather happens commonly with very hot weather at some areas on some days. Extreme maximum temperature may reach 42 43 C. Otherwise, thunder rain occurs at many areas during some periods helping reduce some heat together with southerly or southeasterly wind still prevails over the Upper Thailand almost all of this period. In addition, some heat low-pressure air mass cells will develop at the Upper Thailand at some periods.
Then during middle May until late June, the amount and distribution of rain will increase with heavy to very heavy rain at some areas on some days, specifically at the western portion of the northern, central and eastern parts. For wind waves at the upper portion of the Gulf of Thailand, they will be more active as 2 3 meters high at some periods. These result from the southerly or southeasterly wind prevailing over the Upper Thailand transforms to become southwestern monsoon prevailing over the Andaman Sea, Thailand and the Gulf of Thailand. Additionally, a monsoon trough may place over the Upper Thailand at some periods.
During late June, the amount and distribution of rain will lessen because the southwestern monsoon prevailing over the Andaman Sea, Thailand and the Gulf of Thailand weakens.

Southern Thailand

Overview Prediction:
During the next three months, mean maximum temperature of the Southern Thailand is expected to be slightly above normal almost all of this period. Specifically, April is the hottest month. Moreover, mean maximum temperature around 34 36 C.
For rain amount in April, the total rain is mostly slightly above normal. Afterward, the total rain is near normal. Firstly, rain will occur at the Southern Thailand during late April.

Details are as the following:
During the beginning and middle of April, rainfall distribution is still 20 30% of Thailand together with hot weather appears at some areas on some days. For wind waves at the Gulf of Thailand and the Andaman Sea, they are about 1 meter high due to the easterly or southeasterly wind prevailing over the Gulf of Thailand and the Southern Thailand almost all of this period.
Later, during late April till late June, increasing rain occurs at the Southern Thailand, especially at the western coast along with heavy to very heavy rain at some areas. Also, wind waves at the Andaman Sea will become more active as 2 3 meters high whereas those at the Gulf of Thailand are approximately 1 meter high. These result from the easterly or southeasterly wind prevailing over the Gulf of Thailand and the Southern Thailand transforms to become the southwestern monsoon prevailing over the Andaman Sea and the Southern Thailand.
During late June, the amount and distribution of rain will reduce because of the weakening southwest monsoon prevailing over the Andaman Sea and the Southern Thailand.

Cautions
In April, summer thunderstorms often happen as thunder rain, gusty wind and sometimes hail at some areas possibly causing property and crop damages. During late April and May, low-pressure air mass cells may develop at the Andaman Sea and strengthen to become depressions, tropical storms or cyclones. They may move nearer toward the western portion of Thailand influencing the western portions of the northern and central parts including with the Southern Thailand to face up with more rain. In June, tropical cyclones often develop at the western portion of the Northwestern Pacific and may move pass the Philippines toward the South China Sea influencing the southwestern monsoon prevailing over Thailand and the Gulf of Thailand to become more active. Consequently, more rain occurs in Thailand, specifically at the coastal area of the eastern part and the western coast of the Southern Thailand. The public then should follow up the weather forecast news from the Thai Meteorological Department closely.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range climate expectations are created by applying some climate models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of April 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow up monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  April May June
Northern
(Rainfall/Rainy days)
Slightly Above Normal
(70 - 100 / 7 - 10)
Near Normal
(160 - 200 / 14 - 17)
Near Normal
(140 - 180 / 15 - 18)
Northeastern
(Rainfall/Rainy days)
Slightly Above Normal
(80 - 110 / 8 - 11)
Near Normal
(170 - 220 / 14 - 17)
Near Normal
(180 - 230 / 14 - 17)
Central
(Rainfall/Rainy days)
Slightly Above Normal
(80 - 110 / 7 - 10)
Near Normal
(150 - 190 / 13 - 16)
Near Normal
(130 - 170 / 14 - 17)
Eastern
(Rainfall/Rainy days)
Slightly Above Normal
(100 - 140 / 8 - 11)
Near Normal
(200 - 250 / 14 - 17)
Near Normal
(240 - 290 / 15 - 18)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(70 - 100 / 7 - 10)
Near Normal
(120 - 160 / 13 - 16)
Near Normal
(90 - 130 / 12 - 15)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(160 - 200 / 12 - 14)
Near Normal
(280 - 330 / 18 - 21)
Near Normal
(280 - 330 / 17 - 20)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Above Normal
(90 - 120 / 6 - 8)
Near Normal
(220 - 270 / 15 - 18)
Near Normal
(140 - 180 / 15 - 18)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  April May June
Northern
Average max/min Temp.
Slightly Above Normal
37 - 39 / 24 - 26
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Northeastern
Average max/min Temp.
Slightly Above Normal
36 - 38 / 25 - 27
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Central
Average max/min Temp.
Slightly Above Normal
37 - 39 / 26 - 28
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 25 - 27
Eastern
Average max/min Temp.
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
33 - 35 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
33 - 35 / 26 - 28
Issued Date March 29, 2017
During March - May 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

Overview Prediction:
During the next three months, mean maximum temperature is expected to be slightly above normal while April is the hottest month as extreme maximum temperature reaching 42 43 C. on some days. Whereas mean maximum temperature are about 37 39 C. at northern and central parts along with that of northeastern part is about 36 38 C. However, eastern part and the Southern Thailand is not so sweltering.
Most total rain will be slightly above normal. Together with summer thunderstorms often occur at many areas as thunder rain, gusty wind and hail at many areas, especially during March and April. These phenomena may cause property damages and loss of life. Nevertheless, rainfall will not be sufficient for usage at some areas, specifically at repeated drought areas outside irrigation zones. As a result, the public should effectively optimize water usage and prepare for the summer thunderstorms.

Details are as the following:
During the first half of March, warmer weather occurs with hot weather at many areas on some days while dense fog appears at many areas on some days with rainfall at some areas on some days. Furthermore, the northern and northeastern parts are still cool in the morning, especially at the upper portion. This results from weakly high-pressure air mass areas from China still prevailing over the upper portion of Thailand at some periods. Also, southerly or southeasterly wind prevails over the Upper Thailand commonly.
Then during middle March until April, sweltering weather occurs commonly with very hot weather at some areas on some days. Extreme maximum temperature may reach 42 43 C. but thunder rain occurs at many areas at some periods, thus helping reduce some heat. This results from the southerly or southeasterly wind still prevailing over the Upper Thailand commonly along with heat low-pressure air mass cells covering the Upper Thailand at some periods.
During the first half of May, weather will be unstable as thunder rain occurring at many areas and also sweltering weather happening commonly. Afterwards, more rainfall appears, specifically at the western portion of the northern, central and eastern parts. For wind waves at the upper portion of the Gulf of Thailand, they will be more active as 2 3 meters high. This results from the prevailing wind as the southern or southeastern wind over the Upper Thailand transforming to become the southwestern monsoon prevailing over the Andaman Sea, Thailand and the Gulf of Thailand.
Besides, at the second half of May, a monsoon trough places over the central and eastern parts at some periods.

Southern Thailand

Overview Prediction:
Since March until about late April, rainfall distribution occurs at 20 30% of the area with hot weather at some areas on some days. For wind waves at both of the Gulf of Thailand and the Andaman Sea, they will be about 1 meter high due to the easterly or southeasterly wind prevailing over the Gulf of Thailand and the Southern Thailand commonly.
Then during late April until May, more rainfall occurs at the Southern Thailand with heavy to very heavy rain at some areas, especially at the western portion. For wind waves at the Andaman Sea, they will be more active as 2 3 meters high while those at the Gulf of Thailand are about 1 meter high. This results from the easterly or southeasterly wind prevailing over the Gulf of Thailand and the Southern Thailand transforming to become the southwestern monsoon prevailing over the Andaman Sea and the Southern Thailand instead.

Cautions
During March and April, summer thunderstorms often occur as thunder rain, gusty wind and hail at some areas possibly causing property damages and loss of life. During late April, low-pressure air mass cells often develop in the Andaman Sea and may strengthen to become depressions, tropical storms and cyclones further. Their movements are northerly toward easterly and may reach the western side of Thailand. Therefore, more rainfall will occur at the western portion at both of the northern and central parts including with the Southern Thailand. The public then should follow up the weather forecast news from the Thai Meteorological Department closely further.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range climate expectations are created by applying some climate models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of March 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow up monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  March April May
Northern
(Rainfall/Rainy days)
Slightly Above Normal
(30 - 50 / 3 - 4)
Slightly Above Normal
(70 - 100 / 7 - 10)
Near Normal
(160 - 200 / 14 - 17)
Northeastern
(Rainfall/Rainy days)
Slightly Above Normal
(40 - 60 / 4 - 6)
Slightly Above Normal
(80 - 110 / 8 - 11)
Near Normal
(170 - 220 / 14 - 17)
Central
(Rainfall/Rainy days)
Slightly Above Normal
(40 - 60 / 4 - 6)
Slightly Above Normal
(80 - 110 / 7 - 10)
Near Normal
(150 - 190 / 13 - 16)
Eastern
(Rainfall/Rainy days)
Slightly Above Normal
(60 - 90 / 5 - 7)
Slightly Above Normal
(100 - 140 / 8 - 11)
Near Normal
(200 - 250 / 14 - 17)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(70 - 100 / 5 - 7)
Slightly Above Normal
(70 - 100 / 7 - 10)
Near Normal
(120 - 160 / 13 - 16)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(90 - 120 / 7 - 9)
Slightly Above Normal
(160 - 200 / 12 - 14)
Near Normal
(180 - 330 / 18 - 21)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Above Normal
(40 - 60 / 4 - 6)
Slightly Above Normal
(90 - 120 / 6 - 8)
Near Normal
(220 - 270 / 15 - 18)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  March April May
Northern
Average max/min Temp.
Slightly Above Normal
36 - 38 / 21 - 23
Slightly Above Normal
37 - 39 / 24 - 26
Slightly Above Normal
34 - 36 / 24 - 26
Northeastern
Average max/min Temp.
Slightly Above Normal
35 - 37 / 23 - 25
Slightly Above Normal
36 - 38 / 25 - 27
Slightly Above Normal
34 - 36 / 25 - 27
Central
Average max/min Temp.
Slightly Above Normal
36 - 38 / 25 - 27
Slightly Above Normal
37 - 39 / 26 - 28
Slightly Above Normal
35 - 37 / 26 - 28
Eastern
Average max/min Temp.
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 26 - 28
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
34 - 36 / 25 - 27
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 26 - 28
Issued Date February 28, 2017
During February - April 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

Overview Prediction :
During the beginning and the middle of February, fluctuate weather will occur at the Upper Thailand. Together with morning chilly weather and thick fog happens at many areas with thunder rain at some areas. Mean minimum temperatures are 17 19 C and 20 22 C at northern and northeastern parts consecutively. Afterwards, warmer weather will start to appear commonly with hot weather during daytime. Especially in April, very hot weather will occur at many areas with maximum temperature as 42 43 C along with thunder rain, gusty wind and hail at many areas. Except for the northern and northeastern parts, cool morning weather will still appear during March.
These events are due to cold air mass areas prevailing over the Upper Thailand from time to time confronting with occurring hot weather, mostly during February and March. Also, easterly or southeasterly winds will prevail over the Gulf of Thailand and the Southern Thailand during almost all of these three months. Furthermore, they start to transform to be prevailing southwesterly winds during late April.
Briefly overview: Temperature and rain prediction of the Upper Thailand during these three months will be slightly above normal.

During the start and the middle of February, fluctuate weather will occur commonly. In other words, warmer weather with thunder rain will appear at many areas and thick fog happens at many areas on some days, especially around mountainous areas. For northern and northeastern parts, chilly morning weather still appears while cool weather occurs at central and eastern parts. This results from moderately high pressure air mass areas from China still prevailing over the northern and northeastern parts periodically.
During late February until middle March, warmer weather will occur again with thick fog appearing at some areas on some days and hot weather happens at daytime. Whereas morning cool weather appears at the northern and northeastern parts while cool weather occurs at the central and eastern parts at some areas on some days, mostly at the upper portion. This results from prevailing high pressure air mass areas weakening discontinuously.
Then during middle March until April, sweltering weather occurs commonly with very hot weather at many areas on some days. Extreme maximum temperatures may reach 42 43 C. Except for some periods thunder rain will occur at many areas helping reduce some heat resulting from weakening high pressure air mass areas prevailing from time to time. In addition, southerly or southeasterly winds will prevail together with heat low-pressure air mass cells prevail over the Upper Thailand.

Southern Thailand

Overview Prediction :
For Southern Thailand, The amount and distribution of rainfall will reduce and begins to increase in April with hot weather at some areas on some days, mostly at the upper portion.
Also, easterly or southeasterly winds will prevail over the Gulf of Thailand and the Southern Thailand during almost all of these three months. Furthermore, they start to transform to be prevailing southwesterly winds during late April.
Briefly overview: Temperature and rain prediction of the Southern Thailand during these three months will be slightly above normal.

Since February until late April, the amount and distribution of rainfall will reduce as 20 30% of the area with hot weather at some areas on some days, mostly at the upper portion. For wind waves at the Gulf of Thailand and the Andaman Sea, they will be about 1 meter high due to easterly or southeasterly wind prevailing over the Gulf of Thailand and the Southern Thailand almost all of this period.
Then during late April, more rain appears especially at the western coast with heavy rain at some areas. While wind waves in the Andaman Sea will be more active as 2 3 meters high whereas those in the Gulf of Thailand are about 1 meter high due to southwestern monsoon starting to prevail over the Andaman Sea and the Southern Thailand.

Cautions
February: Possibly, westerly wind waves moving pass Myanmar will influence the Upper Thailand to meet thunder rain, gusty wind and probable hail. March and April: Summer thunderstorms often occur as thunder rain, gusty wind and possible hail at some areas and may cause the loss of life with crop and property damages. Late April: Some low-pressure air mass cells may develop in the Andaman Sea and strengthening to become depressions, tropical storms and cyclones further. Their movements are toward northeasterly and may reach the western side of Thailand. Thus, more rainfall will occur at the western portion of the northern and central parts including with that of the Southern Thailand. People then should follow the weather forecast news from the Thai Meteorological Department closely.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of February 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  February March April
Northern
(Rainfall/Rainy days)
Slightly Above Normal
(10 - 20 / 2 - 3)
Slightly Above Normal
(30 - 50 / 3 - 4)
Slightly Above Normal
(70 - 100 / 7 - 10)
Northeastern
(Rainfall/Rainy days)
Slightly Above Normal
(20 - 40 / 3 - 5)
Slightly Above Normal
(40 - 60 / 5 - 7)
Slightly Above Normal
(80 - 110 / 8 - 11)
Central
(Rainfall/Rainy days)
Above Normal
(15 - 30 / 2 - 3)
Above Normal
(50 - 80 / 4 - 6)
Above Normal
(80 - 110 / 7 - 10)
Eastern
(Rainfall/Rainy days)
Above Normal
(40 - 60 / 3 - 5)
Above Normal
(70 - 100 / 6 - 8)
Above Normal
(100 - 140 / 8 - 11)
Southern (East Coast)
(Rainfall/Rainy days)
Above Normal
(40 - 60 / 4 - 6)
Above Normal
(70 - 100 / 6 - 8)
Above Normal
(80 - 110 / 7 - 10)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(30 - 50 / 3 - 5)
Slightly Above Normal
(90 - 120 / 7 - 9)
Slightly Above Normal
(160 - 200 / 12 - 14)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Above Normal
(20 - 40 / 3 - 5)
Above Normal
(40 - 60 / 4 - 6)
Above Normal
(90 - 120 / 6 - 8)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  February March April
Northern
Average max/min Temp.
Slightly Above Normal
34 - 36 / 17 - 19
Slightly Above Normal
36 - 38 / 20 - 22
Slightly Above Normal
37 - 39 / 24 - 26
Northeastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 20 - 22
Slightly Above Normal
35 - 37 / 22 - 24
Slightly Above Normal
36 - 38 / 25 - 27
Central
Average max/min Temp.
Slightly Above Normal
35 - 37 / 23 - 25
Slightly Above Normal
36 - 38 / 25 - 27
Slightly Above Normal
37 - 39 / 26 - 28
Eastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 23 - 25
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
35 - 37 / 26 - 28
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
31 - 33 / 23 - 25
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
34 - 36 / 25 - 27
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
34 - 36 / 23 - 25
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
34 - 36 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
35 - 37 / 26 - 28
Issued Date January 27, 2017
During January - March 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

Overall Prediction:
Thailand will meet chilly weather commonly in January especially at northern and northeastern parts with mean minimum temperature about 15-18 C. Together with very cold weather happens at some areas at the upper portion of both parts with possible frost at valleys and mountains on some days while cool morning weather occurs widely with mean minimum temperature around 20-22 C. at central and eastern parts.

At the end of February, a general increase in temperature appears. Whereas chilly morning weather occurs at the northern and northeastern parts with dense fog in many areas with mean minimum temperature about 17-19 C. and 20-22 C. respectively. But hot weather occurs during daytime continued throughout February until March that very hot weather areas appear. Mean maximum temperature in March around the northern and northeastern parts is about 36-38 C. Furthermore, the Upper Thailand will meet rain and thunderstorm at some areas with hail, especially in March.

Details are as the following:
In January, the northern and northeastern parts still meet chilly weather commonly with very cold weather at some areas on some days, especially at the upper portion. Furthermore, dense fog occurs in many areas on some days together with mountain tops or mountainous areas meet cold to very cold weather with frost on some days and dense fog in many areas. Moreover, the central and eastern parts will meet cool weather widely with cold weather at some areas mostly at the upper portion and dense fog in many areas on some days. Besides, thunderstorm and hail may occur at some areas during some periods together with wind waves around the eastern part are about 1 meter high due to rather actively high pressure air mass areas from China still prevailing over the Upper Thailand periodically and continuously. Additionally, westerly wind waves may pass through the Upper Thailand at some periods.

Then in February, weather will be variable as thunderstorm happens at many areas on some days, mostly during the 1st half of this month. Also, dense fog will occur at many areas because warmer weather happens. Whereas hot weather appears at many areas during daytime mostly during the 2nd half of the month, but the northern and northeastern parts still meet chilly morning weather even prevailing high pressure air mass areas from China over the Upper Thailand weakening continuously.

For March, hot weather occurs widely with very hot weather at many areas, mostly during the 2nd half of this month. Extreme maximum temperature may reach 42 43 C. But at some periods, thunderstorm will occur at many areas helping reduce some heat because the prevailing high pressure air mass areas weaken from time to time along with increasingly prevailing southerly or southeasterly wind. In addition, heat low air mass cells will cover the Upper Thailand at some periods.

Southern Thailand

Overall Prediction:
The Southern Thailand still meets heavy to very heavy rain in some places continuously, mostly at the first half of January. Also, hot weather appears at some areas, particularly at the upper portion.

Details are as the following:
About at the 1st half of January, the Southern Thailand still meets dense rainfall with heavy rain at many areas and very heavy rain at some areas, specifically at the eastern coast from Surat Thani province downward. Whereas wind waves in the Gulf of Thailand will be rather strong as 2 4 meters high while those in the Andaman Sea are about 1 meter high because of rather active northeastern monsoon still prevailing over the Gulf of Thailand and the Southern Thailand. Additionally, the Southern Thailand may be influenced by actively low pressure air mass cells moving near or pass the lower portion.

Then since the 2nd half of January until March, the amount and distribution of rainfall will reduce as 20-30% of the area and hot weather appears at many areas on some days. While wind waves in both of the Gulf of Thailand and the Andaman Sea are about 1 meter high because the prevailing northeastern monsoon over the Gulf of Thailand and the Southern Thailand weakens, and transforms to be prevailing eastern or southeastern wind instead.

Cautions
January and February, westerly wind waves often move pass the Upper Thailand influencing thunderstorm and hail to occur. March, summer thunderstorm often appears as thunderstorm, gusty wind and hail at some areas causing the loss of life and property damages. People should follow the weather forecast news from the Thai Meteorological Department closely.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of January 2017.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  January February March
Northern
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(5 - 15 / 2 - 3)
Near Normal
(20 - 40 / 3 - 4)
Northeastern
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(10 - 20 / 2 - 3)
Near Normal
(30 - 50 / 4 - 6)
Central
(Rainfall/Rainy days)
Slightly Above Normal
(10 - 20 / 2 - 3)
Slightly Above Normal
(15 - 30 / 2 - 3)
Slightly Above Normal
(40 - 60 / 4 - 6)
Eastern
(Rainfall/Rainy days)
Slightly Above Normal
(15 - 30 / 2 - 3)
Slightly Above Normal
(30 - 50 / 3 - 5)
Slightly Above Normal
(60 - 90 / 5 - 7)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(60 - 90 / 7 - 10)
Slightly Above Normal
(30 - 50 / 3 - 5)
Slightly Above Normal
(60 - 90 / 5 - 7)
Southern (West Coast)
(Rainfall/Rainy days)
Near Normal
(20 - 40 / 3 - 5)
Near Normal
(20 - 40 / 3 - 5)
Near Normal
(70 - 100 / 7 - 9)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Above Normal
(10 - 20 / 2 - 3)
Slightly Above Normal
(20 - 40 / 2 - 3)
Slightly Above Normal
(40 - 60 / 3 - 5)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  January February March
Northern
Average max/min Temp.
Near Normal
30 - 32 / 15 - 17
Slightly Above Normal
34 - 36 / 17 - 19
Slightly Above Normal
36 - 38 / 20 - 22
Northeastern
Average max/min Temp.
Near Normal
30 - 32 / 16 - 18
Slightly Above Normal
33 - 35 / 20 - 22
Slightly Above Normal
35 - 37 / 22 - 24
Central
Average max/min Temp.
Near Normal
32 - 34 / 20 - 22
Slightly Above Normal
35 - 37 / 23 - 25
Slightly Above Normal
36 - 38 / 25 - 27
Eastern
Average max/min Temp.
Near Normal
31 - 33 / 20 - 22
Slightly Above Normal
33 - 35 / 23 - 25
Slightly Above Normal
34 - 36 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Near Normal
29 - 31 / 21 - 23
Slightly Above Normal
31 - 33 / 23 - 25
Slightly Above Normal
33 - 35 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Near Normal
32 - 34 / 22 - 24
Slightly Above Normal
33 - 35 / 23 - 25
Slightly Above Normal
34 - 36 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Near Normal
32 - 34 / 22 - 24
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
34 - 36 / 26 - 28
Issued Date December 28, 2016
During December 2016 - February 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During December 2016 and January 2017, the Upper Thailand will be generally cool or cold and colder than that of the past 2 3 years, While the mean minimum temperature of the Northern and Northeastern parts is about 15 17 C whereas that of the Central and Eastern parts is about 19 21 C. Besides, the extreme minimum temperature is about 6 7 C around the upper portion at both of the northern and northeastern parts. Moreover, the extreme minimum temperature around Bangkok Metropolitan and Vicinity is about 14 15 C. Furthermore, Northern and Northeastern parts may experience thunderstorms and hails at some periods.
While in the end of February the Upper Thailand will be warmer but with cool or cold morning weather.
During December until January, the northern and northeastern parts will be generally cool or cold, even with the coldest weather on some days at the upper portion with the extreme minimum temperature about 15 17 C, Whereas the central and eastern parts will experience cool weather generally with cold weather at many areas, especially at the upper portion with the extreme minimum temperature about 19 21 C. For mountain tops and mountainous areas, cold to very cold weather happens with frost on some days and thick fog at many areas. While wind waves at the sea around the eastern part will be about 1 meter high because high pressure air mass areas from China prevailing over the Upper Thailand periodically are mostly continuously active. Then in February, the unstable weather occurs, mostly at the 1st half of the month. Also, thunder rain happens on some days with thick fog at many areas whereas hot weather begins to appear at daytime. But the northern and northeastern parts still experience cool or cold morning weather because high pressure air mass areas from China prevailing over the Upper Thailand weaken discontinuously.

Southern Thailand

During December 2016 and January 2017, the Southern Thailand, dense rainfall occurs especially in December together with heavy rain appears at many areas with very heavy rain at some areas. Thus, flash flood will overflow at disaster-prone areas.
While in the end of February : the Southern Thailand experiences reducing amount and distribution of rainfall exceedingly.
During December until middle January, the Southern Thailand still experiences dense rainfall further with heavy rain at many areas and very heavy rain at some areas, specifically at the eastern coast from Surat Thani province downward. As a result, flash or forest flood will overflow at disaster-prone areas. For wind waves in the Gulf of Thailand, they are rather active as 2 4 meters high at some periods but those in the Andaman Sea are about 1 meter high because of the prevailing northeastern monsoon over the Gulf of Thailand and the Southern Thailand being active periodically. Additionally, a monsoon trough places over the lower portion of the Southern Thailand at some periods. Furthermore, the Southern Thailand is still influenced by actively low pressure air mass cells or tropical cyclones moving near or through. Then during the 2nd half of January until February, the amount and distribution of rainfall will lessen and wind waves in the Gulf of Thailand weaken causing wind waves in the Andaman Sea and the Gulf of Thailand to be about 1 meter high. This results from the northeastern monsoon prevailing over the Gulf of Thailand and the Southern Thailand weakens and changes to be the prevailing eastern or southeastern wind instead.

Cautions
December: Actively low pressure air mass cells often develop in the lower portion of the South China Sea and then strengthen to become tropical cyclones (depressions, tropical storms or typhoons). They favor a high chance to move pass the Gulf of Thailand toward the lower portion of the Southern Thailand. As a result, rainfall will occur widely with heavy to very heavy rain at many areas causing flash or forest flood to overflow at some areas with actively wind waves in the Gulf of Thailand as being 2 4 meters high. Furthermore, storm surges may appear around the eastern coast of the Southern Thailand. January and February: Westerly wind waves often move pass the Upper Thailand influencing thunder rain and gusty wind to occur at some areas with possible hail. Then, the public should follow the weather forecast news from the Thai Meteorological Department continuously.
Remark:
Remarks: - Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of December 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.


Expected rain (millimeters) and rainy days (days) comparing to normal:
  December January February
Northern
(Rainfall/Rainy days)
Near Normal
(5 - 15 / 1 - 2)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(10 - 20 / 2 - 3)
Northeastern
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(10 - 20 / 2 - 3)
Central
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Slightly Above Normal
(10 - 20 / 2 - 3)
Slightly Above Normal
(15 - 30 / 2 - 3)
Eastern
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Slightly Above Normal
(15 - 30 / 2 - 3)
Slightly Above Normal
(30 - 50 / 3 - 5)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(230 - 280 / 12 - 14)
Slightly Above Normal
(60 - 90 / 7 - 10)
Slightly Above Normal
(40 - 60 / 4 - 6)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(70 - 100 / 8 - 11)
Slightly Above Normal
(20 - 40 / 3 - 5)
Slightly Above Normal
(30 - 50 / 3 - 5)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(0 - 10 / 1 - 2)
Slightly Above Normal
(10 - 20 / 2 - 3)
Slightly Above Normal
(20 - 40 / 2 - 3)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  December January February
Northern
Average max/min Temp.
Near Normal
29 - 31 / 15 - 17
Near Normal
31 - 33 / 15 - 17
Near Normal
33 - 35 / 16 - 18
Northeastern
Average max/min Temp.
Near Normal
29 - 31 / 16 - 18
Near Normal
30 - 32 / 16 - 18
Near Normal
32 - 34 / 19 - 21
Central
Average max/min Temp.
Near Normal
30 - 32 / 19 - 21
Near Normal
32 - 34 / 20 - 22
Near Normal
34 - 36 / 22 - 24
Eastern
Average max/min Temp.
Near Normal
31 - 33 / 20 - 22
Near Normal
31 - 33 / 20 - 22
Near Normal
32 - 34 / 22 - 24
Southern (East Coast)
Average max/min Temp.
Near Normal
29 - 31 / 21 - 23
Near Normal
29 - 31 / 21 - 23
Near Normal
30 - 32 / 22 - 24
Southern (West Coast)
Average max/min Temp.
Near Normal
30 - 32 / 22 - 24
Near Normal
32 - 34 / 22 - 24
Near Normal
33 - 35 / 22 - 24
Bangkok Metropolis and Vicinity
Average max/min Temp.
Near Normal
31 - 33 / 21 - 23
Near Normal
32 - 34 / 22 - 24
Near Normal
32 - 34 / 23 - 25
Issued Date November 29, 2016
During November 2016 - January 2017
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During November 2016 until January 2017, the temperature around Thailand will reduce and starts to be cooler or colder consecutively. Mean minimum temperature in the Upper Thailand will be colder than that of the last 2 3 years ago. During December until January, Mean minimum temperature in the Upper Thailand around 18 20 C. Whereas the Extreme minimum temperature around 6 7 C. in upper portion of Northern and Northeastern parts and around 14 - 15 C. in Bangkok and Vicinity. For amount and distribution of rainfall at the Upper Thailand is going to lessen almost widely for being in the winter season already,
In November, the amount and distribution of rain will reduce distinctly with more cool or cold weather. While the northern and northeastern parts will face up to cool weather almost widely with cold weather at many areas, specifically at the upper portion; mean minimum temperature about 19 21 C. Whereas the central and eastern parts will face up to cool weather at many areas, especially at the upper portion; mean minimum temperature around 22 24 C. Moreover, wind waves in the sea around the eastern part will be about 1 meter high. These phenomena occur since moderate to rather active high pressure air masses prevail on the Upper Thailand periodically. Then in December till January, cooler or colder weather will happen more. For the northern and northeastern parts, they will face up to cool or cold weather widely with very cold weather at some areas of the upper portion; mean minimum temperature around 15 17 C. While at the central and eastern parts, cool weather will appear widely with cold weather occurring on some days especially at the upper portion; mean minimum temperature about 20 22 C. Besides, wind waves near the sea of the eastern part will be about 1 meter high. Additionally, for the mountains and mountainous areas, the weather will be cold to very cold with frost possibly happening on some days and thick fog possibly appearing at some areas. These phenomena will happen because of actively high pressure air masses from China prevailing on the Upper Thailand periodically and more continuously.

Southern Thailand

During November 2016 until January 2017, Southern Thailand especially around the Gulf of Thailand will face up to abundant rain and is possibly influenced by tropical cyclones during November and December. Furthermore, the Southern Thailand will face up to heavy rain at many areas and very heavy rain at some areas specifically at the eastern shore (the Gulf of Thailand) during November and December. Also, flash flood will overflow at disaster-prone areas. While wind waves in the Gulf of Thailand will be active from time to time, they will be 2 4 meters high at some periods.
Since November until middle January, the Southern Thailand will face up to abundant rain further mostly in November and December, especially at the eastern coast from Chumphon province downward, as heavy rain at many areas and very heavy rain at some areas. Flash flood will overflow at disaster-prone areas. For wind waves in the Gulf of Thailand, they will be 2 4 meters high at some periods while those in the Andaman Sea are about 1 meter high. These phenomena will appear because the northeastern monsoon prevailing on the Gulf of Thailand and the Southern Thailand is continuously active from time to time. Also, the Southern Thailand will face up to the monsoon trough placing on at some periods and be influenced by some tropical cyclones moving near or through. Later during the 2nd half of January, the northeastern monsoon prevailing on the Gulf of Thailand and the Southern Thailand will weaken and starts to transform as prevailing eastern or southeastern winds. Thus, the rainfall at the Southern Thailand will reduce as well as wind waves in the Andaman Sea are going to weaken too.

Cautions
In November, some tropical cyclones are highly expected to move near Thailand or through the Southern Thailand by passing the southern tip of the Indochina Peninsula toward the Gulf of Thailand. As a result, the eastern coast of the Southern Thailand (the Gulf of Thailand) will face up to more rain possibly bringing about flash or forest flood at some areas. In December, some westerly wind waves may move pass the Upper Thailand influencing the area to face up to thunderstorms and gusty winds at some areas with possibly falling hails. For this reason, the public should follow the weather forecast news from the Thai Meteorological Department continuously further.
Remark:
Remarks: - Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of November 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  November December January
Northern
(Rainfall/Rainy days)
Slightly Above Normal
(30 - 50 / 3 - 5)
Slightly Above Normal
(10 - 20 / 1 - 2)
Slightly Above Normal
(10 - 20 / 1 - 2)
Northeastern
(Rainfall/Rainy days)
Slightly Above Normal
(20 - 40 / 2 - 4)
Slightly Above Normal
(10 - 20 / 1 - 2)
Slightly Above Normal
(10 - 20 / 1 - 2)
Central
(Rainfall/Rainy days)
Near Normal
(30 - 50 / 3 - 5)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(0 - 10 / 1 - 2)
Eastern
(Rainfall/Rainy days)
Near Normal
(40 - 60 / 5 - 7)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(10 - 20 / 2 - 3)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(350 - 450 / 16 - 19)
Slightly Above Normal
(230 - 280 / 12 - 14)
Slightly Above Normal
(60 - 90 / 7 - 10)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(190 - 240 / 16 - 19)
Slightly Above Normal
(70 - 100 / 8 - 11)
Slightly Above Normal
(20 - 40 / 3 - 5)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(40 - 60 / 5 - 7)
Near Normal
(0 - 10 / 1 - 2)
Near Normal
(10 - 20 / 2 - 3)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  November December January
Northern
Average max/min Temp.
Near Normal
30 - 32 / 19 - 21
Near Normal
29 - 31 / 15 - 17
Near Normal
31 - 33 / 15 - 17
Northeastern
Average max/min Temp.
Near Normal
30 - 32 / 19 - 21
Near Normal
29 - 31 / 16 - 18
Near Normal
30 - 32 / 16 - 18
Central
Average max/min Temp.
Near Normal
31 - 33 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Near Normal
32 - 34 / 20 - 22
Eastern
Average max/min Temp.
Near Normal
31 - 33 / 22 - 24
Near Normal
31 - 33 / 20 - 22
Near Normal
31 - 33 / 20 - 22
Southern (East Coast)
Average max/min Temp.
Near Normal
29 - 31 / 22 - 24
Near Normal
29 - 31 / 21 - 23
Near Normal
29 - 31 / 21 - 23
Southern (West Coast)
Average max/min Temp.
Near Normal
30 - 32 / 23 - 25
Near Normal
30 - 32 / 22 - 24
Near Normal
32 - 34 / 22 - 24
Bangkok Metropolis and Vicinity
Average max/min Temp.
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 21 - 23
Near Normal
32 - 34 / 22 - 24
Issued Date October 26, 2016
During October - December 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During this coming October until December, the total rain of the Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand) will mostly be near normal. Whereas temperature will mostly be near normal. Furthermore, since the 2nd half of October, the Upper Thailand will experience less amount and distribution of rain and starts to experience cool or cold weather more later.
During the 2nd half of October, weather will be unstable. Then, the amount and distribution of rain will reduce with morning cool or cold weather starting to appear; mostly at the northern and northeastern parts, while wind waves around the eastern part are about 1 - 2 meters high. These result from the prevailing southwest monsoon becoming weak and changing to be the prevailing northeastern monsoon instead together with high pressure air mass areas from China beginning to prevail over the northern and northeastern parts from time to time.
For November till December, the amount and distribution of rain will lessen with more cool or cold weather appearing whereas wind waves around the coast of the eastern part are about 1 meter high. These phenomena are caused by high pressure air mass areas from China starting to prevail over the Upper Thailand periodically and more continuously.

Southern Thailand

During this coming October until December, the total rain of Southern Thailand will be above normal whereas temperature will mostly be near normal.The Southern Thailand will experience dense rain continuously, especially around the eastern coast (the Gulf of Thailand). While during October and November, the Southern Thailand will favor a high chance to be influenced by some tropical cyclones moving through or near. Thus, heavy rain will occur at many areas with very heavy rain at some areas. Consequently, flash flood will overflow at some areas.
In October, dense rainfall with heavy to very heavy rain occurs at some areas. While wind waves in the Gulf of Thailand will be more active whereas those in the Andaman Sea and the Gulf of Thailand are about 2-3 meters high at some periods. These phenomena result from the prevailing southwest monsoon over the Southern Thailand becoming weakening and changing to become the prevailing northeast monsoon over the Gulf of Thailand and the Southern Thailand including with a monsoon trough placing over the upper portion of the Southern Thailand at some periods.
While during November and December, dense rainfall appears further, specifically at the eastern coast (the Gulf of Thailand) with heavy rain at many areas and very heavy rain at some areas. Whereas wind waves in the Gulf of Thailand will be about 2-4 meters high at some periods but those in the Andaman Sea will be approximately 1 meter high. These phenomena are influenced by the prevailing northeastern monsoon becoming active periodically together with the monsoon trough moves downward to place over the central and lower portions of the Southern Thailand. Furthermore, the Southern Thailand may be affected by some tropical cyclones moving close or through.

Cautions
October: the central and eastern parts still experience continuous rainfall. Moreover, high tides may occur causing flash flood overflowing at some areas.
November: some tropical cyclones favor a high chance to move near Thailand or through the Southern Thailand by passing the southern tip of the Indochina peninsula toward the Gulf of Thailand. Thus, the east coast (the Gulf of Thailand) will experience more rain causing flash flood at some areas further.
December: westerly wind waves from Myanmar may move pass the Upper Thailand influencing the area to face up thunderstorms and gusty winds at many areas with possibly falling hails. Then, the public should follow the weather forecast news from the Thai Meteorological Department closely further.
Remark:
Remarks: - Normal means average during the 30-year period (A.D. 1981 - 2010 or B.E. 2524 - 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of October 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  October November December
Northern
(Rainfall/Rainy days)
Near Normal
(100 - 140 / 10 - 13)
Near Normal
(20 - 40 / 3 - 5)
Near Normal
(0 - 10 / 1 - 2)
Northeastern
(Rainfall/Rainy days)
Near Normal
(100 - 140 / 9 - 12)
Near Normal
(15 - 30 / 2 - 4)
Near Normal
(0 - 10 / 1 - 2)
Central
(Rainfall/Rainy days)
Near Normal
(160 - 200 / 13 - 16)
Near Normal
(30 - 50 / 3 - 5)
Near Normal
(0 - 10 / 1 - 2)
Eastern
(Rainfall/Rainy days)
Near Normal
(200 - 250 / 15 - 18)
Near Normal
(40 - 60 / 5 - 7)
Near Normal
(0 - 10 / 1 - 2)
Southern (East Coast)
(Rainfall/Rainy days)
Near Normal
(230 - 280 / 18 - 21)
Slightly Above Normal
(350 - 450 / 16 - 19)
Slightly Above Normal
(230 - 280 / 12 - 14)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(360 - 460 / 22 - 25)
Slightly Above Normal
(190 - 240 / 15 - 18)
Near Normal
(60 - 90 / 8 - 11)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(270 - 320 / 16 - 19)
Near Normal
(40 - 60 / 5 - 7)
Near Normal
(0 - 10 / 1 - 2)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  October November December
Northern
Average max/min Temp.
Near Normal
31 - 33 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Near Normal
29 - 31 / 15 - 17
Northeastern
Average max/min Temp.
Near Normal
30 - 32 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Near Normal
29 - 31 / 16 - 18
Central
Average max/min Temp.
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Eastern
Average max/min Temp.
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 22 - 24
Near Normal
31 - 33 / 20 - 22
Southern (East Coast)
Average max/min Temp.
Near Normal
30 - 32 / 23 - 25
Near Normal
29 - 31 / 22 - 24
Near Normal
29 - 31 / 21 - 23
Southern (West Coast)
Average max/min Temp.
Near Normal
30 - 32 / 23 - 25
Near Normal
30 - 32 / 23 - 25
Near Normal
30 - 32 / 22 - 24
Bangkok Metropolis and Vicinity
Average max/min Temp.
Near Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 21 - 23
Issued Date September 27, 2016
During September - November 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During the next 3 months during September until November, the total rain will mostly be above normal, with a high probability to be affected by tropical cyclones in the South China Sea. While in September, abundant rainfall with heavy to very heavy rain will occur at many areas whereas flash flood will overflow at some areas. Later at the 2nd half of October, the rainfall will reduce and morning cool or cold weather starts to appear, especially at the upper portion of the northern and northeastern parts. For November, the amount and distribution of rainfall will lessen again and cool or cold weather happens more often.
September: Abundant rainfall distribution as 60 - 80% of the area with heavy rain at many areas and very heavy rain at some areas will occur. As a result, flash flood will overflow at some areas. For wind waves around the eastern part, they will be active as 2 - 4 meters high. They result from the prevailing southwest monsoon over the Andaman Sea and Thailand still being active from time to time. Moreover, a monsoon trough places over the central part, the lower portion of the northeastern part, and the eastern part at some periods. Furthermore, the Upper Thailand may be affected by some tropical cyclones moving close or nearby.
October: During the 1st half, weather will be unstable. Then, the amount and distribution of rainfall will reduce and morning cool or cold weather begins to appear, especially at the northern and northeastern parts. For wind waves around the eastern part, they will be about 1 - 2 meters high as the prevailing southwest monsoon weakens. Then during the 2nd half, the northeastern monsoon starts to prevail instead. In other words, high pressure air mass areas from China will prevail over the northern and northeastern parts periodically.
November: The amount and distribution of rainfall will lessen again with more cool or cold weather. The wind waves in the eastern part will be about 1-meter high because mostly rather active high pressure air mass areas from China will prevail over the Upper Thailand from time to time.

Southern Thailand

During the next 3 months during September until November, the total rain will mostly be above normal. Abundant rainfall with heavy to very heavy rain will occur at many areas whereas flash flood will overflow at some areas.
September: Abundant rainfall distribution about 60 - 80% of the area, specifically at the west coast (the Andaman Sea) together with heavy to very heavy rain at many areas will occur. And flash flood may overflow at some areas. While wind waves at the Andaman Sea will be active as 2 - 4 meters high at some periods whereas those in the Gulf of Thailand will be around 1 - 2 meters high.
October: Abundant rainfall distribution with heavy to very heavy rain still occurs at some areas while wind waves in both of the Andaman Sea and the Gulf of Thailand become more active as 2 - 3 meters high at some periods. This results from the prevailing southwest monsoon weakening and starting to change to be the prevailing northeastern monsoon over the Gulf of Thailand and the Southern Thailand instead. Furthermore, the monsoon trough will place over the upper portion of the Southern Thailand at some periods.
November: Abundant rainfall still occurs at the eastern coast (the Gulf of Thailand) further with heavy to very heavy rain at some areas. For wind waves in the Gulf of Thailand, they will be as high as 2 - 4 meters high at some periods while those in the Andaman Sea will be about 1 meter high. This result from the prevailing northeastern monsoon becoming more active together with the monsoon trough will move downward to place over the central portion of the Southern Thailand.

Cautions
September: Some tropical cyclones often move near the South China Sea influencing the southwest monsoon to strengthen. Consequently, abundant rainfall will appear in Thailand with heavy to very heavy rain at some areas. October and November: Some tropical cyclones will favor a high probability to move pass the Mekong Delta toward the Southern Thailand. As a result, densely abundant rainfall will happen at many areas. Especially at the areas passing by the tropical cyclones, heavy to very heavy rain will occur at some areas. The public then should follow the weather forecast news and warnings about tropical cyclones from the Thai Meteorological Department.
Remark:
Remarks: - Normal means average during the 30-year period (A.D. 1981 - 2010 or B.E. 2524 - 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of September 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  September October November
Northern
(Rainfall/Rainy days)
Above Normal
(230 - 280 / 18 - 21)
Near Normal
(100 - 140 / 10 - 13)
Near Normal
(20 - 40 / 3 - 5)
Northeastern
(Rainfall/Rainy days)
Above Normal
(250 - 300 / 17 - 20)
Near Normal
(100 - 140 / 9 - 12)
Near Normal
(15 - 30 / 2 - 4)
Central
(Rainfall/Rainy days)
Above Normal
(260 - 310 / 19 - 22)
Above Normal
(200 - 250 / 14 - 17)
Near Normal
(30 - 50 / 3 - 5)
Eastern
(Rainfall/Rainy days)
Above Normal
(350 - 450 / 19 - 22)
Near Normal
(200 - 250 / 15 - 18)
Near Normal
(40 - 60 / 5 - 7)
Southern (East Coast)
(Rainfall/Rainy days)
Near Normal
(130 - 170 / 15 - 18)
Above Normal
(270 - 320 / 18 - 21)
Near Normal
(300 - 400 / 15 - 18)
Southern (West Coast)
(Rainfall/Rainy days)
Above Normal
(430 - 530 / 22 - 25)
Above Normal
(370 - 470 / 22 - 25)
Near Normal
(170 - 220 / 15 - 18)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Above Normal
(350 - 450 / 21 - 24)
Near Normal
(270 - 320 / 16 - 19)
Near Normal
(40 - 60 / 5 - 7)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  September October November
Northern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Northeastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
30 - 32 / 22 - 24
Near Normal
30 - 32 / 19 - 21
Central
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 22 - 24
Eastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 25 - 27
Near Normal
31 - 33 / 23 - 25
Near Normal
31 - 33 / 22 - 24
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
32 - 34 / 23 - 25
Near Normal
30 - 32 / 23 - 25
Near Normal
29 - 31 / 22 - 24
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
31 - 33 / 24 - 26
Near Normal
30 - 32 / 23 - 25
Near Normal
30 - 32 / 23 - 25
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Near Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 23 - 25
Issued Date August 30, 2016
During August - October 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During this August until October, the total rain will mostly be slightly above normal. Whereas in August and September, the Upper Thailand will experience denser rainfall with heavy to very heavy rain at some areas influencing flash flood to overflow at some areas. While during some periods, increasing rain may happen due to tropical cyclones favoring to move pass the Upper Thailand.During the second half of October, the amount and distribution of rainfall will lessen and morning cool air starts to occur in northern and northeastern parts.
During August and September, dense rainfall appears as 60 80% of the area with heavy to very heavy rain at some areas. The total rain will be slightly above normal. While wind waves around the eastern part will be active as 2 4 meters high at some periods since the southwest monsoon still prevails over the Andaman Sea and Thailand continuously and actively from time to time. Additionally, a monsoon trough will place over at some periods and also tropical cyclones moving pass the Upper Thailand and the South China Sea may affect Thailand further. Then in October, weather will be unstable. The second half of October, The amount and distribution of rainfall will reduce and morning cool or cold weather begins to appear especially at the upper portions of both of the northern and northeastern parts. Whereas wind waves at coastal areas of the eastern part will be 1 2 meters high because the prevailing southwest monsoon weakens and changes to be the prevailing northeastern monsoon instead. Together with high pressure air mass areas from China will begin to prevail over the northern and northeastern parts periodically.

Southern Thailand

During this August until October, the total rain will mostly be slightly above normal. Whereas in August and September, the Southern Thailand will experience denser rainfall with heavy to very heavy rain at some areas influencing flash flood to overflow at some areas.
In August and September, the Southern Thailand will experience dense rainfall with heavy to very heavy rain at some areas, especially at the Southern Thailand (west coast). For wind waves at the Andaman Sea, they will be 2 4 meters at some periods whereas those in the Gulf of Thailand will be 1 2 meters high because of the prevailing southwest monsoon over the Andaman Sea and the Southern Thailand being active from time to time.
Then in October, the Southern Thailand will experience dense rainfall with heavy to very heavy rain at some areas. For wind waves in the Gulf of Thailand will be more active as 2 3 meters at some periods. While those in the Andaman Sea will be 1 2 meters high since the prevailing southwest monsoon weakens and starts to change to be the prevailing northeastern monsoon over the Gulf of Thailand and the Southern Thailand. Moreover, the monsoon trough will move downward to place over the upper portion of the Southern Thailand at some periods.

Cautions
During August and September, tropical cyclones often develop in the Northwest Pacific and move northwest passing the South China Sea influencing Thailand to experience dense rainfall with heavy to very rain at some areas.
In October, some tropical cyclones favor a high chance to move pass the tip of Indochina and move near or pass the Southern Thailand. For this reason, the affected area will face up to densely abundant rain with heavy to very heavy rain at some areas. The public then should follow the weather forecast news and tropical cyclone warnings from the Thai Meteorological Department further.
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of August 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  August September October
Northern
(Rainfall/Rainy days)
Slightly Above Normal
(220 - 270 / 21 - 23)
Slightly Above Normal
(210 - 260 / 18 - 21)
Near Normal
(100 - 140 / 10 - 13)
Northeastern
(Rainfall/Rainy days)
Slightly Above Normal
(260 - 310 / 19 - 22)
Slightly Above Normal
(240 - 290 / 17 - 20)
Near Normal
(100 - 140 / 10 - 13)
Central
(Rainfall/Rainy days)
Near Normal
(160 - 200 / 17 - 20)
Near Normal
(240 - 290 / 18 - 21)
Near Normal
(170 - 220 / 13 - 16)
Eastern
(Rainfall/Rainy days)
Slightly Above Normal
(300 - 400 / 19 - 22)
Slightly Above Normal
(300 - 400 / 19 - 22)
Near Normal
(200 - 250 / 15 - 18)
Southern (East Coast)
(Rainfall/Rainy days)
Near Normal
(100 - 140 / 14 - 17)
Near Normal
(130 - 170 / 15 - 18)
Near Normal
(230 - 280 / 17 - 20)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Above Normal
(400 - 500 / 20 - 23)
Slightly Above Normal
(400 - 500 / 22 - 25)
Near Normal
(300 - 400 / 21 - 24)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Above Normal
(210 - 260 / 19 - 22)
Slightly Above Normal
(300 - 400 / 20 - 23)
Near Normal
(270 - 320 / 16 - 19)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  August September October
Northern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 22 - 24
Northeastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
30 - 32 / 22 - 24
Central
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Near Normal
31 - 33 / 23 - 25
Eastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Near Normal
31 - 33 / 23 - 25
Southern (East Coast)
Average max/min Temp.
Near Normal
32 - 34 / 24 - 26
Near Normal
32 - 34 / 23 - 25
Near Normal
31 - 33 / 23 - 25
Southern (West Coast)
Average max/min Temp.
Near Normal
31 - 33 / 24 - 26
Near Normal
30 - 32 / 23 - 25
Near Normal
30 - 32 / 23 - 25
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Near Normal
32 - 34 / 24 - 26
Issued Date July 27, 2016
During June - August 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During 3 months in June to August, rainfall in the Upper Thailand will increase especially in August. Thus, flash flood and overflow will inundate at some areas. The total rain will mostly be near normal. Moreover, mean temperature of the Upper Thailand will be slightly above normal.
In June, abundant rainfall and heavy rain will appear at some areas mainly in the 1st half of June, especially around the eastern part and the western portion of both of the northern and central parts, whereas wind waves at the eastern part will be rather active as 2 -3 meters high at some periods. Due to the rather active southwest monsoon prevailing over the Andaman Sea and Thailand from time to time, also the monsoon trough will place over the northern and northeastern parts at some periods.
Then, during the 2nd half of June until middle July, the amount and distribution of rain will reduce greatly. As a result, the dry spell period will appear causing water shortage for agriculture at many areas, especially at the areas outside irrigation zones. For wind waves around the eastern part, they will weaken as 1 2 meters high since the prevailing southwest monsoon over the Andaman Sea and Thailand weakens. Additionally, the monsoon trough will move up to place over the southern portion of China.
Since middle July until August, abundant rain will reappear as heavy to very heavy rain at some areas. Flash flood, forest flood and overflow will inundate at some areas. Furthermore, wind waves at the eastern part will be active as 2 4 meters high at some periods because the prevailing southwest monsoon over the Andaman Sea and Thailand will be more active continuously. Also, the monsoon trough will move downward to place over the upper portion of both of the northern and northeastern parts.

Southern Thailand

During 3 months in June to August, rainfall in the Southern Thailand will increase especially in west coast. Thus, flash flood and overflow will inundate at some areas. The total rain will mostly be near normal. Moreover, mean temperature of the Southern Thailand will be near normal.
From June until August, abundant rain still occurs especially at the Southern Thailand (the West Coast). Together with heavy to very heavy rain happens at some areas with forest flood, forest flood and overflow inundating at some areas. Besides, wind waves at the Andaman Sea will be rather active as 2 4 meters high at some periods. While those at the Gulf of Thailand will be about 1 meter for the prevailing southwest monsoon over the Andaman Sea and the Southern Thailand will be rather active periodically.

Cautions
June and July, Some tropical cyclones often develop at the western portion of the Northwestern Pacific and may move pass the Philippines toward the South China Sea. For this reason, the southwest monsoon prevailing over Thailand and the Gulf of Thailand will be more active causing Thailand to experience more rain, especially around the coastal areas of the eastern part and the Southern Thailand (the West Coast). August, Some tropical cyclones often develop at the western portion of the Northwestern Pacific or the South China Sea and they favor a high chance to move nearer or pass the Upper Thailand. Thus, Thailand will experience densely abundant rainfall with heavy to very heavy rain at many areas. Consequently, flash flood, forest flood and overflow will inundate at many areas. Thus, the public should follow the weather forecast news and warnings of tropical cyclones from the Thai Meteorological Department further.
Remark:
Remarks: - Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of May 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  June July August
Northern
(Rainfall/Rainy days)
Slightly Below Normal
(120 - 160 / 16 - 19)
Near Normal
(160 - 200 / 17 - 20)
Near Normal
(200 - 250 / 19 - 22)
Northeastern
(Rainfall/Rainy days)
Near Normal
(180 - 220 / 14 - 17)
Near Normal
(190 - 230 / 16 - 19)
Near Normal
(240 - 290 / 18 - 21)
Central
(Rainfall/Rainy days)
Slightly Below Normal
(110 - 250 / 14 - 17)
Near Normal
(140 - 180 / 15 - 18)
Near Normal
(160 - 200 / 17 - 20)
Eastern
(Rainfall/Rainy days)
Near Normal
(240 - 290 / 15 - 18)
Near Normal
(250 - 300 / 16 - 19)
Near Normal
(280 - 330 / 17 - 20)
Southern (East Coast)
(Rainfall/Rainy days)
Near Normal
(90 - 130 / 12 - 15)
Near Normal
(100 - 140 / 13 - 16)
Near Normal
(100 - 140 / 13 - 16)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(260 - 310 / 17 - 20)
Near Normal
(300 - 400 / 18 - 21)
Near Normal
(350 - 450 / 19 - 22)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Near Normal
(140 - 180 / 13 - 16)
Near Normal
(160 - 200 / 15 - 18)
Near Normal
(200 - 250 / 18 - 20)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  June July August
Northern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Northeastern
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Central
Average max/min Temp.
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Eastern
Average max/min Temp.
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Near Normal
32 - 34 / 24 - 26
Near Normal
32 - 34 / 24 - 26
Near Normal
32 - 34 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Near Normal
31 - 33 / 24 - 26
Near Normal
31 - 33 / 24 - 26
Near Normal
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Slightly Above Normal
33 - 35 / 26 - 28
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Issued Date May 25, 2016
During May - July 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During May, more rain will occur with very heavy rain at some areas, especially around the eastern part & the western portion of both of the northern and central parts. Whereas wind waves at the coastal sea of the eastern part will be more active as 2 3 meters high due to low pressure air mass cells developing at the Andaman Sea at some periods and then strengthening toward depressions or cyclones. Further, they will move northerly to easterly toward the western portion of Thailand. Additionally, the southwest monsoon will prevail over the Andaman Sea and Thailand, especially during the 2nd half of this month the monsoon will be rather active. Moreover, a monsoon trough will place over central and eastern parts at some periods.
In June, abundant rain still appears with very heavy rain at some areas. Wind waves at the coastal area of the eastern part are still active as 2 3 meters at some periods. The southwest monsoon still prevails over the Andaman Sea and Thailand rather actively, especially during the 1st half of this month. Furthermore, the monsoon trough will move up to place over northern and northeastern parts at some periods.
During July, abundant rain still happens with very heavy rain appearing at some areas. For wind waves at the coastal sea of the eastern part, they are still 2 3 meters high during some periods due to the southwest monsoon still prevailing over the Andaman Sea and Thailand. The monsoon will be more active especially at the 2nd half of this month, together with at some periods the monsoon trough will move downward to place over the upper portion of the Upper Thailand again.
In May, the weather still swelters commonly with very hot weather occurring at some areas, mostly at the 1st half of this month. Thunder rain still increasingly appears while total rain is mostly slightly below normal. Whereas mean temperature will above normal. For June until July, total rain is mostly near normal whereas mean temperature will be slightly above normal.

Southern Thailand

From May until July, more rain will happen especially at the Southern Thailand (west coast) with heavy to very heavy rain at some areas. Wind waves at the Andaman Sea will be rather active as 2 3 meters high at some periods. While those in the Gulf of Thailand will be about 1-meter high due to the southwest monsoon prevailing over the Andaman Sea and the Southern Thailand will be moderately active from time to time.
In May, total rain is mostly slightly below normal. Whereas mean temperature will be slightly above normal. For June until July, total rain and mean temperature will be near normal.

Cautions
During June and July, some tropical cyclones often develop in the Northwestern Pacific and move pass the Philippines toward the South China Sea. As a result, the southwest monsoon prevailing over Thailand and the Gulf of Thailand will be more active influencing Thailand to experience more rain, especially around the coastal areas of the eastern part and the Southern Thailand (west coast). The public then should follow daily weather forecast news closely further.
Specifically, during middle June until middle July, the dry spell period often occurs. In other words, the amount and distribution of rainfall will greatly reduce. Thus, water shortage for agriculture will happen at many areas, especially at the repeated drought areas outside irrigation zones.
Remark:
Remarks: -Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of May 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  May June July
Northern
(Rainfall/Rainy days)
Slightly Below Normal
(140 - 180 / 13 - 16)
Near Normal
(130 - 170 / 16 - 19)
Near Normal
(160 - 200 / 17 - 20)
Northeastern
(Rainfall/Rainy days)
Slightly Below Normal
(150 - 190 / 13 - 16)
Near Normal
(180 - 220 / 14 - 17)
Near Normal
(190 - 230 / 16 - 19)
Central
(Rainfall/Rainy days)
Slightly Below Normal
(140 - 180 / 12 - 15)
Near Normal
(130 - 170 / 14 - 17)
Near Normal
(140 - 180 / 15 - 18)
Eastern
(Rainfall/Rainy days)
Slightly Below Normal
(190 - 230 / 13 - 16)
Near Normal
(240 - 290 / 15 - 18)
Near Normal
(250 - 300 / 16 - 19)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(110 - 150 / 12 - 15)
Near Normal
(90 - 130 / 12 - 15)
Near Normal
(100 - 140 / 13 - 16)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(250 - 300 / 17 - 20)
Near Normal
(270 - 312 / 18 - 21)
Near Normal
(300 - 400 / 18 - 21)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Below Normal
(200 - 250 / 13 - 16)
Near Normal
(130 - 170 / 13 - 16)
Near Normal
(160 - 200 / 15 - 18)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  May June July
Northern
Average max/min Temp.
Above Normal
35 - 37 / 24 - 26
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Northeastern
Average max/min Temp.
Above Normal
35 - 37 / 25 - 27
Slightly Above Normal
33 - 35 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Central
Average max/min Temp.
Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 25 - 27
Slightly Above Normal
33 - 35 / 25 - 27
Eastern
Average max/min Temp.
Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
32 - 34 / 25 - 27
Slightly Above Normal
32 - 34 / 25 - 27
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
33 - 35 / 24 - 26
Near Normal
32 - 34 / 24 - 26
Near Normal
32 - 34 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Near Normal
31 - 33 / 24 - 26
Near Normal
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Above Normal
34 - 36 / 26 - 28
Slightly Above Normal
33 - 35 / 26 - 28
Slightly Above Normal
33 - 35 / 25 - 27
Issued Date April 26, 2016
During April - June 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During April, heat low pressure air mass cells still prevail over the Upper Thailand from time to time. Including with the southerly or south-easterly wind will bring moisture from the Gulf of Thailand to prevail over the Upper Thailand almost all of this month. These characteristics will cause the Upper Thailand to experience sweltering weather generally with very hot weather at many areas. Maximum temperature may reach 43 44 °C. Moreover, thunder rain will occur at many areas during some periods, and thus helping reduce some heat. 
Then during the 1st half of May, being the transition phase of seasonal change, weather disturbances will occur as thunder rain at many areas with sweltering weather commonly and very hot weather appearing at some areas. 
From the 2nd half of May until June, the south-westerly wind will prevail over the Andaman Sea, Thailand and the Gulf of Thailand together with the monsoon trough places over central and eastern parts during some periods. These characteristics will influence the Upper Thailand to experience more rain. Also, wind waves at the upper portion of the Gulf of Thailand will be more active as 2 - 3 meters high. 
The total rain amount will be mostly slightly below normal while mean temperature will be above normal.

Southern Thailand

During April, the easterly or south-easterly wind will prevail over the Gulf of Thailand and the Southern Thailand. As a result, the Southern Thailand will still experience slight rain as isolated to widely scattered rainfall with hot weather at many areas on some days while wind waves in the Gulf of Thailand and the Andaman Sea will be about 1-meter high. 
Then during late April until June, the south-westerly wind will prevail over the Andaman Sea and the Southern Thailand almost all of this period actively from time to time. Thus, the Southern Thailand will experience increasing rain amount, especially at the Southern Thailand (West Coast) as heavy to very heavy rain at some areas. Additionally, wind waves at the Andaman Sea will be more active as 2 - 3 meters high while those at the Gulf of Thailand will be about 1-meter high. 
The total rain amount will be slightly below normal while mean temperature will be slightly above normal.

Cautions
April, summer thunderstorms often happen as thunderstorms or thunder rain, wind gust and possible hail at some areas causing damages to household buildings and agricultural areas further.
Late april until May, low pressure air mass cells often develop at the Andaman Sea and then strengthen to become depressions, tropical storms or cyclones. Their movements are northerly to easterly toward the western side of Thailand. Then, more rain occurs at the western portion of the northern and central parts of Thailand including with coastal areas of the eastern part and the Southern Thailand (West Coast). For this reason, the public should follow weather forecast news from the Thai Meteorological Department further.
June, Some tropical cyclones often develop at the Northwestern Pacific and move pass the Philippines toward the South China Sea. Consequently, the prevailing southwestern monsoon over Thailand and the Gulf of Thailand will strengthen influencing Thailand to experience more rain, especially at coastal areas of the eastern part and the Southern Thailand (West Coast).
Remark:
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553) 
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of April 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab. 

Climatological Center,
Meteorological Development Bureau,
Thai Meteorological Department,
Ministry of Information and Communication Technology

Expected rain (millimeters) and rainy days (days) comparing to normal:
  April May June
Northern 
(Rainfall/Rainy days)
Slightly Below Normal 
(40 - 70 / 5 - 7)
Slightly Below Normal 
(140 - 180 / 13 - 16)
Near Normal 
(130 - 170 / 16 - 19)
Northeastern 
(Rainfall/Rainy days)
Slightly Below Normal 
(60 - 90 / 6 - 8)
Slightly Below Normal 
(150 - 190 / 13 - 16)
Near Normal 
(180 - 220 / 14 - 17)
Central 
(Rainfall/Rainy days)
Slightly Below Normal 
(50 - 80 / 4 - 6)
Slightly Below Normal 
(140 - 180 / 12 - 15)
Near Normal 
(130 - 170 / 14 - 17)
Eastern 
(Rainfall/Rainy days)
Below Normal 
(50 - 80 / 4 - 6)
Slightly Below Normal 
(190 - 230 / 13 - 16)
Near Normal 
(240 - 290 / 15 - 18)
Southern (East Coast) 
(Rainfall/Rainy days)
Below Normal 
(30 - 60 / 4 - 6)
Slightly Below Normal 
(110 - 150 / 12 - 15)
Near Normal 
(90 - 130 / 12 - 15)
Southern (West Coast) 
(Rainfall/Rainy days)
Below Normal 
(110 - 150 / 8 - 11)
Slightly Below Normal 
(250 - 300 / 17 - 20)
Near Normal 
(270 - 312 / 18 - 21)
Bangkok Metropolis and Vicinity 
(Rainfall/Rainy days)
Below Normal 
(50 - 80 / 4 - 6)
Slightly Below Normal 
(200 - 250 / 13 - 16)
Near Normal 
(130 - 170 / 13 - 16)
remark

Expected mean maximum and minimum temperature (C) comparing to normal:
  April May June
Northern 
Average max/min Temp.
Above Normal 
37 - 39 / 24 - 36
Above Normal 
35 - 37 / 24 - 26
Slightly Above Normal 
33 - 35 / 24 - 26
Northeastern 
Average max/min Temp.
Above Normal 
36 - 38 / 25 - 27
Above Normal 
35 - 37 / 25 - 27
Slightly Above Normal 
33 - 35 / 24 - 26
Central 
Average max/min Temp.
Above Normal 
37 - 39 / 26 - 28
Above Normal 
35 - 37 / 26 - 28
Slightly Above Normal 
34 - 36 / 25 - 27
Eastern 
Average max/min Temp.
Above Normal 
35 - 37 / 26 - 28
Above Normal 
34 - 36 / 26 - 28
Slightly Above Normal 
32 - 34 / 25 - 27
Southern (East Coast) 
Average max/min Temp.
Slightly Above Normal 
33 - 35 / 24 - 26
Slightly Above Normal 
33 - 35 / 24 - 26
Near Normal 
32 - 34 / 24 - 26
Southern (West Coast) 
Average max/min Temp.
Slightly Above Normal 
34 - 36 / 24 - 26
Slightly Above Normal 
32 - 34 / 24 - 26
Near Normal 
31 - 33 / 24 - 26
Bangkok Metropolis and Vicinity 
Average max/min Temp.
Above Normal 
35 - 37 / 26 - 28
Above Normal 
34 - 36 / 26 - 28
Slightly Above Normal 
33 - 35 / 26 - 28
Issued Date March 24, 2016
During March - May 2016
General Climate Characteristics
Upper Thailand (Northern, Northeastern, Central and Eastern parts of Thailand):

During March, high pressure air mass from China will still prevail over the upper portion of both of the northern and northeastern parts as well as southerly or southeasterly winds prevail over the Upper Thailand. These characteristics will influence the northern and northeastern parts to experience morning cool weather, especially at the upper portion of both parts. While during daytime, the Upper Thailand will face with sweltering weather commonly together with very hot weather at many areas on some days. Then during April, southerly or southeasterly winds will still prevail over the Upper Thailand almost all of this period including with some heat low pressure air mass cells cover over the Upper Thailand from time to time. As a result, the Upper Thailand will experience sweltering weather commonly along with very hot weather at many areas, especially during middle March until middle April. Maximum temperatures may reach as high as 43 44 C. However, some thunder rain will occur at many areas on some days helping to reduce some heat. About at the 1st half of May, being during a seasonal change phase, the weather disturbances will happen as thunder rain at many areas. Also, sweltering weather will occur generally and very hot weather appears at some areas too. Then during the 2nd half of May, the southwestern monsoon will prevail over the Andaman Sea, Thailand and the Gulf of Thailand. Additionally, a monsoon trough will place over central and eastern parts at some periods. These characteristics will influence the Upper Thailand to experience more rainfall. Moreover, wind waves in the upper portion of the Gulf of Thailand will be more active as 2 3 meters high.
The mean rain amount will be mostly slightly below normal while mean temperature will be above normal.

Southern Thailand

During March until late April, the easterly or southeasterly winds will still prevail over the Gulf of Thailand and the Southern Thailand causing the Southern Thailand still to experience little rain as isolated to widely scattered rainfall. Also, hot weather appears at many areas on some days whereas wind waves in the Gulf of Thailand and the Andaman Sea will be about 1 meter high. Afterward until May, the southwestern monsoon will begin to prevail over the Andaman Sea and the Southern Thailand rather more actively and continuously. This results in bringing about more rainfall at the Southern Thailand. Specifically, the western coast of the Southern Thailand will experience heavy to very heavy rain at some areas. Moreover, wind waves in the Andaman Sea will be more active as 2 3 meters high while those in the Gulf of Thailand will be about 1 meter high.
The mean rain amount will be slightly below normal while mean temperature will be slightly above normal.

Cautions
March and April: Some summer thunderstorms will appear often as thunderstorms, wind gusts, and maybe hails at some areas. Thus, some damages may occur at household buildings and agricultural crops. Then, the public should follow the weather forecast news of the Thai Meteorological Department closely further.
During late April until May: Possibly, some low pressure air mass cells may develop around the Andaman Sea. They may strengthen to become depressions, tropical storms and cyclones. Their movements are northerly toward easterly and may move to the western side of Thailand. For this reason, the western portion of both of the northern and central parts of Thailand and the Southern Thailand will experience more rainfall.
Remark:
Remarks: - Daily rainfall distribution (% of the area) criteria: Isolated: > 0 until < 20%
Widely scattered: >=20 until < 40% Scattered: >= 40 until < 60%
Almost widespread: >=60 until < 80% Widespread >= 80%
- Daily rainfall amount (millimeters) criteria: Light: > 0 until 10.0
Moderate: >=10.1 until <=35.0 Heavy: >=35.1 until <90
Very heavy: >= 90.1
- Daily minimum temperature criteria for the winter season:
Cool weather = 18.0 - 22.9 &#61616;C.
Moderately cold weather = 16.0 17.9 &#61616;C.
Cold weather = 8.0 - 15.9 &#61616; C.
Very cold weather = <= 7.9 &#61616; C.
- Daily maximum temperature criteria for the summer season:
Hot weather = 35.0 39.9 &#61616; C.
Very hot weather = >= 40.0 &#61616; C.
- Normal means average during the 30-year period (A.D. 1981 2010 or B.E. 2524 2553)
- These long range expectations are utilized by applying some climatic models and statistical methods, the public then should follow the daily weather news from the Thai Meteorological Department further.
- The next 3-month climate expectations will be at the last week of March 2016.
- Further enquiry of monthly climate, 3-month climate and seasonal forecasts can be preceded at Tel: 02-398-9929 or Fax: 02-383-8827.
- Please follow monthly climate, 3-month climate and seasonal forecasts at www.tmd.go.th/en/ at the climate tab.

Expected rain (millimeters) and rainy days (days) comparing to normal:
  March April May
Northern
(Rainfall/Rainy days)
Slightly Below Normal
(15 - 30 / 2 - 3)
Slightly Below Normal
(40 - 70 / 4 - 6)
Slightly Below Normal
(140 - 180 / 13 - 16)
Northeastern
(Rainfall/Rainy days)
Slightly Below Normal
(30 - 50 / 3 - 4)
Slightly Below Normal
(60 - 90 / 6 - 8)
Slightly Below Normal
(150 - 190 / 13 - 16)
Central
(Rainfall/Rainy days)
Slightly Below Normal
(20 - 40 / 3 - 4)
Slightly Below Normal
(50 - 80 / 4 - 6)
Slightly Below Normal
(140 - 180 / 12 - 15)
Eastern
(Rainfall/Rainy days)
Slightly Below Normal
(40 - 70 / 4 - 6)
Slightly Below Normal
(70 - 100 / 6 - 8)
Slightly Below Normal
(190 - 230 / 13 - 16)
Southern (East Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(40 - 70 / 4 - 6)
Slightly Below Normal
(50 - 80 / 6 - 8)
Slightly Below Normal
(110 - 150 / 12 - 15)
Southern (West Coast)
(Rainfall/Rainy days)
Slightly Below Normal
(60 - 90 / 6 - 8)
Slightly Below Normal
(130 - 170 / 9 - 12)
Slightly Below Normal
(150 - 300 / 17 - 20)
Bangkok Metropolis and Vicinity
(Rainfall/Rainy days)
Slightly Below Normal
(30 - 50 / 3 - 4)
Slightly Below Normal
(80 - 110 / 6 - 8)
Slightly Below Normal
(200 - 250 / 13 - 16)
remark

Expected mean maximum and minimum temperature (&degC) comparing to normal:
  March April May
Northern
Average max/min Temp.
Above Normal
36 - 38 / 21 - 23
Above Normal
37 - 39 / 24 - 36
Above Normal
35 - 37 / 24 - 26
Northeastern
Average max/min Temp.
Above Normal
35 - 37 / 23 - 25
Above Normal
36 - 38 / 25 - 27
Above Normal
35 - 37 / 25 - 27
Central
Average max/min Temp.
Above Normal
36 - 38 / 25 - 27
Above Normal
37 - 39 / 26 - 28
Above Normal
35 - 37 / 26 - 28
Eastern
Average max/min Temp.
Above Normal
34 - 36 / 25 - 27
Above Normal
35 - 37 / 26 - 28
Slightly Above Normal
34 - 36 / 26 - 28
Southern (East Coast)
Average max/min Temp.
Slightly Above Normal
32 - 34 / 24 - 26
Slightly Above Normal
33 - 35 / 25 - 27
Slightly Above Normal
35 - 37 / 24 - 26
Southern (West Coast)
Average max/min Temp.
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
34 - 36 / 24 - 26
Slightly Above Normal
32 - 34 / 24 - 26
Bangkok Metropolis and Vicinity
Average max/min Temp.
Above Normal
34 - 36 / 26 - 28
Above Normal
35 - 37 / 26 - 28
Above Normal
34 - 36 / 26 - 28
Issued Date February 25, 2016

 

 

2015 TMD Reports for Thailand in pdf format

2015 Annual Report in English

2015/2558 Annual Report in Thai

January 2015

February 2015

March 2015

April 2015

May 2015

June 2015

July 2015

August 2015

September 2015

October 2015

November 2015

December 2015

 

2015 Forecasts in pdf format

Three Month Forecast (January 2016 - March 2016) English Three Month Forecast (January 2016 - March 2016) Thai
Three Month Forecast (December 2015 - February 2016) English Three Month Forecast (December 2015 - February 2016) Thai
Winter Season Forecast 2015 English (Revised) Winter Season Forecast 2015 Thai(Revised)
Three Month Forecast (November 2015 - January 2016) English Three Month Forecast (November 2015 - January 2016) Thai
Winter Season Forecast 2015 English (Revised) Winter Season Forecast 2015 Thai(Revised)
Winter Season Forecast 2015 English Winter Season Forecast 2015 Thai
Three Monthly Forecast 2015 (September- November) English

Three Monthly Forecast 2015 (September- November) Thai

Three Monthly Forecast 2015 (August - October) English

Three Monthly Forecast 2015 (August - October) Thai

Rainy Season Forecast 2015  (Revised) English Rainy Season Forecast 2015  (Revised) Thai
Three Monthly Forecast 2015 (July - September) English Three Monthly Forecast 2015 (July - September) Thai
Rainy Season Forecast 2015  (Revised) English Rainy Season Forecast 2015  (Revised) Thai
Three Monthly Forecast (June 2015 - August 2015) English Three Monthly Forecast (June 2015 - August 2015) Thai
Rainy Season Forecast 2015  (Revised) English Rainy Season Forecast 2015  (Revised) Thai
Three Monthly Forecast (May 2015 - July 2015) English Three Monthly Forecast (May 2015 - July 2015) Thai
Rainy Season Forecast 2015 English Rainy Season Forecast 2015 English
Summer Forecast 2015 (Revised) English Summer Forecast 2015 (Revised) Thai
Three Monthly Forecast (April 2015 - June 2015) English Three Monthly Forecast (April 2015 - June 2015) Thai
Summer Forecast 2015 English Summer Forecast 2015 Thai
Three Monthly Forecast (March 2015 - May 2015) English

Three Monthly Forecast (March 2015 - May 2015) Thai

Three Monthly Forecast (January 2015 - March 2015) English

Three Monthly Forecast (January 2015 - March 2015) Thai

Three Monthly Forecast (December 2014 - February 2015) English Three Monthly Forecast (December 2014 - February 2015) Thai
Thai Winter Start English Thai Winter Start Thai
Winter 2014 Forecast (November 2014 - February 2015) English Winter 2014 Forecast (November 2014 - February 2015) Thai
Three Monthly Forecast (November 2014 - January 2015) English Three Monthly Forecast (November 2014 - January 2015) Thai

 

2014 TMD Reports for Thailand in pdf format

2014 Annual Report in English

2014/2557 Annual Report in Thai

January 2014

February 2014

March 2014

April 2014

May 2014

June 2014

July 2014

August 2014

September 2014

October 2014

November 2014

December 2014

 

2013 TMD Reports for Thailand in pdf format

2013 Annual Report in English

2013/2556 Annual Report in Thai

January 2013

February 2013

March 2013

April 2013

May 2013

June 2013

July 2013

August 2013

September 2013

October 2013

November 2013

December 2013

 

2014 Forecasts in pdf format

Three Monthly Forecast (January 2015 - March 2015) English

Three Monthly Forecast (January 2015 - March 2015) Thai

Three Monthly Forecast (December 2014 - February 2015) English Three Monthly Forecast (December 2014 - February 2015) Thai
Thai Winter Start English Thai Winter Start Thai
Winter 2014 Forecast (November 2014 - February 2015) English Winter 2014 Forecast (November 2014 - February 2015) Thai
Three Monthly Forecast (November 2014 - January 2015) English Three Monthly Forecast (November 2014 - January 2015) Thai
Three Monthly Forecast [October 2014 - December 2014] in English Three Monthly Forecast [October 2014 - December 2014] in Thai
Winter 2014 Forecast [October 2014- February 2015] in English Winter 2014 Forecast [October 2014- February 2015] in Thai
Three Monthly Forecast [September 2014 - November 2014] in English Three Monthly Forecast [September 2014 - November 2014] in Thai
Three Monthly Forecast [August 2014 - October 2014] in English Three Monthly Forecast [August 2014 - October 2014] in Thai
Rainy Season 2014 [May - October] in English (Aug) Rainy Season 2014 [May - October] in Thai (August)
Three Monthly Forecast [July 2014 - September 2014] in English Three Monthly Forecast [July 2014 - September 2014] in Thai
Rainy Season 2014 [May - October] in English (July) Rainy Season 2014 [May - October] in Thai (July)
The Onset of Thai Rainy Season 2014/2557(English) The Onset of Thai Rainy Season 2014/2557 (Thai)
Three Monthly Forecast [June 2014 - August 2014] in English(June) Three Monthly Forecast [June 2014 - August 2014] in Thai (June)
Rainy Season 2014 [May - October] in English (June) Rainy Season 2014 [May - October] in Thai (June)
Rainy Season 2014 [May - October] in English (May) Rainy Season 2014 [May - October] in Thai (May)
Three Monthly Forecast [June 2014 - August 2014] in English Three Monthly Forecast [June 2014 - August 2014] in Thai
Rainy Season 2014 [May - October] in English (April) Rainy Season 2014 [May - October] in Thai (April)
Three Monthly Forecast [May 2014 - July 2014] in English Three Monthly Forecast [May 2014 - July 2014] in Thai
Three Monthly Forecast [April 2014 - June 2014] in English Three Monthly Forecast [April 2014 - June 2014] in Thai
Summer 2014 Forecast [February 2014 - May 2014] in English (3) Summer 2014 Forecast [February 2014 - May 2014] in Thai (3)
Three Monthly Forecast [March 2014 - May 2014] in English Three Monthly Forecast [March 2014 - May 2014] in Thai
Summer 2014 Forecast [February 2014 - May 2014] in English (2) Summer 2014 Forecast [February 2014 - May 2014] in Thai (2)
Three Monthly Forecast [February 2014 - April 2014] in English (2) Three Monthly Forecast [February 2014 - April 2014] in Thai (2)
Summer 2014 Forecast [February 2014 - May 2014] in English (1) Summer 2014 Forecast [February 2014 - May 2014] in Thai (1)
Three Monthly Forecast [February 2014 - April 2014] in English (1) Three Monthly Forecast [February 2014 - May 2014] in Thai (1)
Three Monthly Forecast [January 2014 - March 2014] in English Three Monthly Forecast [January 2014 - March 2014] in Thai
Winter 2013 Forecast [January 2014 - February 2014] in English Winter 2013 Forecast [January 2014 - February 2014] in Thai

 

2013 Forecasts in pdf format

Winter 2013 Forecast [December 2013 - February 2014] in English Winter 2013 Forecast [December 2013 - February 2014] in Thai
Three Monthly Forecast [December 2013 - February 2014] in English 2 Three Monthly Forecast [December 2013 - February 2014] in Thai
Three Monthly Forecast [December 2013 - February 2014] in English 1 Not on TMD Website
Three Monthly Forecast [November 2013 - January 2014] in English Three Monthly Forecast [November 2013 - January 2014] in Thai
Winter 2013 Forecast [October 2013 - February 2014] in English Winter 2013 Forecast [October 2013 - February 2014] in Thai
Three Monthly Forecast [October - December 2013] in English Three Monthly Forecast [October - December 2013] in Thai
Three Monthly Forecast [September - November 2013] in English Three Monthly Forecast [September - November 2013] in Thai
Three Monthly Forecast [August - October 2013] in English Three Monthly Forecast [August - October 2013] in Thai
Three Monthly Forecast [July till September 2013] in English Three Monthly Forecast [July till September 2013] in Thai
Three Monthly Forecast [June till August 2013] in English. Three Monthly Forecast [June till August 2013] in Thai.
Rainy Season 2013 Forecasts (3)[July till mid-October 2013] in English Rainy Season 2013 Forecasts(3) [July till mid-October 2013] in Thai
Rainy Season 2013 Forecasts (2)[June till mid-October 2013] in English Rainy Season 2013 Forecasts(2) [June till mid-October 2013] in Thai
Rainy Season 2013 Forecasts (1)[May till October 2013] in English Rainy Season 2013 Forecasts(1)[May till October 2013] in Thai
Three Monthly Forecast [May till July 2013] in English Three Monthly Forecast [May till July 2013] in English
Three Monthly Forecast [April till June 2013] in English Three Monthly Forecast [April till June 2013] in Thai
Three Monthly Forecast [March till May 2013]  in English Three Monthly Forecast [March till May 2013]  in Thai

Summer 2013 Forecast [Febuary till May 2013]  in  English

Summer 2013 Forecast [Febuary till May 2013]  in  Thai

Three Monthly Forecast [February -April 2013] in English Three Monthly Forecast [February -April 2013] in Thai

Three Monthly Forecast [January - March 2013] in English

Three Monthly Forecast [January - March 2013] in Thai

Three Monthly Forecast [December  2012 - February 2013] in English Three Monthly Forecast [December  2012 - February 2013] in Thai
Three Monthly Forecast [November  2012 - January 2013] in English Three Monthly Forecast [November  2012 - January 2013] in Thai
Winter 2012 Forecast [October 2012 - February 2013] in English Winter 2012 Forecast [October 2012 - February 2013] in Thai

 

2013 TMD Reports for Thailand in pdf format

2013 Annual Report in English

2013/2556 Annual Report in Thai

January 2013

February 2013

March 2013

April 2013

May 2013

June 2013

July 2013

August 2013

September 2013

October 2013

November 2013

December 2013

 

Earlier Forecasts in pdf format

2011 Flood Paper from Thailand Meteorological Department

Three Monthly Forecast [October  -  December 2012] in English Three Monthly Forecast [October  -  December 2012] in Thai
Three Monthly Forecast [September - November 2012] in English

Three Monthly Forecast [September  - November 2012] in Thai

Three Monthly Forecast [August - October 2012] in English Three Monthly Forecast [August - October 2012] in Thai
Three Monthly Forecast [July - September 2012] in English Three Monthly Forecast [July - September 2012] in Thai
Three Monthly Forecast [June -  August 2012] in English Three Monthly Forecast [June -  August 2012] in Thai
Three Monthly Forecast [May- July 2012] in English Three Monthly Forecast [May- July 2012] in Thai
Rainy Season 2012 Forecasts [May - October 2012] in English 2 Rainy Season 2012 Forecasts [May - October 2012] in Thai 2
Rainy Season 2012 Forecasts [May - October 2012] in English 1 Rainy Season 2012 Forecasts [May - October 2012] in Thai 1
Three Monthly Forecast [April -June 2012] in English Three Monthly Forecast [April -June 2012] in Thai
Three Monthly Forecast [March -May 2012] in English Three Monthly Forecast [March-May 2012] in Thai

Summer 2012 Forecast [Febuary till May 2012]  in  English

Summer 2012 Forecast [Febuary till May 2012]  in  Thai

Three Monthly Forecast [February -April 2012] in English Three Monthly Forecast [February -April 2012] in Thai

Three Monthly Forecast [January - March 2012] in English

Three Monthly Forecast [January - March 2012] in Thai

Three Monthly Forecast [December 2011 - February 2012} in English Three Monthly Forecast [December 2011 - February 2012} in Thai
Three Monthly Forecast [November 2011 - January 2012] in English Three Monthly Forecast [November 2011 - January 2012] in Thai
Three Monthly Forecast [October  -  December 2011] in English Three Monthly Forecast [October  -  December 2011] in Thai
Winter 2011 Forecast [October 2011 -  February 2012] in English Winter 2011 Forecast [October 2011 -  February 2012] in Thai
Three Monthly Forecast [September - November 2011] in English

Three Monthly Forecast [September  - November 2011] in Thai

Three Monthly Forecast [August - October 2011] in English

Three Monthly Forecast [August - October 2011] in Thai

Three Monthly Forecast [July - September 2011] in English Three Monthly Forecast [July - September 2011] in Thai
Three Monthly Forecast [June - August 2011] in English Three Monthly Forecast [June - August 2011] in Thai
Three Monthly Forecast [May - July 2011] in English Three Monthly Forecast [May - July 2011] in Thai
Rainy Season Forecast [May - October 2011] in English Rainy Season Forecast [May - October 2011] in Thai

Three Monthly Forecast [April - June  2011] in English

Three Monthly Forecast [April - June  2011] in Thai

Three Monthly Forecast [March - May 2011 in English Three Monthly Forecast [March - May 2011 in Thai
Three Monthly Forecast [February - April 2011 in English Three Monthly Forecast [February - April 2011 in Thai
Summer 2011 Forecast [February to May] in English Summer 2011 Forecast [February to May] in English

Three Monthly Forecast [January - March 2011] in English

Three Monthly Forecast [January - March 2011] in Thai

Winter 2010 Forecast [October 2010 till February 2011] in English

Winter 2010 Forecast [October 2010 till February 2011] in Thai

Three Monthly Forecast [November - January 2011] in English

Three Monthly Forecast [November - January 2011] in Thai

Three Monthly Forecast [September - November 2010] in English

Three Monthly Forecast [September - November 2010] in Thai

Three Monthly Forecast [June 2010-August 2010] in English Three Monthly Forecast [June 2010-August 2010] in Thai
Rainy Season Forecast [May - October 2010] in English Rainy Season Forecast [May - October 2553] in Thai
Three Monthly Forecast [May 2010-July 2010] in English Three Monthly Forecast [May 2010-July 2010] in Thai
Three Monthly Forecast [April 2010-June 2010] in English Three Monthly Forecast [April 2010-June 2010] in Thai
Three Monthly Forecast [March 2010-May 2010] in English Three Monthly Forecast [March 2010-May 2010] in Thai
Three Monthly Forecast [December 2009 - February 2010] in English Three Monthly Forecast [December 2009 - February 2010] in Thai
Three Monthly Forecast [October - December 2009] in English Three Monthly Forecast [October - December 2009] in Thai
Three Monthly Forecast [September - November 2009] in English

Three Monthly Forecast [September - November 2009] in Thai

Three Monthly Forecast [August - October] in English Three Monthly Forecast [August - October] in Thai
Three Monthly Forecast [June - August] in English Three Monthly Forecast [June - August] in Thai
Three Monthly Forecast [May 1, 2009 - Jul 1, 2009] in English Three Monthly Forecast [May 1, 2009 - Jul 1, 2009] in Thai
Rainy Season Forecast [May - October 2009] in English Rainy Season Forecast [May - October 2552] in Thai
Three Monthly Forecast [Apr 1, 2009 - June 30,2009] in English Three Monthly Forecast [Apr 1, 2009 - June 30,2009] in Thai
Summer 2009 Forecast [mid-February to Mid-May] in English Summer 2009 Forecast [mid-February to Mid-May] in Thai
Three Monthly Forecast [Mar 1, 2009 - May 1, 2009] in English Three Monthly Forecast [Mar 1, 2009 - May 1, 2009] in Thai

 

Earlier TMD Reports for Thailand in pdf format

2012 Annual Report 1

2012 Annual Report 2

2555/2012 Annual Report in Thai

All 12 months 2012 zipped

January 2012

February 2012

March 2012

April 2012

May 2012

June 2012

July 2012

August 2012

September 2012

October 2012

November 2012

December 2012

2011 Annual Report

2554/2011 Annual Report in Thai

All 12 months 2011 zipped

 

January 2011

February 2011

March 2011

April 2011

May 2011

June 2011

July 2011

August 2011

September 2011

October 2011

November 2011

December 2011

2010 Annual Report

2553/2010 Annual Report in Thai

All 12 months 2011 zipped

 

January 2010

February 2010

March 2010

April 2010

May 2010

June 2010

July 2010

August 2010

September 2010

October 2010

November 2010

December 2010

2009 Annual Report

2552/2009 Annual Report in Thai

All 12 months 2009 zipped

 

2549/2006 Annual Report in Thai 2548/2005 Annual Report in Thai 2547/2004 Annual Report in Thai

 

January 2009

February 2009

March 2009

April 2009

May 2009

June 2009

July 2009

August 2009

September 2009

October 2009

November 2009

December 2009

2008 Annual Report

2551/2008 Annual Report in Thai

All 12 months 2008 zipped

 

January 2008

February 2008

March 2008

April 2008

May 2008

June 2008

July 2008

August 2008

September 2008

October 2008

November 2008

December 2008

2007 Annual Report

2550/2007 Annual Report in Thai

 

 

2006 Annual Report

2549/2006 Annual Report in Thai

 

 

 

2548/2005 Annual Report in Thai

 

 

 

2547/2004 Annual Report in Thai