Daily Weather Forecast
13 December 2025Announcement Date 13 December 2025
Forecast Additional Video Formats
General Situation
13 Dec 2025
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Weather Map
The low-pressure cell covers the lower Andaman Sea while the moderate northeast monsoon prevails over the upper Gulf, the upper South and the upper Andaman Sea. Thundershowers are forecast in the South. The moderate wind and wave in the lower Gulf are expected about 2 meters high, 1-2 meters high in the upper Gulf and above 2 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers. The easterly wind prevails over the upper country while the westerly trough from Myanmar will move pass the upper North of Thailand and upper Laos with isolated thundershowers/rains in the upper country. At the same time, another high-pressure system from China extend to southern of China, is expected to cover the Northeast of Thailand and the South China Sea by tomorrow (14 Dec 2025). After that, it is forecast to cover the rest regions except for the South by next period. People in the upper country should keep healthy due to changeable weather and beware of thundershowers. All farmers should prevent for crop's damage.
Bangkok Metropolis and Vicinity Forecast
06:00 Today - 06:00 TomorrowMorning cool. Isolated light rain. Minimum temperature 21-23 °C. Maximum temperature 30-33 °C. Easterly winds 10–20 km/hr.
Announcement Date 13 December 2025
Weather Province Additional
7 days Weather Forecast
Weather Outlook During 12 - 18 Dec 2025Forecast
During 12 – 13 Dec, the moderate high-pressure system covering upper Thailand will weaken. An increase in temperatures with morning fog are likely in the upper country while morning cool to cold is possible in the upper North and the upper Northeast regions. At the same time, the easterly wind will bring the moisture to upper Thailand with isolated rains/thundershowers in the upper country. During 14 – 16 Dec, another high-pressure system from China will extend to upper Thailand with a decrease in temperature and strong wind. A decrease in temperature by 3 – 5 °C is likely in the Northeast while a decrease in temperature by 2 – 4 °C is likely in the North, the Central and the East regions. During 17 – 18 Dec, the moderate high-pressure system covering upper Thailand will weaken. An increase in temperatures with morning fog are likely in the upper country while morning cool to cold is possible in the upper country. For the South, during 12 – 13 Dec, the low-pressure cell covers the lower South with more rains and scattered heavy rains to isolated very heavy rains in the South. During 14 – 18 Dec, the northeast monsoon prevailing over the Gulf and the South will strengthening with continuous rainfalls in the South. The rather strong wind forces the waves in the lower Gulf up to be 2 – 3 meters high and above 3 meters high in thundershowers. In the upper Gulf, the waves are expected about 2 meters high and above 2 meters high in thundershowers. In the Andaman Sea, the waves are expected 1 - 2 meters high and above 2 meters high in thundershowers and offshore.
Caution
People in the upper country should keep healthy due to variable weathers throughout the period.
During 12 – 16 Dec, people in the upper country should beware of thundershowers and all farmers should prevent for crop's damage. People in the South should beware of heavy to very heavy rains and accumulated rains that may cause flash flood and overflows, especially along the waterways near foothills and lowlands. All ships in the Gulf and the Andaman Sea should proceed with caution and keep off thundershowers.
Announcement Date 12 Dec 2025
7 day Weather Summary
05 December 2025 - 11 December 2025Forecast
The moderate high-pressure area covered upper Thailand and the South China Sea at the beginning and the middle of the period then weakened. In addition, the easterly wind prevailed over Thailand at the beginning of the period after that the northeast monsoon prevailed over the Gulf of Thailand, the south part and the Andaman Sea at the middle and the end of the period. Moreover the low pressure cell covered the Gulf of Thailand and the southern part on the last day of the period. These conditions caused cool weather nearly the whole area over upper Thailand, especially cold weather in northern and northeastern parts mainly in the second half of the period. Rainfall was mainly observed on the first day of the period and at the end of the period. For the southern region, rainfall was reported almost the period.
Announcement Date 12 Dec 2025
Previous
Monthly Weather Forecast
November 2022Forecast
Upper Thailand will be more cold especially the northern and northeastern regions with some thunderstorms on certain days. For the mountain tops, mountain peaks, and mountain ranges, the weather is generally cold. This is because The high pressure area from China will extend to cover the North and Northeast periodically. It will be mostly moderate power. the southern part It continues to rain heavily. especially the east coast from Chumphon down There are still thunderstorms in 60 - 80 percent of the area with heavy rain in many areas and very heavy in some places.This will cause flash floods and flash floods, as well as overflowing riverbanks in some places. For wind waves in the Gulf of Thailand will be strong. In some periods, there will be waves 2 - 4 meters high, while the Andaman Sea will have 1-2 meters high because the northeast monsoon still prevails over the Gulf of Thailand and the South. It will have strength from time to time. In addition, there will be a monsoon trough that lies across the central South in some periods. In addition, in some periods there will be an active low pressure cell moving closer. and has a high chance of moving through the southern region
Caution
In summary, this month, the total rainfall in the northern and northeastern regions is expected to be 10% less than normal, and the central and eastern regions are close to normal. The southern region is 10 percent above normal, while the average landscape is still slightly above normal.
Announcement Date 01 November 2022