Daily Weather Forecast
16 December 2025Announcement Date 16 December 2025
Forecast Additional Video Formats
General Situation
16 Dec 2025
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Weather Map
The rather strong northeast monsoon prevails over the Gulf, the South and the Andaman Sea with isolated heavy rains in the lower South. People should beware of heavy to very heavy rains and accumulations that cause flash flood and overflows, especially along the waterways near foothills and lowlands. 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 likely about 2 meters high and above 2 meters high in thundershowers. All ships in the Gulf and the Andaman Sea should proceed with caution and keep off thundershowers, small boats in the lower Gulf keep ashore until 16 December 2025. The high-pressure system from China covers the upper country and the South China Sea with a decrease in temperature by 1-2 °C and strong wind. People in the upper country should keep healthy due to cold weather.
Bangkok Metropolis and Vicinity Forecast
06:00 Today - 06:00 TomorrowMorning cool. Minimum temperature 22-23 °C. Maximum temperature 32-33 °C. Northeasterly winds 10-25 km/hr.
Announcement Date 16 December 2025
Weather Province Additional
7 days Weather Forecast
Weather Outlook During 15 - 21 Dec 2025Forecast
During 15 – 16 Dec, another high-pressure system from China covers upper Thailand with a slightly decrease in temperature. For the South, the northeast monsoon prevailing over the Gulf and the South strengthen with heavy to very heavy rains 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. During 17 – 18 Dec, the high-pressure system covering upper Thailand will weaken while the westerly trough will move pass the North and the Northeast. An increase in temperatures with morning fog are likely in the upper country while morning cool to cold is possible in the North and the Northeast and isolated rains. During 19 – 21 Dec, another moderate high-pressure system from China will extend to upper Thailand while the upper westerly wind covers the North and the Northeast. The upper Thailand cool to cold weather and a decrease in temperature in the whole areas. Isolated frost occurs in the North. During 17 – 21 Dec, for the south, the northeast monsoon prevailing over the Gulf and the South will weaken with isolated heavy rains in the lower South. The wind and waves 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. In the Andaman Sea, the waves are expected about 1 meter high, above 1 meter high offshore and above 2 meters high in thundershowers.
Caution
People in the upper country should keep healthy due to variable weathers. People in the upper country should beware of thundershowers and all farmers should prevent for crop's damage. throughout the period.
During 15 – 16 Dec, 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 throughout the period, small boats in the lower Gulf keep ashore.
Announcement Date 15 Dec 2025
7 day Weather Summary
08 December 2025 - 14 December 2025Forecast
The moderate high-pressure area covered upper Thailand in the first half of the week before weakened. Another high-pressure area from China extended its ridge to cover upper Thailand and the South China Sea on the last day of the week. In addition, the easterly and southeasterly winds prevailed over upper Thailand in the second half of the week accompanied with the passage of the westerly trough from Myanmar through the upper northern region and upper Laos on 13 Dec. These conditions caused cool weather in general over upper Thailand, especially cold weather in some areas of the northern and northeastern regions. Rainfall was reported mainly in the second half of the week. For the southern region, the moderate northeast monsoon which prevailed over the Gulf of Thailand, the southern region and the Andaman Sea was strengthened on the last day of the week. Moreover, the low-pressure cell which covered the tip of the Indochina Peninsular moved to cover the lower Gulf of Thailand and lower southern region during 11-12 Dec., resulting in abundant rainfall in southern region in the second half of the week.
Announcement Date 15 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