Daily Weather Forecast
21 November 2025Announcement Date 21 November 2025
Forecast Additional Video Formats
General Situation
21 Nov 2025
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Weather Map
The strong high-pressure system from China extend to the upper South. Morning cool to cold and a decrease in temperature with strong winds are forecast in the upper country. A decrease in temperature by 1-2 °C are forecast in the North and the Northeast. People in the upper country should keep healthy due to cold weather and strong wind and beware of fire due to the dry air and strong wind. Farmers should prevent for crop damage.
The rather strong northeast monsoon prevailing over the Gulf, the South and the upper Andaman Sea while low pressure cover the lower South with scattered heavy rains and isolated very heavy rains in the South. The rather strong wind force the waves in the Gulf are expected to be 2-3 meters high and above 3 meters high in thundershowers.
The waves in the upper Andaman Sea are about 2 meters high, 2-3 meters offshore and a bove 3 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers. Small boats in the Gulf should keep ashore.
Bangkok Metropolis and Vicinity Forecast
06:00 Today - 06:00 TomorrowMorning cool with strong. Minimum temperature: 20–22 °C Maximum temperature: 28-31 °C Northeasterly winds 10–30 km/hr.
Announcement Date 21 November 2025
Weather Province Additional
7 days Weather Forecast
During 20 – 26 November 2025Forecast
During 20 – 22 Nov, the strong high pressure system from China extends to the upper South and the South China Sea with a decrease in temperature and strong winds. A decrease in temperature by 2 – 3 °C are forecast in the North, 1 – 3 °C are forecast in the Northeast the Central including Bangkok Metropolitan Region and the East. During 23 – 25 Nov, the high-pressure system from China covering the upper Thailand and the South China Sea is weakening with an increase in temperature and morning fog in the upper country. Cool to cold still be in the North and the Northeast. After that, another strong high pressure system from China will extend to upper Thailand and the South China Sea with a decrease in temperature and strong winds. For the South, the strengthening northeast monsoon will prevail over the upper Gulf and the upper South while the low pressure cell covers the South with more rains and isolated heavy to very heavy rains in the South. The wind and waves in the Gulf and the Andaman Sea offshore will strengthening to 2 - 3 meters high and above 3 meters high in thundershowers.
Caution
During 20 – 22 Nov, people in the upper country should keep healthy due to cold weather and strong wind and beware of fire due to the dry air and strong wind. Farmers should prevent for crop damage.
People in ths South should beware of heavy to very heavy rains and accumulation that may cause flash floods 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 Gulf and offshore of the Andaman Sea should keep ashore throughout the period.
Announcement Date 20 Nov 2025
7 day Weather Summary
10 November 2025 - 16 November 2025Forecast
The weak high-pressure area covered the upper northern and upper northeastern regions in the first half of the week while another moderate high-pressure area from China extended its ridge to cover upper Thailand in the second half of the week. Meanwhile, the easterly and southeasterly winds prevailed over the lower northeastern, eastern and lower central regions in the second half of the week. These conditions caused temperature dropped in the upper Thailand, cool weather in most areas in the second half of the week, with rainfall mainly in the central and eastern regions in the first half of the week. For the southern region, the westerly and northwesterly winds blew over the Andaman Sea, southern region and the Gulf of Thailand in the first half of the week then northeast monsoon prevailed over the Gulf of Thailand, southern region and the Andaman Sea in the second half of the week resulting in rainfall almost the week, particularly, increasing in rainfall in the east coast of southern region in the second half of the week.
Announcement Date 17 Nov 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