Daily Weather Forecast
31 July 2025Announcement Date 31 July 2025
Forecast Additional Video Formats
General Situation
31 Jul 2025
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Weather Map
The low-pressure cell covers upper Vietnam with the moderate southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf will weaken. Isolated rains is likely over the country while isolated heavy rain are possible in the North and the upper Northeast. People in these areas should beware of heavy rain and accumulation.
The wind and waves in the Andaman Sea and the Gulf will weaken. The waves in the Andaman Sea are expected 1-2 meters high and above 2 meters high in thundershowers. In the Gulf are expected about 1 meter high, 1-2 meters offshore and above 2 meters high in thundershowers. All ships in the Andaman Sea and the Gulf should proceed with caution and keep off thundershowers.
Bangkok Metropolis and Vicinity Forecast
06:00 Today - 06:00 TomorrowIsolated thundershowers. Minimum temperature 27-28 °C Maximum temperature 33-35 °C Southwesterly winds 10-20 km/hr.
Announcement Date 31 July 2025
Weather Province Additional
7 days Weather Forecast
Weather Outlook During 31 Jul – 6 Aug 2025Forecast
During 31 Jul – 4 Aug, the low pressure cell covers upper Vietnam. Less rains are likely in the country. During 5 – 6 Jul, the monsoon trough lie across the upper north and the upper Laos into the low-pressure covers the upper Vietnam. More rains and isolated heavy rains are possible in the upper North and the upper Northeast. The southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf troughout the period. The moderate wind and wave in the upper Andaman Sea are expected 1 – 2 meters high. In the lower Andaman Sea and the upper Gulf, the wave are expected about 1 meter high and above 2 meters high in thundershowers troughout the period.
Caution
During 5 – 6 Aug, people in the North and the upper Northeast should beware of heavy rains. All ships in the Andaman Sea and the Gulf should proceed with caution and keep off thundershowers throughout the period.
Announcement Date 31 Jul 2025
7 day Weather Summary
21 July 2025 - 27 July 2025Forecast
The strong southwest monsoon prevailed over the Andaman Sea, Thailand, and the Gulf of Thailand in the first half of the week before weakening. Additionally, the monsoon trough lay across upper northern Thailand and upper Laos during 22-23 Jul. and extended toward a low-pressure cell over upper Vietnam on 24 and 27 Jul. This low-pressure cell persisted over upper Vietnam for most of the week. Moreover, the tropical storm “WIPHA (2506)” which initially made landfall in southern China, moved into the Gulf of Tonkin and made landfall again over Thai Binh, upper Vietnam at 10:00 a.m. on 22 Jul. The storm subsequently weakened into a tropical depression and later into a strong low-pressure cell over Laos, before advancing to cover upper northern Thailand and upper Myanmar. These conditions brought rainfall across wide areas of upper Thailand almost the entire week, particularly in the northern region, where heavy to very heavy rainfall was observed in several areas, leading to prolonged flooding in various provinces. In the southern region, rainfall was mainly observed in the upper portion.
Announcement Date 28 Jul 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
