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Meteorological Department Warns of Heavy Rain in Some Areas in Thailand Risk of Flash Floods and Flash Flooding

Local02 Aug 2026 09:30 GMT+7

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Meteorological Department Warns of Heavy Rain in Some Areas in Thailand Risk of Flash Floods and Flash Flooding

"Meteorological Department" The 24-hour weather forecast indicates that Thailand will continue to have "heavy rain in some areas" which may lead to flash floods and flash flooding.


2 Aug 2026 GMT+7Meteorological DepartmentThe 24-hour weather forecast for Thailand indicates continued heavy rain in some areas due to the monsoon trough passing through the upper northern region and northern Laos, combined with a moderate southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand. The public is advised to be cautious of heavy and accumulated rainfall that may cause flash floods and flash flooding, especially in foothill areas near waterways and lowlands.

Waves in the Andaman Sea and the Gulf of Thailand are moderate, with the upper Andaman Sea experiencing waves 1-2 meters high, while the lower Andaman Sea and the Gulf of Thailand have waves about 1 meter high. In areas with thunderstorms, waves may exceed 2 meters. Fishermen are advised to navigate cautiously and avoid sailing in areas with thunderstorms.

Weather forecast for Thailand from 06:00 today to 06:00 tomorrow

  • Northern region

Thunderstorms cover 70% of the area with heavy rain in some places including Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Phayao, Nan, Tak, Kamphaeng Phet, Uttaradit, and Phitsanulok provinces. Minimum temperatures range from 23-28°C, maximum 30-36°C, with southwest winds at 10-20 km/h.

  • Northeastern region

Thunderstorms cover 60% of the area with heavy rain in some places including Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, and Mukdahan provinces. Minimum temperatures range from 23-24°C, maximum 30-35°C, with southwest winds at 10-20 km/h.

  • Central region

Thunderstorms cover 60% of the area with heavy rain in some places including Nakhon Sawan, Lopburi, Saraburi, Kanchanaburi, and Ratchaburi provinces. Minimum temperatures range from 23-25°C, maximum 34-35°C, with southwest winds at 10-20 km/h.

  • Eastern region

Thunderstorms cover 60% of the area with heavy rain in some places including Nakhon Nayok, Prachinburi, Chanthaburi, and Trat provinces. Minimum temperatures range from 24-26°C, maximum 31-34°C, with southwest winds at 15-30 km/h. Seas have waves about 1 meter high, with waves over 2 meters in areas experiencing thunderstorms.

  • Southern region (east coast)

Thunderstorms cover 40% of the area, mainly in Prachuap Khiri Khan, Chumphon, Surat Thani, Yala, and Narathiwat provinces. Minimum temperatures range from 23-26°C, maximum 33-36°C, with southwest winds at 15-30 km/h. Seas have waves about 1 meter high, with waves over 2 meters in areas experiencing thunderstorms.

  • Southern region (west coast)

Thunderstorms cover 60% of the area with heavy rain in some places including Ranong, Phang Nga, and Phuket provinces. Minimum temperatures range from 23-26°C, maximum 32-36°C. From Phang Nga northward: southwest winds at 15-35 km/h, seas with waves 1-2 meters high, and waves over 2 meters in thunderstorm areas. From Phuket southward: southwest winds at 15-30 km/h, seas with waves about 1 meter high, and waves over 2 meters in thunderstorm areas.

  • Bangkok and vicinity

Thunderstorms cover 60% of the area. Minimum temperatures range from 25-27°C, maximum 33-35°C, with southwest winds at 10-20 km/h.