Severe Weather Alert For 47 Provinces Across Thailand
Thailand's meteorological department has issued a severe weather alert for 47 provinces through July 2, 2025, with heavy to very heavy rainfall expected to trigger flash floods and mudslides, particularly in the eastern and western gulf reg
The Thai Meteorological Department has named 47 provinces in a weather alert for severe downpours affecting 70 percent of those areas. Bangkok and its surrounding provinces face the same risks of dangerous heavy to very heavy rainfall and flooding. As of July 1, 2025, the meteorological department forecasts heavy rain in scattered areas and very heavy rainfall in parts of the eastern and western gulf regions during the next 24 hours. This is due to strong southwest monsoon winds over the Andaman Sea, Thailand, and the Gulf of Thailand, combined with a monsoon trough passing over northern Thailand and upper Laos entering a low-pressure system in upper Vietnam.
Public warnings emphasize the dangers of heavy to very heavy rain and accumulated rainfall that could trigger sudden flash floods and mudslides, particularly in foothill areas near water channels and low-lying zones. The upper Andaman Sea faces moderate to strong winds with waves 2-3 meters high, exceeding 3 meters during thunderstorms. The lower Andaman Sea and upper Gulf of Thailand have waves around 2 meters, exceeding 2 meters in thunderstorm areas. Fishermen are urged to exercise caution and avoid navigating through thunderstorm zones, while small boats in the upper Andaman are advised not to venture out.
Detailed regional forecasts (6:00 AM today to 6:00 AM tomorrow):
Northern Region: 70 percent thunderstorms with heavy rain in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Phitsanulok, Phetchabun, and Tak provinces. Low 23-26°C, high 30-34°C. Southwest winds 10-20 km/h.
Northeastern Region: 80 percent thunderstorms with heavy rain in Loei, Nong Bua Lamphu, Udon Thani, Nong Khai, Bueng Kan, Sakon Nakhon, Nakhon Phanom, Nakhon Ratchasima, Buriram, Surin, Khon Kaen, Kalasin, Mukdahan, Maha Sarakham, Roi Et, Yasothon, Amnat Charoen, Sisaket, and Ubon Ratchathani. Low 23-26°C, high 32-34°C. Southwest winds 10-20 km/h.
Central Region: 60 percent thunderstorms with heavy rain in Kanchanaburi and Ratchaburi. Low 24-27°C, high 32-35°C. Southwest winds 10-25 km/h.
Eastern Region: 70 percent thunderstorms with heavy to very heavy rain in Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Chon Buri, Rayong, Chanthaburi, and Trat. Low 24-26°C, high 32-34°C. Southwest winds 20-35 km/h. Sea waves around 2 meters, exceeding 2 meters during storms.
Southern Region (East Coast): 60 percent thunderstorms with heavy rain in Phetchaburi, Prachuap Khiri Khan, Chumphon, and Surat Thani. Low 23-26°C, high 32-35°C. From Surat Thani northward: southwest winds 20-35 km/h, waves 1-2 meters offshore and exceeding 2 meters during thunderstorms. From Nakhon Si Thammarat southward: southwest winds 15-30 km/h, waves around 1 meter, exceeding 2 meters during storms.
Southern Region (West Coast): 80 percent thunderstorms with heavy to very heavy rain in Ranong, Phang Nga, Phuket, Krabi, Trang, and Satun provinces.
