Thailand's Meteorological Department warns of severe weather affecting 43 provinces, with heavy rainfall and thunderstorms expected nationwide through May 15, 2025, particularly in northern and western regions. Flash flooding poses a significant risk in low-lying and foothill areas, prompting advisories for farmers to protect crops and livestock. Fishermen are cautioned to avoid rough seas with waves exceeding 2 meters in thunderstorm zones across both the Andaman Sea and Gulf of Thailand.
On May 14, 2025, the Thai Meteorological Department forecasts increased rainfall nationwide over the next 24 hours, with heavy downpours expected especially on the western side due to strengthening southwest winds across the Andaman Sea, Thailand, and the Gulf of Thailand. The public is warned to prepare for thunderstorms, heavy rainfall, and accumulated precipitation that may trigger flash floods and flash flooding, particularly in foothill areas near waterways and low-lying regions. Farmers should reinforce fruit trees and prepare protective measures for crops and livestock, while maintaining health awareness during changing weather conditions.
Upper Andaman Sea waves are moderate, approximately 2 meters high, with heights exceeding 2 meters in thunderstorm areas. Fishermen are advised to navigate carefully and avoid thunderstorm zones.
24-hour weather forecast from 6 PM today to 6 PM tomorrow:
Northern Region: 70% chance of thunderstorms with heavy rain in some areas, particularly in Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Nan, Phayao, Uttaradit, Phichit, Phetchabun, Tak, and Kamphaeng Phet provinces. Low 21-26°C, high 31-36°C. Southwest winds 10-15 km/h.
Northeastern Region: 60% chance of thunderstorms with heavy rain in some areas around Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Nakhon Phanom, Chaiyaphum, and Nakhon Ratchasima. Low 23-26°C, high 33-35°C. Southwest winds 10-20 km/h.
Central Region: 60% chance of thunderstorms with heavy rain in Uthai Thani, Kanchanaburi, Ratchaburi, and Nakhon Pathom. Low 24-26°C, high 35-36°C. Southwest winds 10-20 km/h.
Eastern Region: 60% chance of thunderstorms with heavy rain in Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Rayong, Chanthaburi, and Trat. Low 23-25°C, high 33-36°C. Southwest winds 15-35 km/h. Sea waves 1-2 meters; over 2 meters in thunderstorm areas.
Southern Region (East Coast): 60% chance of thunderstorms with heavy rain in Chumphon, Surat Thani, Nakhon Si Thammarat, Songkhla, Phatthalung, Pattani, Yala, and Narathiwat. Low 23-25°C, high 33-36°C. Southwest winds 15-30 km/h. Sea waves approximately 1 meter; over 2 meters in thunderstorm areas.
Southern Region (West Coast): 70% chance of thunderstorms with heavy rain in Ranong, Phang Nga, Phuket, Krabi, Trang, and Satun. Low 23-25°C, high 33-36°C. From Phang Nga northward: southwest winds 20-35 km/h, sea waves approximately 2 meters; over 2 meters in thunderstorm areas. From Phuket southward: southwest winds 15-30 km/h, sea waves approximately 1 meter; over 2 meters in thunderstorm areas.
Bangkok and Vicinity: 60% chance of thunderstorms. Low 25-27°C, high above 36°C.