Thailand faces widespread thunderstorms Saturday with heavy rain expected across the northern and southern regions; Bangkok will see afternoon showers with waves exceeding 2 meters possible in storm areas.
At 17:00 on May 24, 2025, the Thai Meteorological Department issued a 24-hour weather forecast warning that Thailand will continue to experience thunderstorms with heavy rain in some areas of the southern region due to a moderate southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand. The public is urged to be cautious of dangers from heavy rainfall and accumulated water.
Wave conditions in the Andaman Sea and Gulf of Thailand are moderate, with the upper Andaman Sea expecting waves around 2 meters high, while the lower Andaman Sea and upper Gulf of Thailand will see waves of 1-2 meters. Areas with thunderstorms may experience waves exceeding 2 meters. Boaters in these areas should exercise caution and avoid sailing in thunderstorm zones.
Northern Region: 60% chance of thunderstorms, mainly in Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Nan, Uttaradit, Tak, Phitsanulok, and Phetchabun provinces. Low 24-27°C, high 34-38°C. Southwest winds 10-20 km/h.
Northeastern Region: 30% chance of thunderstorms, mainly in Loei, Nong Khai, Bueng Kan, Chaiyaphum, Nakhon Ratchasima, and Ubon Ratchathani. Low 24-27°C, high 35-37°C. Southwest winds 10-20 km/h.
Central Region: 40% chance of thunderstorms, mainly in Nakhon Sawan, Uthai Thani, Suphan Buri, Kanchanaburi, Ratchaburi, Nakhon Pathom, and Samut Songkhram. Low 24-26°C, high 35-38°C. Southwest winds 10-20 km/h.
Eastern Region: 30% chance of thunderstorms, mainly in Nakhon Nayok, Chachoengsao, Rayong, Chanthaburi, and Trat. Low 24-28°C, high 33-37°C. Southwest winds 15-35 km/h. Waves 1-2 meters, exceeding 2 meters in thunderstorm areas.
Southern Region (East Coast): 60% chance of thunderstorms with heavy rain in some areas, mainly in Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Yala, and Narathiwat. Low 23-26°C, high 34-36°C. Southwest winds 15-35 km/h. Waves around 1 meter nearshore, 1-2 meters offshore, exceeding 2 meters in thunderstorm zones.
Southern Region (West Coast): 70% chance of thunderstorms with heavy rain in some areas in Ranong, Phang Nga, Phuket, and Krabi. Low 23-25°C, high 31-34°C. From Phang Nga northward: southwest winds 20-35 km/h, waves around 2 meters, exceeding 2 meters in thunderstorms. From Phuket southward: southwest winds 15-35 km/h, waves 1-2 meters, exceeding 2 meters in thunderstorms.
Bangkok and Vicinity: 40% chance of thunderstorms, mainly between afternoon and evening. Low 26-28°C, high 34-37°C. Southwest winds 10-20 km/h.