Meteorological Department Warns 41 Provinces of Severe Summer Storms; Bangkok Not Spared—Thunderstorms and Strong Winds Expected
Meteorological Department warns 41 provinces of severe thunderstorms and strong winds over the next 24 hours, with the southern region facing heavy rain and the central plains experiencing extreme heat as moisture-laden winds sweep across T
May 5, 2026—The Meteorological Department forecasts that rainfall in northern Thailand will decrease over the next 24 hours, though thunderstorms and strong winds may still occur in some areas with rising temperatures. The northern and central regions will experience hot daytime conditions and extreme heat in certain zones as a high-pressure system and cold air mass from China weaken over the Northeast and South China Sea. Meanwhile, southerly and southeasterly winds bring moisture from the Gulf of Thailand and South China Sea across upper Thailand. Residents in affected areas should remain vigilant against thunderstorms and strong winds while monitoring their health during the unstable weather period.
The southern region will see increased rainfall with heavy rain in some areas due to easterly winds covering the Gulf of Thailand and southern provinces. Mariners should exercise caution and avoid thunderstorm zones. Sea conditions in the Gulf of Thailand and Andaman Sea will have waves approximately 1 meter high, exceeding 2 meters in thunderstorm areas.
Air quality in upper Thailand shows minor to moderate particulate and haze accumulation due to scattered rainfall.
Regional Forecasts (06:00 today to 06:00 tomorrow):
North: Hot daytime conditions with extreme heat in some areas; 10% chance of thunderstorms with occasional strong winds. Mainly in Chiang Mai, Chiang Rai, Phayao, Nan, Phitsanulok, Phetchabun, and Tak. Low: 21-26°C, High: 35-41°C. Southerly winds 5-15 km/h.
Northeast: Hot daytime with 10% thunderstorm chance and occasional strong winds, mainly in Loei, Chaiyaphum, and Nakhon Ratchasima. Low: 22-24°C, High: 34-39°C. Southeasterly winds 10-20 km/h.
Central: Hot daytime with extreme heat in some areas; 20% thunderstorm chance with strong gusts. Mainly in Uthai Thani, Saraburi, Ayutthaya, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Songkhram, and Samut Sakhon. Low: 24-27°C, High: 37-40°C. Southerly winds 10-20 km/h.
East: Hot daytime with 20% thunderstorm chance and strong winds, mainly in Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Rayong, Chanthaburi, and Trat. Low: 24-26°C, High: 34-38°C. Southeasterly winds 15-30 km/h. Sea waves 1 meter; exceeding 2 meters in thunderstorm zones.
South (Eastern Coast): Hot daytime with 40% thunderstorm chance and heavy rain in some areas in Chumphon, Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, Yala, and Narathiwat. Low: 24-26°C, High: 31-37°C. Southeasterly winds 15-30 km/h. Sea waves 1 meter; exceeding 2 meters in thunderstorm zones.
South (Western Coast): Hot daytime with 40% thunderstorm chance and heavy rain in some areas. Low: 24-26°C, High: varies. Southeasterly winds 15-30 km/h.
