Today's Weather: Meteorological Department Names 45 Provinces Under Heavy Rain Alert, Including Bangkok
Heavy rain alerts cover 45 Thai provinces including Bangkok as the Meteorological Department warns of thunderstorms and strong winds through early May, with a second storm system expected to develop between April 28 and May 1.
On April 26, 2025, the Thai Meteorological Department forecasted that rainfall in northern Thailand will begin to decrease over the next 24 hours, though thunderstorms with strong gusty winds and heavy rain remain possible in some areas across the northern region. Southern and southeast winds are bringing moisture from the Gulf of Thailand and South China Sea, affecting the northeastern, northern, central regions, Bangkok and its surrounding areas, with weakening conditions in the eastern region. Residents in affected areas should remain alert to dangers from thunderstorms, strong winds, and heavy rainfall while maintaining health precautions during this weather transition.
A second summer storm system is expected to develop across northern Thailand between April 28 and May 1, featuring thunderstorms, strong gusty winds, hail in some areas, and possible lightning strikes, beginning in the northeastern, northern, and eastern regions before affecting the central region and Bangkok area. Additionally, dust and haze accumulation in the northern and upper central regions currently exceeds air quality standards due to high heat source density surpassing air circulation capacity. The public is advised to avoid open areas and wear N95 masks when outdoors for safety.
Detailed provincial forecasts show the northern region with afternoon heat, 40% thunderstorm coverage, strong winds, and heavy rain in areas including Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Phayao, Nan, Phrae, Uttaradit, Tak, Phitsanulok, and Phetchabun, with temperatures between 21-38°C. The northeastern region expects 40% thunderstorm coverage in provinces like Loei, Nong Khai, Bueng Kan, Nong Bua Lam Phu, Udon Thani, Chaiyaphum, Yasothon, Amnat Charoen, Nakhon Ratchasima, Buriram, and Ubon Ratchathani, with temperatures 22-34°C. The central region will experience afternoon heat with 20% thunderstorm coverage in areas including Nakhon Sawan, Lopburi, Saraburi, Phra Nakhon Si Ayutthaya, Kanchanaburi, and Ratchaburi, with temperatures 25-38°C. The eastern region expects afternoon heat with 30% thunderstorm coverage in provinces such as Nakhon Nayok, Prachuap Khiri Khan, Sa Kaeo, Chachoengsao, Chonburi, Rayong, Chanthaburi, and Trat, with temperatures 24-38°C and 1-meter waves, higher in thunderstorm areas.
