Thai Meteorological Department forecasts heavy rain across 17 provinces on October 28, 2026

Key summary

The Thai Meteorological Department (TMD) issued Warning No. 10 (282/2026) at 5am Thai time on October 28, 2026, predicting heavy rainfall in 17 provinces across the Central and Southern regions. The forecast identifies five provinces in the Central region—Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon, and Samut Songkhram—and 12 provinces in the South: Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Ranong, Phang Nga, Phuket, Krabi, and Trang. Persistent rain is expected to cause flash floods and runoff, particularly in low-lying areas and along waterways near foothills in the South. Upper Thailand, especially the Central region, will face thunderstorms, strong gusts, and isolated heavy downpours driven by a high-pressure system or cold air mass from China covering upper Thailand and the South China Sea, alongside easterly winds and a low-pressure area over the Andaman Sea. Waves in the Andaman Sea and Gulf of Thailand may exceed two metres during storms. Residents are advised to avoid open spaces, large trees, and areas near unsecured billboards, while boat operators should navigate cautiously or avoid sailing through stormy conditions. The warning remains in effect through October 28, with the next update scheduled for 5pm Thai time on the same day. Updates can be accessed via the TMD website or by calling 02-399-4012–13 and 1182.