Heavy Rain Forecast for 48 Thai Provinces
The Thai Meteorological Department warned of heavy rain, strong winds, and hail across 48 provinces, including Bangkok, for October 6, 2026, with about 70% of the area affected. Residents were advised to prepare for flash floods and avoid exposed areas, while mariners were told to watch for waves over two meters high in the Andaman Sea and Gulf of Thailand.
The Meteorological Department's 24-hour forecast for October 6, 2026, calls for thunderstorms, heavy rain, strong gusts, and hail across 70% of the northern, central, Bangkok metropolitan area, eastern, and upper southern regions, with possible lightning. Residents are urged to guard against flash floods and overflowing streams, especially in hilly and low-lying areas, and to avoid open spaces, large trees, and weak billboards. The northeast will see less rain as a cold high-pressure system from China moves over the north, northeast, upper central, and South China Sea, while easterly and southeasterly winds bring moisture from the South China Sea and Gulf of Thailand. Meanwhile, the southwest monsoon covers the Andaman Sea and Thailand. In the Andaman Sea and Gulf of Thailand, thunderstorm areas may generate waves over 2 meters high; boaters should check routes and avoid those zones. From October 9 to 13, 2026, rain is expected to increase in the east, central, Bangkok area, and south, with heavy to very heavy rain in some places due to another reinforcing high-pressure system from China shifting the monsoon ridge southward over the east and upper south, combined with a moderate southwest monsoon over the Andaman Sea, Thailand, and the Gulf of Thailand. The public should closely follow weather updates and remain alert for heavy rain and accumulated rainfall that could trigger flash floods and river overflows.
