The Meteorological Department issued Announcement No. 9 warning of "unstable weather" across many regions of Thailand, including Bangkok, forecasting thunderstorms, strong gusty winds, and heavy rain in some areas. Check which provinces are affected.
On 9 May 2026, the websiteMeteorological Departmentissued a statement regarding unstable weather over Thailand, effective until 10 May 2026, Announcement No. 9. It stated that the northern, northeastern, eastern, central regions, including Bangkok and its vicinity, will experience thunderstorms, strong gusty winds, and some heavy rain.
Afterward, the heat will ease as a high-pressure system or cold air mass from China spreads over the northeast and South China Sea, combined with southerly and southeasterly winds bringing moisture from the Gulf of Thailand and South China Sea over upper Thailand. Meanwhile, the easterly winds over the South and Gulf of Thailand will strengthen, causing heavy to very heavy rain in some areas of the South.
People in these areas are advised to be cautious of dangers from thunderstorms and strong gusty winds by avoiding open spaces, large trees, unstable structures, and billboards. They should also beware of heavy and accumulated rain that may cause flash floods and flash floods. Farmers should reinforce fruit trees and prepare to protect crops and livestock from potential damage. Additionally, take care of health during this changing weather. The public is urged to follow updates from the Meteorological Department and can access information on the department’s website.http://www.tmd.go.thor call 0-2399-4012-13 and 1182, available 24 hours.
Provinces expected to be affected by thunderstorms, strong gusty winds, and heavy rain are as follows:
High risk
Moderate risk
High risk
Moderate risk