Southern Thailand, including Phuket, faces heavy rain and flash-flood risk through 28 October 2026, with airports preparing for possible flooding, according to the Thai Meteorological Department. The Thailand flash flood warning covers heavy to very heavy rain, flash floods and rapid run-off.
The department extended its warning for heavy to very heavy rain from 24 to 28 October, while a separate warning from the Office of the National Water Resources covers 23 to 26 October, according to Rawai News. Accumulated rainfall could cause flash floods, rapid run-off and flooding in foothill communities near waterways.
Ten provinces at highest risk
The separate water resources advisory warns of waterlogging, flash floods, forest run-off and mudslides in Ranong, Phang Nga, Phuket, Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Satun, Yala and Narathiwat, officials said.
On 25 October, five southern provinces – Songkhla, Yala, Narathiwat, Trang and Satun – were expected to face torrential rains, according to a Thai Meteorological Department warning reported on 24 October. During thunderstorms, waves in the Gulf of Thailand and Andaman Sea may exceed two metres.
Thailand’s Transport Ministry ordered southern airports under the Department of Airports to prepare and monitor conditions around the clock, officials said. Airport teams were instructed to assess grounds, access routes and water-level forecasts.
wider flooding already under way
On 23 October, the Department of Disaster Prevention and Mitigation reported that due to ongoing heavy rainfall, 16 provinces and Bangkok were experiencing floods, affecting about 375,700 households and 1,131,400 people, with a cumulative death toll of 64, according to United Daily News.
Since mid-September, Thailand has experienced several rounds of heavy rainfall, triggering floods and disasters, officials said. As floods recede in some areas, the government is speeding up drainage, rescue and recovery efforts.
Residents were advised to avoid routes with a history of repeated flooding, particularly low-level roads where short-term waterlogging may occur, officials said. Mariners were advised to navigate with caution in rough seas.
Disaster officials said drainage teams were working to clear blocked canals and waterways in southern provinces, and they urged residents in flood-prone areas to move valuables upstairs, avoid driving through flooded roads, and to call emergency services if water rose rapidly around their homes.
