Severe flooding caused by heavy monsoon rains in late November 2025 has led to at least 170 deaths in southern Thailand. However, most major tourist destinations such as Phuket, Krabi, Koh Samui, Koh Phangan, Koh Tao, and Koh Lanta remain largely unaffected and operational. Visitors flying directly to these islands are experiencing minimal disruptions to their travel plans and tourist activities continue as normal. Mainland provinces including Surat Thani and northern Phang Nga are partially affected, with possible delays and travel disruptions.
While island airports, ports, and accommodations operate normally, overland travel has faced significant challenges. Rail services south of Surat Thani are suspended or heavily restricted due to flooding and landslides, with gradual reopening expected around mid-December 2025. Road transport to southern Thailand has started returning to normal, with the Department of Highways recommending alternative routes and cautious driving. Travelers should heed local advisories and expect conditions to stabilize by mid to late December.
Travelers are advised to stay informed through the Tourism Authority of Thailand and local news sources for ongoing updates. Overland routes involving Nakhon Si Thammarat, Hat Yai, and Trang may require schedule adjustments. The dry season from December through February is approaching, which is typically the most stable and favorable period for visiting southern Thailand.
"Travelers flying directly to Phuket, Krabi, Koh Samui or Koh Phangan can expect a mostly normal holiday experience without major interruptions."
Despite severe flooding causing casualties and disruptions on the mainland, southern Thailand's key tourist islands remain safe and accessible, offering viable travel options during this period.