Flash Flood Warning Issued for Koh Samui
Authorities have issued an urgent warning for Koh Samui due to heavy rainfall and high tides, increasing the risk of flash floods and landslides.
On November 12, 2026, Thailand’s Department of Disaster Prevention and Mitigation (DDPM) released an urgent advisory for residents and visitors on the island of Koh Samui. According to Khaosod English, the warning comes as a result of persistent heavy rainfall combined with high tide conditions, which significantly elevate the danger of flash floods and landslides in vulnerable areas.
What this means for you
Residents and those currently staying on the island are being urged to take proactive measures, including moving personal belongings to higher ground to prevent damage. The combination of weather factors creates a volatile environment, particularly for those located in low-lying regions or near steep terrain where landslide risks are heightened.
Current status
While the DDPM has identified the increased risk, the full extent of potential impact remains to be confirmed as weather patterns evolve. Travellers are advised to monitor local news outlets and follow instructions from provincial authorities closely. It is essential to remain vigilant and prioritize safety by avoiding areas prone to flooding. As of now, there have been no reports of specific infrastructure failures, but the situation is being monitored by disaster management teams to ensure public safety.
