ONWR Expands Flood Watch Across Thailand for September 11–13

The Office of the National Water Resources (ONWR) has released its third announcement for 2026, extending its flood watch across several regions in Thailand from September 11 to 13. According to Prachachat Business, the alert follows a monsoon trough passing through the country, coupled with a strengthening southwest monsoon.

Residents and travelers in the lower Northeast, Central, Western, and Southern regions should remain vigilant. The ONWR warns of potential flash floods, forest runoff, and landslides caused by heavy rainfall during this period.

For those currently in or planning to visit these areas, it is important to monitor local weather reports and follow guidance from provincial authorities. While the ONWR has identified these regions as high-risk, the specific intensity of rainfall in localized areas remains subject to change. Travelers are advised to check road conditions and local news updates before embarking on travel, as weather-related disruptions to transportation and outdoor activities are possible. As of now, the full extent of the impact on specific provinces is still being monitored by meteorological officials. Please stay informed through official government channels for the most current safety updates.