Safety
Flooding in Nan Province: Situation Update and Outlook
Heavy rainfall in Nan province has caused significant flooding, impacting over 12,900 households, with casualties reported as authorities monitor further weather risks.
According to a report by Prachachat Business on August 20, 2026, Nan province is currently managing the aftermath of severe flooding triggered by 24-hour accumulated rainfall reaching 388 mm. The flooding has affected more than 12,900 households. Tragically, officials have confirmed two fatalities and one person remains missing.
As of the latest update, water levels in the area have begun to stabilize and are gradually receding. However, the situation remains sensitive for residents and travelers in the region. The Office of the National Water Resources (ONWR) is closely monitoring the weather, as a new wave of rainfall is forecasted for August 23. This upcoming weather event is expected to bring an additional 50–70 mm of accumulated rain, particularly affecting the headwaters of the Nan River basin.
For those currently in or planning to visit Nan, it is essential to stay informed through local authorities and weather updates, as the potential for further water accumulation remains a concern. While the immediate crisis is showing signs of easing, the risk of renewed flooding persists. Authorities are currently discussing long-term water management strategies, including the use of 'monkey cheek' (kaem ling) water retention areas to mitigate both flood and drought risks. Travelers should exercise caution and monitor local news for any travel advisories or changes in conditions as the next weather system approaches.