Bangkok Declares Flood Disaster Zone as Heavy Rain Overwhelms City

Bangkok declared a flood disaster zone after heavy rain overwhelmed the city's drainage system between September 24 and 27, 2026. Around 700,000 people are affected, with thousands sheltering in emergency centers as economic damage estimates range from $320 million to $418 million. The 48-hour deluge exposed the limits of Bangkok's drainage infrastructure, and local residents have rallied to help each other amid the flooding. Businesses are struggling to cope with the estimated 25.3 billion baht in losses for the period.