The US Embassy Bangkok issued a weather alert on 26 September 2026 as heavy rain and flooding hit all 50 districts of Bangkok and spread across 26 provinces nationwide. As of 28 September, the situation is still developing. Here is what we know.
What Is Happening
Continuous heavy rain since late September has caused widespread flooding across Thailand. Bangkok saw all 50 districts affected by 26 September. By 28 September, the State Highway Office reported 56 road blockages at locations across 228 flood-affected sites in 26 provinces.
The Thai Cabinet declared 28–29 September as emergency public holidays in four flood-affected provinces. In Bangkok, authorities have urged residents to avoid low-lying areas and monitor water levels.
Flight Disruptions
Bangkok’s airports have been affected by the flooding. Thai AirAsia and Thai AirAsia X are offering passengers on affected Bangkok flights between 26–28 September the option to change travel dates at no charge. If you are flying into or out of Bangkok during this period, contact your airline directly to check your options.
See our Bangkok airport transfers guide for transport options between Suvarnabhumi or Don Mueang and the city — check current road conditions before travel.
Rail and Road
- Eastern Line suspended: The State Railway of Thailand suspended services on the Eastern Line due to flooding.
- Northern and Northeastern lines: Reopened but may face delays.
- Highways: 56 locations blocked across flood-affected provinces as of 28 September; check getting around Thailand for alternative routes.
What Travellers Should Do
If you are currently in Thailand or arriving soon:
- Check your flight status directly with your airline before heading to the airport.
- Avoid flooded roads — even if GPS routing shows a road as open, local blockages may not yet be updated.
- Allow extra time for all journeys in and around Bangkok.
- Follow local emergency alerts and the US Embassy travel alert page.
Our full Bangkok travel guide has transport, accommodation, and practical information to help you plan around the disruption. We will update this page as the situation develops.