ONWR Issues High Tide Warning for Bangkok and Surrounding Areas

The Office of the National Water Resources (ONWR) has issued an official alert regarding high tide conditions expected between August 25 and August 29, 2026. According to Prachachat Business, this phenomenon is driven by a combination of strong southwest monsoon winds and an increase in heavy rainfall across the central region of Thailand.

For residents and travelers in Bangkok and its surrounding provinces, this warning is particularly relevant for those located in low-lying areas along the Chao Phraya River. The ONWR specifically highlighted that communities situated outside of the permanent flood embankment walls are at an increased risk of water overflow. The combination of high tides and heavy precipitation may cause water levels to rise higher than previously forecasted.

While the alert serves as a precautionary measure to ensure public readiness, the exact impact on specific neighborhoods remains to be confirmed based on real-time water flow and local rainfall intensity. Those living or traveling near the riverbanks are advised to monitor local news updates and follow guidance from municipal authorities. As of now, the situation is being closely monitored by the ONWR to assess whether additional emergency measures will be required to mitigate potential flooding in the metropolitan area.