Bangkok authorities declared all 50 districts disaster-affected zones on September 26, 2026, after nearly 48 hours of relentless rainfall overwhelmed municipal drainage systems, left major canals completely full, and submerged roads across the Thai capital.
Continuous downpours starting Thursday afternoon transformed city streets into rushing waterways and forced residents in low-lying neighbourhoods to wade through deep water. The Bangkok Metropolitan Administration activated emergency powers across every district as water levels surged, prompting Governor Chadchart Sittipunt to urge residents to stay home and prepare for ongoing disruptions.
Canals Overwhelmed and Streets Submerged Across All 50 Districts
The relentless rain dropped almost 300 millimetres (11.8 inches) across parts of the capital, pushing municipal drainage systems past their breaking point. Eastern and central sectors of Bangkok bore the brunt of the deluge, where overflowing canals sent murky water spilling into surrounding homes, restaurants, shops, and residential ground floors.
“The water keeps coming in. It’s hard to go out now. It’s like at my waist level now.”
Somkid Pheuk-ngam, vendor living near a canal north of central Bangkok
Vendor Somkid Pheuk-ngam, 67, who lives near a canal just north of central Bangkok, told AFP that she had been forced to keep her shop closed for two days. I cannot go anywhere. I have been closing my shop for two days now,
she said, adding that while she often gets flooded, I think this time is worse than the 2011 flood.
Widespread deluges across Thailand in 2011 killed more than 500 people and damaged millions of homes. Motorbike riders and commuters found themselves wading through deep water as roads went underwater. Emergency declarations were announced throughout every single district of the metropolis after torrential rains struck the capital continuously on Friday and carried on into Saturday. On Saturday, September 26, officials reported that rainwater accumulation had pushed major Bangkok canals past the 20 centimetres (7.8 inches) mark. According to BBC reports, precipitation in parts of the city surpassed 150 mm (5.91 inches) following more than 24 hours of uninterrupted rainfall. Residents have been instructed to remain indoors, while individuals residing near the canal network received guidance to relocate their possessions to higher levels. Bangkok Governor Chadchart Sittipunt warned that the situation poses a risk to people's lives … as well as damage to public and private property.
Emergency Response and Drainage Operations Underway
Prime Minister Anutin Charnvirakul announced he was cutting short his journey to London to head back, while officials declared a flood emergency across the Thai capital on Saturday following nearly two days of torrential downpours that filled canals to the brim, put roads underwater, and forced inhabitants to wade through profound inundations. Chadchart said mid-afternoon on Saturday that the situation had “stabilised,” adding: If more rainwater doesn't fall in the area, it will be solved.
If the rain stops, it is expected that it will take 2-3 days to drain the floodwater,
he said in an update broadcast on social media. Bangkok’s waterway system swelled due to nearly unbroken rainfall starting Thursday afternoon, flooding nearby residences, dining establishments, retail stores, and additional properties with turbid water. Across 21 provinces nationwide, flooding impacted upwards of 84,000 individuals as of Saturday, with the central area experiencing the heaviest consequences. Government officials announced that emergency alerts were dispatched to populations within impacted zones utilizing cell-broadcast technology.
District offices must organise staff and work with residents to fill and position sandbags wherever needed, while the Department of Drainage and Sewerage coordinates supplies of sand and sandbags. District offices and municipal enforcement officers must coordinate with local traffic police to manage travel and closely monitor conditions, and vehicles from the BMA and other agencies must be mobilised to transport residents while broken-down vehicles and those obstructing routes are moved promptly. Municipal drainage systems and water channels must be cleared of trash and obstructions by district personnel as flood levels recede to facilitate proper flow, alongside evaluating the need for portable restrooms, arranging their deployment, and inspecting safety and sanitation standards at evacuation centers. To guarantee consistent execution, Bangkok central agencies and district offices are required to maintain close communication and share data, holding their review sessions through Zoom.
Rainfall Statistics and Meteorological Forecasts
Traffic flow was disrupted and select inhabitants were compelled to evacuate as persistent precipitation from Thursday afternoon through Saturday morning inundated multiple zones within the Thai metropolis. Water inundation spread throughout the municipality, heavily impacting central and eastern districts where it halted transit and blocked roadways. Citing an intensifying southwest monsoon alongside a powerful low-pressure cell positioned above the central region, Thailand’s Meteorological Department cautioned that heavy showers are anticipated to persist across the majority of the nation through Sunday. Photos and videos showed major roads submerged and cars abandoned after driveways and parking lots went underwater following heavy rain battering the region.
Related reading