Bangkok Declares All 50 Districts Disaster Zones After Floods

The Bangkok Metropolitan Administration declared all 50 districts of the Thai capital disaster zones on Saturday, September 26, 2026, after nearly 300mm of rain fell in under 48 hours, flooding roads, filling canals and disrupting daily life across the city of roughly 9 million residents.³⁴⁶⁵

From three districts to fifty

Governor Chadchart Sittipunt signed the order expanding the disaster declaration from an initial three districts to the entire city as conditions worsened, according to Thai PBS and Bernama. CNA reported that the decision lets municipal departments react faster in impacted zones.⁸⁶²

Bangkok Post and Malay Mail said the rain lasted almost 48 hours and left canals full and roads submerged, with Bangkok recording 487mm of rainfall between September 1 and 25, well above the 1991-2020 average of 269mm for the period. EFE, citing the same rainfall pattern, said the downpours produced an estimated 30 million cubic metres of water and were driven by a low-pressure system bringing storms across up to 80 percent of central Thailand.³⁴⁵

Bangkok Post attributed the unsettled weather to a strong low-pressure system over the lower Central Plains, with the Thai Meteorological Department forecasting heavy to very heavy rain until September 27, according to Bernama.³⁶

Government mobilises

From London, Prime Minister Anutin Charnvirakul led a video conference on Saturday to coordinate the flood response, with Bangkok Post and Malay Mail reporting he was ending his trip early; The Business Standard said he was due to land back in Bangkok on Sunday morning.³⁴⁷

Defence Minister Adul Boonthamcharoen ordered military units nationwide to mobilise full capabilities, with more than 10,000 personnel and over 1,000 trucks and specialised vehicles supporting operations, according to Bernama. He said: "During critical times, assistance must be timely; once the waters recede, we must help people get back on their feet as quickly as possible."⁶

Bangkok Post reported that pumping stations were operating at full capacity, discharging 1,200 cubic metres per second combined, while water releases at the Chao Phraya Dam were increased from 1,850 to 1,950 cubic metres per second. Malay Mail said Chadchart described the situation as having stabilised, adding, "If more rainwater doesn't fall in the area, it will be solved." Schools were ordered to close on Monday and government employees encouraged to stay home, Bangkok Post said, while a cell broadcast alert was sent to residents about critical canal water levels.³⁴

Residents describe the flooding

Malay Mail quoted Somkid Pheuk-ngam, a 67-year-old vendor near a canal north of central Bangkok, who said, "The water keeps coming in. It's hard to go out now. It's like at my waist level now," she said, adding that she had kept her shop closed for two days and considered this flood worse than the one in 2011.⁴

Other residents cited by Malay Mail described disruption to daily routines. Samruay Nakkamnueng said, "I woke up to go to work and the street in front of my house was flooded," and worried whether her motorbike could pass through the water. Sanitation worker Kwan Nobnom said his crew was struggling to keep the drainage clear, remarking, "We thought this year would be dry, so we didn't expect the flooding to be this bad." Malay Mail reported that roughly 980 residents had taken refuge in temporary shelters and that hospitals had received 36 bed-ridden patients transferred from flooded areas.⁴

A city built on soft ground

According to EFE, Bangkok is built on the delta of the Chao Phraya River, standing roughly 1.5 metres above sea level on average, and decades of excessive groundwater pumping have caused the ground beneath the city—home to about 9 million people, or more than 15 million including its wider metro area—to sink.⁵

Both Al Jazeera and Malay Mail recalled the 2011 Thailand floods, in which more than 500 people died and millions of homes were damaged.¹⁴⁵⁷

The Business Standard reported that in the aftermath of 2011, Yingluck Shinawatra's administration rolled out a $10.47 billion comprehensive water management scheme, which the government that took power after the May 2014 coup later scaled back, scrapping or reworking several of its central elements.¹⁴⁵⁷

Rain expected to persist, then ease

According to Bernama, Bangkok Post and The Business Standard, floodwaters of differing intensity struck 20 additional provinces—among them Pathum Thani, Samut Sakhon, Samut Prakan, Nakhon Pathom and Nonthaburi—and Bangkok Post noted that Pathum Thani's Rangsit municipality had been named an emergency disaster area.⁶³⁷

EFE said the storm system sat to the west of Bangkok on Sunday, and weather platform Zoom Earth projected it would weaken and disperse on Monday once it crossed into Myanmar, with rainfall gradually tapering off. Bus and train services were disrupted, though Bangkok's international airports continued operating normally, EFE said.⁵