Severe flooding hits Thailand's central region, flash flood affects Bangkok roads

Bangkok police locked down certain roads on Thursday, November 13, after flash flooding reached hazardous levels, urging motorists to seek alternative routes. 

The city experienced heavy early-morning rainfall that overwhelmed drainage systems, leaving several major roads inundated; Ratchadaphisek Road was among the hardest hit.

Officials warned that floodwater in the closed section is deep enough to threaten most vehicles, with small passenger cars at particular risk of severe engine and electrical damage if attempting passage. 

Travellers who usually rely on Ratchadaphisek Road to reach Sutthisan Intersection or nearby neighbourhoods were advised to promptly update their journey plans. 

Congestion

The closure has already caused significant congestion around affected parts of the city, as per Bangkok Post.

Authorities also urged drivers to check live traffic updates and water levels before heading out, as conditions can change rapidly and more rain is expected.

The flooding serves as a reminder of Bangkok’s vulnerability during the rainy season and highlights the importance of timely alerts and preparedness for motorists and residents alike.

Severe flooding hits central region

Thailand’s central region faced severe flooding after a flood barrier collapse in In Buri District, Sing Buri Province, on November 12, 2025, submerging three villages and threatening key areas like the district office and police station, according to local media.

La Niña

The breach released a massive volume of water, exacerbating the crisis in a region already struggling with above-average rainfall due to a strengthening La Niña pattern expected to persist through early 2026.

Satellite data from the Geo-Informatics and Space Technology Development Agency (GISTDA) on November 11, 2025, showed flooding across 17 provinces, with water levels reaching at least 50cm in many areas.

The flooding follows a year of erratic weather, with a prolonged dry spell earlier reducing dam levels below 30% capacity in April 2021, complicating water management strategies.

The government has deployed over 790 disaster-relief machines and vehicles, offering 9,000 baht per affected household as part of a broader emergency response activated on October 6, 2025.

International aid organizations, including the United Nations, are monitoring the situation, drawing parallels to the 2011 floods that caused over $40 billion in damages [thailand.un.org, 2021].

Climate experts warn of increased flood risks due to stronger monsoons and potential tropical cyclones, urging enhanced infrastructure and preparedness measures.