In recent weeks, Southeast Asia has found itself facing a series of exceptional meteorological events that have brought entire communities to their knees in Thailand, Indonesia and parts of Malaysia. In southern Thailand, particularly in the province of Songkhla, there was what the authorities define as the worst flood in the last 300 years, with 335 mm of rain falling in a single day on the city of Hat Yai. The water submerged houses, hospitals and entire roads, leaving much of the population stranded and without escape routes.
The dramatic toll
According to local authorities, there are at least 33 confirmed victims and over 2 million people are affected by the emergency, including displaced people, evacuees or citizens left isolated. In the city of Hat Yai, the main public hospital was completely flooded and around 600 patients had to be transferred or cared for in extremely difficult conditions. The government declared Songkhla a “disaster area”, setting in motion a vast relief operation.
Severe flooding hits ten southern provinces of Thailand, affecting over 2 million people, the worst in 25 years
The Department of Disaster Prevention and Mitigation reported that ten provinces have been impacted, with Hat Yai in Songkhla province hardest hit, according to The… pic.twitter.com/0cWeZp0ZFe
— Visegrád 24 (@visegrad24) November 25, 2025
Difficulties in rescue
The army, the Navy and a fleet of 14 military ships have been mobilized and are operating as aid centers and, if necessary, as actual floating hospitals. The rescue teams were also supported by helicopters and amphibious vehicles, essential to reach the completely submerged areas. Although some territories show a slow retreat of the waters, strong currents continue to make operations dangerous and difficult.
Listen to the cries for help!
This is not just a flood. This is record-breaking.
Southern Thailand has been hit by unprecedented rainfall, with some areas seeing “1-in-300-year” levels of rain.
Entire neighborhoods are submerged, vital roads are destroyed, and families… pic.twitter.com/z1QeW3QjB3
— Volcaholic
(@volcaholic1) November 25, 2025
Indonesia: landslides and villages overwhelmed
The picture does not improve in Indonesia, where monsoon rains have devastated the island of Sumatra. Here, violent landslides have swept away hilly villages, destroying homes, fields and infrastructure. There were at least 10 dead, several injured and numerous people missing, while over 2,000 buildings were damaged or submerged in mud. The search operations are made even more complicated by the unstable terrain and the continuous rain.
Landslides and floods caused by heavy rainfall in the Sibolga, North Sumatra, Indonesia
pic.twitter.com/XAY65k6bOs
— Disaster News (@Top_Disaster) November 25, 2025
The causes of these exceptional phenomena
The scientists explain that the intensity of the precipitation was amplified by the combination of La Niña and a strong oscillation in ocean temperatures, a rare phenomenon that exasperated the effects of the monsoon. In Thailand as in Indonesia, the fragility of infrastructure and limited response capacity make the impact of these events even more devastating.
The rarest event just occurred, a TROPICAL STORM has formed in Selat Melaka! This is the low-pressure system that contributed to severe flooding in Malaysia & Thailand, it has now strengthened & is expected to hit Aceh / Sumatera Utara soon.
Ribut tropika in this area is crazy.. pic.twitter.com/DU7vPsCxlk
— izzi (@IzzraifHarz) November 25, 2025
You might also be interested in:

(@volcaholic1)