Published on : 11 Dec 2025, 1:09 pm

The excessive rainfall caused by Cyclone Senyar across Indonesia, Malaysia and Thailand and Cyclone Ditwah over Sri Lanka in the last week of November 2025 was made more intense by global warming along with natural climatic cycles such as El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD), according to a study by the World Weather Attribution (WWA) consortium.

The observed rainfall trends from the two storms were not well represented by the available climate models for the region, hence the scientists could not quantify the exact role played by global warming and consequent climate change in making the cyclonic rainfall more intense.

The two storms killed 1,600 people across the four countries with hundreds still missing, millions a

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