Climate India 2025: An Assessment of Extreme Weather Events

November 11, 2025

All Indian states are significantly climate vulnerable, yet robust data on extreme weather events, which are increasing in frequency and intensity due to climate change, is not available publicly. This happens because government agencies use different definitions and data collection sources, which obscures the bigger picture.

This report, released annually since 2022, is an attempt to build an evidence base on the frequency and expanding geography of extreme weather events in India. It provides season-by-season, month-by-month, and region-by-region analyses of extreme weather events and the loss and damage they caused in the first nine months of 2025.