India recorded 97 of the world’s 100 hottest cities on 22 May 2026 during a severe heatwave across northern, central, and eastern regions.
Balangir in Odisha and Sasaram in Bihar recorded 48°C, while Varanasi in Uttar Pradesh recorded 47°C.
Earlier on the same day, all 50 of the world’s hottest cities were in India.
The India Meteorological Department (IMD) forecast heatwave to severe heatwave conditions until 27 May 2026 across several states in northern and eastern India.
A heatwave is a period of abnormally high temperature lasting several days and is classified by IMD using temperature thresholds and departure from normal conditions.
Low humidity levels of 6–8%, along with extreme temperatures increased risks of heat stress, dehydration, and heatstroke.