24/09/2026
In Chennai, the nights are heating up faster than the days — nearly four extra very warm nights every summer over the last decade.
By 2030, the city could see almost twice as many heatwave days.
Extreme heat is now a hyperlocal, round-the-clock risk. So the response has to be just as precise.
the Tamil Nadu State Heat Action Plan 2026 — the first in India built on a hyperlocal heat risk assessment, mapping vulnerability across all 38 districts and 25 municipal corporations, right down to wards and panchayats, to pinpoint where heat risk is highest and who is most exposed.
Developed by the Tamil Nadu Disaster Risk Reduction Agency (TNDRRA) with technical support from CEEW, it turns that science into action: sector plans for health, agriculture, power and outdoor workers; hospital preparedness before the season begins; a Daily Heat Report; and a dedicated Heatwave Task Force.