Extreme heat in Mumbai: plans, cycles and who is at work

A coastal megacity where the nights are heating faster than the days. Heat plan: parts in place, no full plan found.

Heat type: Mostly humid coastal heat. Dry heat and humid heat, explained.

Heat action plan: Parts in place, no full plan found

Mumbai’s 2022 Climate Action Plan names urban heat as a priority, and the city is working with C40 on heat-health protocols for its hospitals. No standalone city heat action plan found.

Sources: Citizen Matters · C40 Cities, 2026

Heat today

Live readings and the week’s forecast are on the interactive map. Official warnings: India Meteorological Department. How much climate change shaped today’s heat: Climate Shift Index map, Climate Central.

Vicious cycles the evidence ties to Mumbai

The sleepless-nights loop

Mumbai gained 15 very warm nights a summer over the last decade. Source: Council on Energy, Environment and Water (CEEW), 2025

Hot nights wreck sleep. Poor sleep frays mental health, and stress makes sleep harder still. Follow it on the map.

The energy-poverty trap

Tin-roofed informal settlements trap heat for people who can’t afford to cool.

People who can’t afford to cool fall ill. Illness brings debt, and debt puts cooling even further out of reach. Follow it on the map.

The invisible-deaths loop

Death certificates usually record the immediate cause, so heat as the trigger goes unrecorded. Source: Down To Earth, 2024

Heat deaths go uncounted, so heat protection goes unfunded, so more people die uncounted. Follow it on the map.

Who heat hits hardest here

• People in informal settlements
• Workers in heat-exposed jobs

Heat action plans on file

The India heat action plan archive has no verified document for Mumbai yet; plans for its state and national guidance are there.

A worked plan to learn from

Thane’s ward-by-ward heat action plan (Thane, India, 2024 onwards)

Already at work here

• WRI India: Works on heat mitigation planning with Indian cities, including greening and cooling pilots in Kochi and Mumbai and the Bengaluru Heat Collective.
• C40 Cities: Its Cool Cities Accelerator brings together cities including Ahmedabad, Bengaluru, Mumbai and Singapore on early warnings, building standards and tree cover.
• HDFC Life (Swabhimaan CSR): Funds city forests and waterbody revival in Sikkim, Maharashtra and Gujarat alongside livelihoods and health work. Heat-specific funding is not confirmed.
• ICLEI South Asia: Supports cities with heat risk assessments, heat action plans, urban greening and preparedness tools in India, Nepal and Bangladesh.

Listing does not imply partnership, affiliation or endorsement.

The national picture

Plans and law, warnings, rules for heat at work, cooling, money and other cities in India: the India country snapshot.