Extreme heat in Hanoi: plans, cycles and who is at work
A fast-growing northern capital whose power and water strain together in the heat. Heat plan: no published city heat plan found.
Heat type: Mostly humid heat, in a hot, wet summer. Dry heat and humid heat, explained.
Heat action plan: No published city heat plan found
No city heat action plan found. From 2018 to 2021 the Viet Nam Red Cross ran an early-action plan for heatwaves in 15 of Hanoi’s wards, triggered by a heat-index forecast.
Sources: Anticipation Hub
Heat today
Live readings and the week’s forecast are on the interactive map. Official warnings: National Centre for Hydro-Meteorological Forecasting. How much climate change shaped today’s heat: Climate Shift Index map, Climate Central.
Vicious cycles the evidence ties to Hanoi
The energy–water loop
In May and June 2023 heat drove demand up as hydropower reservoirs ran low; blackouts in the north cost about US$1.4 billion. Source: World Bank estimate, reported by AFP via The Manila Times, 2023
The global cooling loop
Southeast Asia’s air conditioners could rise from 40 million to 300 million by 2040. Source: International Energy Agency, 2019
Who heat hits hardest here
Already at work here
- State Bank of Vietnam: Requires banks to assess environmental risk before lending to projects (since 2023). After Typhoon Yagi in 2024, it let lenders reschedule repayments for affected borrowers across 26 provinces, with final repayment allowed until the end of 2027.