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Cities · Heat

Urban heat island map. Find the streets that never cool down.

Concrete, asphalt and dense buildings store heat during the day and release it at night, so parts of a city stay much warmer than their surroundings. During a heatwave that difference matters for health, energy and work. A city twin maps it block by block.

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Cooling mist sprays over a sunlit street in Florence, Italy, as people walk away along the hot, bright pavement. — Photo: Richard Vanlerberghe · Unsplash License

The questions

Which neighbourhoods stay hottest at night during a heatwave?
Who lives there: older residents, children, outdoor workers?
How much cooler could a street be with trees, shade or lighter surfaces?
Where should cooling centres and water points go?

What the twin would model

Buildings, street width and surface materials
Trees, parks and water
Satellite land-surface temperature and local weather stations
Population and vulnerable groups by area
Clinics, schools and public buildings

Who it is for

Municipalities, urban planners, architects, public health teams and energy companies.

Public sources we plan to start from

Listing a source does not mean we have a partnership with it. These are public datasets we plan to evaluate.

Other use cases

Early access

Want to pilot this use case?

Tell us what you would like to model. Pilot partners help decide what we build first.