Free tool

Wind rose

Pick a city or type coordinates and the wind rose reads every hour of last year’s wind: where it comes from, how strong and how often it is calm.

Make the wind rose Wind and comfort on a site

Try it here, free

No account. Nothing to install.

Place

Prevailing wind from

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Calm hours

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0–2 m/s2–4 m/s4–6 m/s6–8 m/s8+ m/s

Every hour of last year at 10 m, from the Open-Meteo weather archive (ERA5 reanalysis, CC BY 4.0). Wind blowing from each direction; bars are hours, coloured by speed.

How to read it

Each bar points to where the wind blows from. Its length is how many hours it came from there; its colours split those hours by speed.

Using it in design

Shelter entrances and terraces from the prevailing wind, open spaces to summer breezes and plan for strong gusts between tall buildings.

Questions

Where does the data come from?

The Open-Meteo historical weather archive (ERA5 reanalysis), wind at 10 m, licensed CC BY 4.0.

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Start with any site on Earth

Search an address for a free preview: buildings, climate and sun angles, no account.

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