Open-Meteo
Open source and free weather API with global models, historical data and hourly forecasts.
ABOUT
What is Open-Meteo?
Open-Meteo aggregates data from multiple global weather models such as ECMWF, GFS, MeteoFrance, DWD and others to provide hourly forecasts up to 16 days, historical data since 1940 and air quality models. No API key required for non-commercial use.
BEFORE YOU SIGN UP
What you should know
COMMUNITY
From the forums
It is one of the best-regarded services on the list. In r/webdev, r/homeassistant and r/learnpython it appears as the default recommendation when someone looks for a free weather API. It is valued for not requiring an API key, being open source and having accurate data. There are no relevant criticisms.
— Community sentiment · Reddit
SEE ALSO · Data & backend
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Guides mentioning Open-Meteo
ABOUT US
Honest, independent, no fluff.
No paid placements. Just a clear look at what this does, what it costs, and what to know before you commit.
FAQ
Questions, answered.
Can I use Open-Meteo in a commercial app?＋
Non-commercial use is completely free. For commercial apps there is a paid plan, but the cost is very low compared to other weather APIs.
What temporal and spatial resolution does Open-Meteo provide?＋
It offers hourly data at 1 km resolution in some regions. It combines models like ECMWF, GFS and others depending on the area of the world.