Global weather forecast API for non-commercial use.
Open-Meteo API is a free Weather API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Open-Source ☀️ Weather API with free access for non-commercial use. No API Key required ✅. Accurate weather forecasts for any location. Open-Meteo provides high-resolution open data ranging from 1 to 11 kilometres from national weather services. With a user-friendly JSON API, integrating weather da…
Details from open-meteo.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Data from Personal Weather Stations called senseBoxes
US coastal tides, water levels, currents and meteorological observations
The Open-Meteo API is provided by Open-Meteo.com (open-meteo.com). Open-Source ☀️ Weather API with free access for non-commercial use. No API Key required ✅. Accurate weather forecasts for any location. Open-Meteo provides high-resolution open data ranging from 1 to 11 kilometres from national weather services. With a user-friendly JSON API, integrating weather da…
Yes. The Open-Meteo API is listed in the Weather category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Open-Meteo API requires no authentication, so you can start making requests without signing up.
Yes. The Open-Meteo API supports CORS, so front-end JavaScript can call it directly.
Yes. The Open-Meteo API is served over HTTPS, so it's safe to use in production.