Free Weather API Open-Meteo is an open-source weather API and offers free access for non-commercial use. No API key required. Start using it now!

Get detailed JSON hourly weather forecasts for up to 7 or 16 days by specifying the geographical coordinates and desired weather variables in the API endpoint. Discover the comprehensive …

Retrieve decades worth of data in less than a second with our lightning-fast API. Dive deep into historical weather records, uncover trends, and gain valuable insights with ease.

Open-Meteo offers feature-rich and simple JSON APIs with global coverage and up to 1 km resolution. Get started today and access the most accurate weather forecasts worldwide. Our …

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{ "error": true, "reason": "Parameter count must be between 1 and 100." }

Access accurate and comprehensive historical weather data with Open-Meteo's API. Explore global weather trends, analyze climate change, and optimize forecasts using reanalysis …

Seasonal Forecast APISub-Seasonal and Long Range Forecast for 7 Months

The API endpoint /v1/air-quality accepts a geographical coordinate, a list of weather variables and responds with a JSON hourly air quality forecast for 5 days.

This API uses Global Environmental Multiscale Model (GEM) from the Canadian weather service. Global and regional weather models are combined into a seamless prediction.