Open-Meteo

Open-Meteo is an open-source weather API and offers free access for non-commercial use. No API key is required. You can use it immediately!

Head over to https://open-meteo.com! Stay up to date with our blog at https://openmeteo.substack.com.

Features

• Hourly weather forecast for up to 16 days
• Global weather models with 11 km and regional models up to 1.5 km resolution
• Weather model updates every hour for Europe and North America
• 80 years Historical Weather API
• Based on the best weather models: NOAA GFS with HRRR, DWD ICON, MeteoFrance Arome&Arpege, ECMWF IFS, JMA, GEM HRDPS, MET Norway
• Marine Forecast API, Air Quality API, Geocoding API, Elevation API, Flood API
• Lightning fast APIs with response times below 10 ms
• Servers located in Europe and North America with GeoDNS for best latency and high-availability
• No API key required, CORS supported, no ads, no tracking, not even cookies
• Free for non-commercial use with data under Attribution 4.0 International (CC BY 4.0)
• Source code available under AGPLv3

How does Open-Meteo work?

Open-Meteo utilizes open-data weather forecasts provided by national weather services. These services offer numerical weather predictions that are free to download. However, working with these models can be challenging, as it requires expertise in binary file formats, grid-systems, projections, and the fundamentals of weather predictions.

Like many other weather APIs, Open-Meteo integrates high-resolution local and global weather