License

Data Sources

Open-Meteo utilizes open-data from various national weather service including:

• Atmospheric, ensemble and wave forecasts from Deutscher Wetterdienst DWD (CC-BY License)
• Atmospheric, ensemble and wave forecasts from European Centre for Medium-Range Weather Forecasts ECMWF (CC-BY License)
• Atmospheric, ensemble and wave forecasts from NOAA NCEP (License)
• Atmospheric and ensemble forecasts from Canadian Meteorological Centre CMC (License)
• Atmospheric and wave forecasts from Météo-France (License)
• Atmospheric forecasts from Japan Meteorological Agency JMA (License)
• Atmospheric forecasts from Norwegian Meteorological Institute (CC-BY License)
• Atmospheric forecasts from Chinese Meteorological Administration CMA (CC-BY License)
• Atmospheric forecasts from Australian Bureau of Meteorology BOM (CC-BY License)
• Atmospheric forecasts from Royal Netherlands Meteorological Institute KNMI (CC-BY License)
• Atmospheric forecasts from Danish Meteorological Institute DMI (CC-BY License)
• Atmospheric forecasts from UK Met Office (CC-BY-SA License)
• Wave forecasts from Copernicus Marine Service (License)
• Weather reanalysis, air quality forecasts and elevation data from Copernicus Climate Change Service C3S (License)
• Flood forecasts from Global Flood Awareness System GloFAS (License)
• Location database from GeoNames (CC-BY License)
• Icons from Weather Icons (SIL OFL 1.1)

License

API data are offered under Attribution 4.0 International (CC BY 4.0)

You are free to share: copy and redistribute the material in any medium or format and adapt: remix, transform, and build upon the material.

Attribution: You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

You must include a link next to any location, Open-Meteo data are displayed like:

<a href="https://open-meteo.com/">Weather data by Open-Meteo.com</a>

Open-Meteo is open-source

Source code is available on GitHub under the GNU Affero General Public License Version 3 AGPLv3 or any later version. You can find the license here.

Citation

We encourage researchers in the field of meteorology and related disciplines to cite Open-Meteo in their work. By acknowledging Open-Meteo as the source of weather data and forecasts used in their research, researchers contribute to the growing body of knowledge and advancements in the field. Citing Open-Meteo not only gives proper credit to the API but also promotes transparency, reproducibility, and collaboration within the scientific community. Together, let's foster a culture of recognition and support for open-source initiatives like Open-Meteo, ensuring that future researchers can benefit from the valuable resources it provides.

@software{Zippenfenig_Open-Meteo,
  author = {Zippenfenig, Patrick},
  doi = {10.5281/zenodo.7970649},
  license = {CC-BY-4.0},
  title = {Open-Meteo.com Weather API},
  year = {2023},
  copyright = {Creative Commons Attribution 4.0 International},
  url = {https://open-meteo.com/}
}