ECMWF’s open data policy

From 9 October 2020, ECMWF has made hundreds of forecast charts free and accessible to all. These include medium-range, extended-range and long-range forecast charts of temperature, wind, precipitation, clouds and ocean waves. Probability-based information and the likelihood of extreme conditions are also included. In addition, there is now access to recent and past forecasts, analyses, climatological data and research experiments held in MARS (Meteorological Archival and Retrieval System), ECMWF’s data repository.

Not only is there no charge for the information, but users can also share, redistribute and adapt the information as they require, even for commercial applications, as long as they acknowledge the source as ECMWF.

• More information about ECMWF’s move towards a policy of open data