In the ECMWF data store (ECDS) established in 2026, users can find selection of WMO public datasets managed by ECMWF.
The ECDS is powered by CDS technology (access via CDS-API, discovery forms etc). It shares the same authentication system, so that users can access any dataset across all data stores ( CDS, ADS, EWDS, ECDS) with their ECMWF User account and the same API key which is shared between all data stores.
Currently, for access to different data stores ( cds.ecmwf.int , ecds.ecmwf.int , etc.) the user must have separate .cdsapirc files with the correct URL for given data store (this can change in near future). Alternatively, the URL and user token can be part of the Python client definition as per Examples in User guide for migration of S2S and TIGGE to ECDS . |
Find all information how to access a dataset in ECDS and the available tools and tutorials in the ECDS home page
Get data interactively (manually over the web) Users can download data interactively from the ECDS website using the Download Data tab form for given dataset... | ...or programmatically using the API service. API guidelines including Troubleshooting are provided! |
The data access to TIGGE and S2S is now being migrated from WEB-API to CDS-API (in ECDS). For more information about the timelines, please consult the dedicated page Decommissioning of ECMWF Public Datasets service. |
The comprehensive overview of the older and new ways how to access TIGGE or S2S data and the related tools is available in User guide for migration of S2S and TIGGE to ECDS. Users with experience getting the data via older WEB-API can found there information how to update their workflows. |
TIGGE and S2S have been the first datasets moved to ECDS. Follow the links below to the dedicated main web spaces for given dataset:
To discover available data and get them from ECDS, multiple options exist:
Discover and download sample data by using two available systems with different interface:
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