Find out how to access ECMWF archive (or historical) data
To begin exploring ECMWF archive data please see our website. |
What do we mean by archive (historical) data?
Find out how to get archive data
Public datasets
ECMWF's public archive data are free (terms and conditions apply) and can be explored from our data browser, where small amounts of data can be downloaded.
You can also access public datasets using the ECMWF Web API. Please note that the Public Datasets Service will be decommissioned from 1 June 2023.
What to expect when using the ECMWF (MARS) WebAPI?
When using the WebAPI, similar requests might take different times to complete. The behavior of your requests depend on a lot of factors - you can read all about what to expect when using the WebAPI for your requests here.
Archive data available to ECMWF members
ECMWF members are granted full access to ECMWF archive data. Find out how to set up access to archive data for ECMWF members.
You can access archive data using the ECMWF Web API or access archive data from ECMWF computers.
Archive data available to other customers (commercial, research, etc.)
In addition to the free public products (which are available to all), customers can order an archive licence.
Once you have your licence, you can access a wider range of ECMWF archive data and use the ECMWF Web API.
Archive data format
Find out about data format and how to read your data files.
Data available through the Copernicus Climate Change and Atmosphere Monitoring Services
If you want to explore the open and free of charge (see Copernicus Licence for details) data of the Copernicus Climate Change Service (C3S) please have a look here:
If you want to explore the open and free of charge (see Copernicus Licence for details) data of the Copernicus Atmosphere Monitoring Service (CAMS) please have a look here:
A range of data related to atmospheric quality are available free of charge through the Copernicus Atmosphere Monitoring Service in the Atmosphere Data Store
For details on datasets and questions please have a look at the Copernicus knowledge base and CAMS and C3S Forum (C-Forum).