ERA-Interim production stopped on 31st August 2019

For ERA-Interim (1st January 1979 to 31st August 2019) access through the ECMWF Web API stopped on 01 June 2023

Its successor ERA5 is available from the Climate Data Store (CDS) (What are the changes from ERA-Interim to ERA5?) and users are strongly advised to migrate to ERA5 (How to download ERA5).

For those users who still need access to ERA-Interim after 01 June 2023, they can do so as per instructions below.

Table of Contents

1. Learn about ERA-Interim data

  1. Read What is ERA-Interim.
  2. Browse the ERA-Interim catalogue and make sure the data you are interested in is available in ERA-Interim. A demonstration (for ERA5 but the same principle applies for ERA-Interim) is available as part of the video tutorial below:

    Full Transcript (pdf)

  3. Read the ERA-Interim data documentation and take note of the parameters (fields) you want to use, and of the corresponding values for data type, stream, level type (surface, pressure levels, model levels, etc) base time and forecast steps.

2. License agreement

Read the Conditions of Use and accept the agreement here.

3. Browse and retrieve ERA-Interim data via the CDS API

Until further notice, access to ERA-Interim has now been enabled via the API of the Climate Data Store (CDS). The mechanism is very similar to that of ERA5-complete.

Data can only be retrieved in a programmatic way, via running a script. There is no possibility for interactive downloads.

Instructions can be found here.

This document has been produced in the context of the Copernicus Climate Change Service (C3S).

The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation agreement signed on 11/11/2014). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose.

The users thereof use the information at their sole risk and liability. For the avoidance of all doubt, the European Commission and the European Centre for Medium-Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view.