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@ecmwf

European Centre for Medium-Range Weather Forecasts

Providing software to work with meteorological data and services

Welcome to ECMWF GitHub!

ECMWF is the European Centre for Medium-Range Weather Forecasts.

Have a look at some of our popular topics:

  • earthkit for weather and climate tools in Python
  • anemoi for developing machine learning weather forecasting models
  • ecflow for workflow management
  • mars for data handling software and services

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  1. earthkit earthkit Public

    Python tools to work with weather and climate data

    Python 176 9

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 245 98

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 287 43

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 56 15

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 102 72

Repositories

Showing 10 of 153 repositories
  • fdb Public

    Fdb is a domain-specific object store for meteorological objects

    ecmwf/fdb’s past year of commit activity
    C++ 39 Apache-2.0 13 16 10 Updated Jan 13, 2026
  • forecast-in-a-box Public

    Forecast-In-A-Box is a prototype system to integrate ECMWF ML Models and products into a self contained box

    ecmwf/forecast-in-a-box’s past year of commit activity
    Python 6 Apache-2.0 4 32 5 Updated Jan 13, 2026
  • anemoi-plugins-ecmwf Public

    Anemoi Plugins as developed by ECMWF

    ecmwf/anemoi-plugins-ecmwf’s past year of commit activity
    Python 0 Apache-2.0 0 1 0 Updated Jan 13, 2026
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core’s past year of commit activity
    Python 102 Apache-2.0 72 127 (7 issues need help) 38 Updated Jan 13, 2026
  • metkit Public

    Toolkit for manipulating and describing meteorological objects, implementing the MARS language and associated processing and semantics.

    ecmwf/metkit’s past year of commit activity
    C++ 6 Apache-2.0 11 1 6 Updated Jan 13, 2026
  • earthkit-transforms Public

    A library of software tools to support people working with climate and meteorology data

    ecmwf/earthkit-transforms’s past year of commit activity
    Python 7 Apache-2.0 1 14 3 Updated Jan 13, 2026
  • downstream-ci Public
    ecmwf/downstream-ci’s past year of commit activity
    Python 0 0 3 6 Updated Jan 13, 2026
  • pygeoapi Public Forked from geopython/pygeoapi

    pygeoapi is a Python server implementation of the OGC API suite of standards. The project emerged as part of the next generation OGC API efforts in 2018 and provides the capability for organizations to deploy a RESTful OGC API endpoint using OpenAPI, GeoJSON, and HTML. pygeoapi is open source and released under an MIT license.

    ecmwf/pygeoapi’s past year of commit activity
    0 307 0 0 Updated Jan 13, 2026
  • ecflow Public

    ECMWF's workflow manager

    ecmwf/ecflow’s past year of commit activity
    C++ 56 Apache-2.0 15 11 6 Updated Jan 13, 2026
  • ecmwf/reusable-workflows’s past year of commit activity
    Python 0 Apache-2.0 0 0 8 Updated Jan 13, 2026