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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 175 9

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 242 98

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 286 43

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 56 15

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 103 72

Repositories

Showing 10 of 153 repositories
  • multio Public

    MultIO is a runtime-configurable multiplexer for Weather Model output of GRIB data

    ecmwf/multio’s past year of commit activity
    Fortran 9 Apache-2.0 18 3 1 Updated Jan 8, 2026
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core’s past year of commit activity
    Python 103 Apache-2.0 72 127 (7 issues need help) 37 Updated Jan 8, 2026
  • 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 11 Updated Jan 8, 2026
  • plume Public
    ecmwf/plume’s past year of commit activity
    C++ 1 Apache-2.0 1 0 1 Updated Jan 8, 2026
  • earthkit-plots Public

    Visualisation tools and templates designed for earth science data.

    ecmwf/earthkit-plots’s past year of commit activity
    Python 15 Apache-2.0 8 18 7 Updated Jan 8, 2026
  • WeatherGenerator Public

    The repository of the WeatherGenerator project

    ecmwf/WeatherGenerator’s past year of commit activity
    Python 97 Apache-2.0 49 241 (13 issues need help) 33 Updated Jan 8, 2026
  • eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    ecmwf/eccodes’s past year of commit activity
    C++ 242 Apache-2.0 98 1 9 Updated Jan 8, 2026
  • ecmwf/reusable-workflows’s past year of commit activity
    Python 0 Apache-2.0 0 0 6 Updated Jan 8, 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 8, 2026
  • ecmwf/anemoi-datasets’s past year of commit activity
    Python 60 Apache-2.0 52 66 (1 issue needs help) 15 Updated Jan 8, 2026