Skip to content
@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

Pinned Loading

  1. earthkit earthkit Public

    Python tools to work with weather and climate data

    Python 162 8

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 234 97

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 271 43

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 53 15

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 96 67

Repositories

Showing 10 of 153 repositories
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core’s past year of commit activity
    Python 96 Apache-2.0 67 114 (5 issues need help) 44 Updated Nov 21, 2025
  • WeatherGenerator Public

    The repository of the WeatherGenerator project

    ecmwf/WeatherGenerator’s past year of commit activity
    Python 87 Apache-2.0 43 231 (7 issues need help) 48 Updated Nov 21, 2025
  • eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    ecmwf/eccodes’s past year of commit activity
    C++ 234 Apache-2.0 97 2 11 Updated Nov 21, 2025
  • fdb Public

    Fdb is a domain-specific object store for meteorological objects

    ecmwf/fdb’s past year of commit activity
    C++ 36 Apache-2.0 13 16 14 Updated Nov 21, 2025
  • 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 9 1 5 Updated Nov 21, 2025
  • ecmwf/anemoi-inference’s past year of commit activity
    Python 33 Apache-2.0 24 12 11 Updated Nov 21, 2025
  • 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 2 5 Updated Nov 21, 2025
  • downstream-ci Public
    ecmwf/downstream-ci’s past year of commit activity
    Python 0 0 1 6 Updated Nov 21, 2025
  • open-ecpds Public

    OpenECPDS boosts the efficiency and productivity of data services by using proven and innovative technologies. It offers a portable, adaptable application for diverse environments, with a user-friendly tool for managing data acquisition, dissemination with push/pull mechanisms, and a notification system, all using standard protocols.

    ecmwf/open-ecpds’s past year of commit activity
    Java 5 Apache-2.0 2 0 0 Updated Nov 21, 2025
  • IonBeam Public

    A streaming library for IoT data.

    ecmwf/IonBeam’s past year of commit activity
    Jupyter Notebook 2 Apache-2.0 0 0 1 Updated Nov 21, 2025