data api · Germany

DWD ICON Weather Model Archive

Archives of Deutscher Wetterdienst (DWD, the German Meteorological Service) ICON weather model output in grib2 format. DWD maintains only a short rolling window of files on their servers, some of which we archive here.

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What's in it

Data offered docs-verified: ICON-EU NWP model output, all vertical model levels · all NWP variables (single-level and model-level fields) · GRIB2 files, copied unmodified from DWD · subset of variables in cloud-optimized Icechunk Zarr format
Coverage llm-inferred: Europe (ICON-EU model domain)
Resolution llm-inferred: Spatial: regular lat-lon grid (cell spacing not stated in DOCS). Temporal: 4 model runs per day (00, 06, 12, 18 UTC).
Update frequency docs-verified: 4 times per day
Formats docs-verified: GRIB2 (bzip2-compressed, .grib2.bz2) · Icechunk Zarr (subset of variables, cloud-optimized)
Access docs-verified: Public; CC BY 4.0 licence; anonymous HTTPS/S3 access via data.source.coop

Useful for

Use cases llm-inferred: Retrospective ICON-EU forecast fields for reconstructing rainfall and temperature during a past storm event · Forecast-versus-observed precipitation comparison for model validation on a flood or drainage study · Bulk extraction of ICON-EU GRIB2 fields for catchment-scale meteorological inputs
Audience llm-inferred: hydrologists · flood consultants · drainage engineers · GIS analysts · climate and meteorological data scientists

Limitations

Constraints docs-verified: Pressure-level files are not archived · Only ICON-EU model output is currently archived · Only some of DWD's files are archived, not the full DWD set · Zarr format covers only a subset of variables · Directory listings are not atomic; the latest run's directory may be incomplete while it is being written · Each run is about 59 GiB (77,805 files); about 86 TiB per year

Licence: see product README
Authentication: Public; anonymous HTTPS/S3 access via data.source.coop
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 14/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Verified via Source Cooperative API /api/v1/products/dynamical (public product, updated 2026-07-16).

Metadata observed 14/10/2026 · research sweep: manual-2026-10-15 (source.coop)