IFS-HRES Available in the Dataset and Forecast APIs

The ECMWF high-resolution model IFS-HRES is now available in the Dataset API and, as a raw forecast package, in the Forecast API. A rapid-update variant is available in the Dataset API.

ECMWF opened IFS-HRES as public data on 1 October 2025 and meteoblue enabled it the same day, ingesting the feed via Windy's redistribution of it. IFS-HRES runs at 10 km resolution with global coverage, 3-hourly time steps and a 144-hour forecast horizon.

How to request it

In the Forecast API, IFS-HRES is available through the raw forecast package endpoint as ifshres-5min, -10min, -15min, -20min, -30min and -1h. It is not selectable through the domain parameter, which covers a different set of models. Raw forecast packages are priced at 96000 credits, so check the cost against your plan before building on them. Resolutions finer than the model's own 3-hourly step are interpolated.

The rapid-update variant

IFS-HRES-RR is stored as a separate domain at the same resolution, with hourly time steps and a shorter 72-hour forecast horizon. It fits short-range use cases where update frequency matters more than forecast length. The rapid-update variant is not among the raw forecast packages in the Forecast API.

Known data issues

Total precipitation is not available as a variable for IFS-HRES. Two closed periods of corrupted data are on record: dew point between 7 and 12 August 2024, and CAPE through 2025. Both windows have ended, but archive requests covering them will return affected values. IFS-HRES-RR has no known issues logged.