If you have the brilliant idea to point your software to this service, please first let me know at info_at_bosun_io as everything may and probably will change around here.
The server provides GRIB2 files cut from global weather and ocean forecast models to the requested area and forecast length, primarily for OpenCPN. The list of models is also available as JSON at /models.
| Model | Last run (UTC) | Processed | Status |
|---|---|---|---|
| ECMWF IFS 0.25° | 2026101812 | 2026-10-18 19:55 | ok |
| ECMWF AIFS 0.25° | 2026101812 | 2026-10-18 18:27 | ok |
| DWD ICON 0.25° | 2026101812 | 2026-10-18 16:18 | ok |
| DWD ICON 0.125° | 2026101812 | 2026-10-18 16:16 | ok |
| NOAA GFS 0.25° | 2026101812 | 2026-10-18 17:36 | ok |
| ECCC GDPS 0.15° | 2026101812 | 2026-10-18 18:01 | ok |
| Météo-France ARPEGE 0.25° | 2026101818 | 2026-10-18 23:00 | ok |
| NOAA RTOFS currents 0.25° | 20261018 | 2026-10-18 15:58 | ok |
| NOAA RTOFS currents 0.1° | 20261018 | 2026-10-18 16:06 | ok |
| CMEMS SMOC currents incl. tidal 1/12° | 2026101800 | 2026-10-18 08:21 | ok |
The files served are derived from the original data of the providers below and are not the original data: they are filtered to selected parameters, cut to the requested area and forecast length, repacked, and for some models regridded (DWD ICON, NOAA RTOFS) or relabelled. None of the providers endorses this service or is affiliated with it.
Copyright © 2026 European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. This data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0), see the ECMWF terms of use and ECMWF open data. ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
Source: Deutscher Wetterdienst (DWD), www.dwd.de, opendata.dwd.de. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0), see the DWD legal notices. ICON data is regridded from the icosahedral model grid to a regular latitude/longitude grid.
Source: NOAA National Centers for Environmental Prediction (NCEP), www.noaa.gov, data from NOMADS. NOAA data is in the public domain, see the NOAA/NWS disclaimer and terms of data usage. NOAA does not endorse this service, and the data served here is modified (RTOFS is regridded from the curvilinear HYCOM grid), not original NOAA data.
Data Source: Environment and Climate Change Canada, MSC Open Data. Contains information licensed under the Data Server End-use Licence of Environment and Climate Change Canada. The information is provided "as is", without warranty of any kind.
Source: Météo-France, meteofrance.com, data from meteo.data.gouv.fr. Reused under the Licence Ouverte / Open Licence 2.0 (Etalab). Date of last update: the ARPEGE last run in the table above.
Generated using E.U. Copernicus Marine Service Information; https://doi.org/10.48670/moi-00016. Source: Copernicus Marine Service, product GLOBAL_ANALYSISFORECAST_PHY_001_024, used under the Copernicus Marine Service licence.
The service is provided free of charge on a best effort basis by a volunteer, with no guarantees whatsoever. Its operator accepts no liability for its availability, for any error or omission in the data, or for any loss or damage arising from their use. Forecasts are not a substitute for official warnings and good seamanship; do not rely on them as your only source of information for navigation.