stated on the page: open-meteo.com

--- title: Open-Meteo summary: One HTTP API in front of many national models (ECMWF, GFS, ICON, ARPEGE/AROME, UKMO and more), no key for non-commercial use. mount:

Open data and APIs

Left: what points at it. Right: what it points at. Each line carries its verb; a dashed line was not confirmed on the page cited, or the site does not say; the table below gives the page and the time read for each. From data-open-meteo.json

--- # Open-Meteo > Kept by incident.meteorology@web-summit.dinis, 11 November 2026, 11:36 UTC [Where a forecast comes from](../index.md) · Open data and APIs · id `data-open-meteo` · [as data](data-open-meteo.json) One HTTP API in front of many national models (ECMWF, GFS, ICON, ARPEGE/AROME, UKMO and more), no key for non-commercial use. **Address:** [https://open-meteo.com/](https://open-meteo.com/) (leaves this site) **Our page about the site** (by incident.weatherwatch@): [research/weather-sites](../../research/weather-sites/sites/openmeteo.md) ## What it is connected to, and who says so **The same thing elsewhere on this site:** `source:open-meteo` in [the register of sources](../../sources/registry.json) (a join we state, not a match by address). | This | Verb | That | The page that says so | Read | Check | |---|---|---|---|---|---| | Open-Meteo | **redistributes** | [ECMWF IFS](model-ecmwf-ifs.md) | [open-meteo.com](https://open-meteo.com/en/docs/ecmwf-api): "ECMWF Forecast API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme ECMWF Weather Forecast API Full Resolution 1-hourly IFS HRES" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [GFS (NOAA/NCEP)](model-gfs.md) | [open-meteo.com](https://open-meteo.com/en/docs/gfs-api): "GFS & RRFS API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme GFS & RRFS Forecast API Global GFS model combined with 3-km RRFS" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [ICON (DWD)](model-icon.md) | [open-meteo.com](https://open-meteo.com/en/docs/dwd-api): "DWD ICON API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme DWD ICON API Open data weather forecasts from the German weather service" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [ARPEGE (Météo-France)](model-arpege.md) | [open-meteo.com](https://open-meteo.com/en/docs/meteofrance-api): "Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme Météo-France API Global ARPEGE model combined with high resolution AROME model Météo-France Weather Forecast DWD Germany NOAA U.S." | 11:28 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [AROME (Météo-France)](model-arome.md) | [open-meteo.com](https://open-meteo.com/en/docs/meteofrance-api): "API Docs Animations GitHub X Toggle theme Météo-France API Global ARPEGE model combined with high resolution AROME model Météo-France Weather Forecast DWD Germany NOAA U.S. Météo-France ECMWF UK Met Office JMA Japan Mete" | 11:28 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [Met Office Unified Model](model-ukmo-um.md) | [open-meteo.com](https://open-meteo.com/en/docs/ukmo-api): "UK Met Office API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme UK Met Office API Weather forecasts from the United Kingdom's" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **redistributes** | [ECMWF AIFS](model-ecmwf-aifs.md) | [open-meteo.com](https://open-meteo.com/en/docs/ecmwf-api): "transition-none"> ECMWF IFS 0.25° svg]:size-3.5 grid place-content-center text-current transition-none"> ECMWF AIFS 0.25° Single Note: The default Best Match provides the best forecast for any given location worldwide. S" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **takes its data from** | [ECMWF open data](data-ecmwf-open.md) | [open-meteo.com](https://open-meteo.com/en/licence): "wave forecasts from Deutscher Wetterdienst DWD ( CC-BY Licence ) Atmospheric, ensemble and wave forecasts from European Centre for Medium-Range Weather Forecasts ECMWF ( CC-BY Licence ) Atmospheric, ensemble and wave for" *Open-Meteo's licence page lists each upstream service with its licence.* | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **takes its data from** | [DWD open data server](data-dwd-open.md) | [open-meteo.com](https://open-meteo.com/en/licence): "utilises open-data from various national weather services including: Atmospheric, ensemble and wave forecasts from Deutscher Wetterdienst DWD ( CC-BY Licence ) Atmospheric, ensemble and wave forecasts from European Centr" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **takes its data from** | [NOAA NOMADS (NCEP model output)](data-noaa-nomads.md) | [open-meteo.com](https://open-meteo.com/en/licence): "Centre for Medium-Range Weather Forecasts ECMWF ( CC-BY Licence ) Atmospheric, ensemble and wave forecasts from NOAA NCEP ( Licence ) Atmospheric and ensemble forecasts from Canadian Meteorological Centre CMC ( Licence )" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **published by** | [The Open-Meteo project](body-open-meteo.md) | [open-meteo.com](https://open-meteo.com/en/docs): "🌦️ Docs / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme Weather Forecast API Seamless integration of high-resolution weather models with" | 11:29 UTC, 11 Nov | stated on the page | | Open-Meteo | **visualised by** | [Open-Meteo](site-openmeteo.md) | [open-meteo.com](https://open-meteo.com/): "🌤️ Free Open-Source Weather API / Open-Meteo.com Open-Meteo Home Features Pricing API Docs Animations GitHub X Toggle theme Free Weather API Free weather forecast and historical weather API — 30+ models, historical" *The front page of the API itself; its upstream services are on the data node.* | 11:30 UTC, 11 Nov | stated on the page | ## Licence: what we may do with it **Open-Meteo (API data)**: CC BY 4.0 for the data; the free API is for non-commercial use ([open-meteo.com](https://open-meteo.com/en/licence), read 11:29 UTC, 11 Nov, stated on the page). | Read | Store | Show | Transform | Attribution | |---|---|---|---|---| | yes, non-commercial use on the free API | yes | yes, with attribution | yes, with attribution | "Weather data by Open-Meteo.com", linked; a change must be stated. | Free API: non-commercial only, fewer than 10,000 calls a day (its terms page). A newsroom that sells advertising or subscriptions should use the paid plan or the models' own open data. ## What it offers for Lisbon and Madeira this week Hourly gusts, mean wind, rain, pressure and some 80 other variables for any point, from each model separately: ECMWF IFS and AIFS, GFS, ICON, Météo-France (ARPEGE/AROME), UKMO and others, in one call. The only source here that gives several models for Lisbon and Funchal as plain JSON. - **Endpoint:** `https://api.open-meteo.com/v1/forecast` - **Key:** none (non-commercial use) - **Format:** JSON (also CSV, XLSX, FlatBuffers) - **Size:** 4.3 KB for two places × six models × four variables × 48 hours (our probe) - **Cadence:** each model as its centre publishes it (ECMWF every 6 h, GFS every 6 h, ICON every 3 to 6 h); the API follows within hours - **This week** (probe read 02:29 UTC, 11 Nov): Read 02:29 UTC on 11 November: both places answered for 11 and 12 November from all six models asked. It snaps to its grid: Lisbon was answered at 38.75 N, 9.25 W. - **How to read it:** `One GET with latitude, longitude, hourly=…, models=…, start_date, end_date.` - **Limits:** Free API non-commercial only, under 10,000 calls a day (its terms). A grid cell, not a station: mountains and coast are smoothed. - **A small sample, as returned:** [open-meteo-lisbon-funchal.json](../samples/open-meteo-lisbon-funchal.json) --- Not a warning service: this page explains where data comes from. For warnings follow [IPMA](https://www.ipma.pt/pt/otempo/prev-sam/) and ANEPC.