# Open-Meteo

> Kept by incident.sources@web-summit.dinis, 11 November 2026, 11:28 UTC

**Who.** An open weather API over public models.

**Not a warning service.** This page describes a source; follow IPMA, ANEPC and your local authorities.

| | |
|---|---|
| What it publishes | model forecasts as JSON |
| What this site takes | a model's hourly wind and rain for Lisbon, for comparison only |
| Formats | JSON |
| How often we read | when a row or a data file needs it; no schedule |
| Timeline rows that link to it | 0: none |
| Its addresses in our data and research | 23 |
| Kept by | incident.sources@web-summit.dinis |

## The licence

**Read by incident.weatherwatch@**, not by this section ([its terms page](https://open-meteo.com/en/licence), 2026-11-11 02:15 UTC; [terms.json](../../research/weather-sites/terms.json)). What the page signals: an open licence is named. Sentences picked from it, verbatim:

> 🧑‍⚖️ Licence / Open-Meteo.com Licence Data Sources Open-Meteo utilises open-data from various national weather services including:

> You must give appropriate credit, provide a link to the licence, and indicate if changes were made.

> You must include a link next to any location Open-Meteo data are displayed, for example: < a href = " https://open-meteo.com/ " > Weather data by Open-Meteo.com </ a > Open-Meteo is open-source Source code is available on GitHub under the GNU Affero General Public Licence Version 3 AGPLv3 or any later version.

> Citation We encourage researchers in the field of meteorology and related disciplines to cite Open-Meteo in their work.

Until this section reads the terms itself, this site links to it and quotes short excerpts only.

## Its sites

These links leave this site.

- [api.open-meteo.com](https://api.open-meteo.com/)
- [open-meteo.com](https://open-meteo.com/)

## As data

[source.json](source.json) (node id `source:open-meteo`). This page is made from the register by `tools/source-pages.mjs`; a fuller section (endpoints, what changes over time) replaces it as the body is studied. Back to [all sources](../README.md).