Weather · head-to-head
AviationWeather vs Open-Meteo
The legacy Text Data Server referenced by the original dataserver URL has been discontinued and replaced by the new Aviation Weather Center Data API, reachable at aviationweather.gov/data/api. It serves worldwide METAR/TAF, US/North-Atlantic PIREPs, global SIGMETs, and CONUS G-AIRMETs (which replaced text AIRMETs in January 2025) in raw text, JSON, GeoJSON, CSV, XML, or IWXXM, with no authentication but a 100-requests/minute rate limit.
Open-Meteo is an open-source weather API that blends forecast and historical data from national weather services like NOAA, DWD, and Meteo-France, automatically selecting the highest-resolution model available for a given location. It requires no API key for non-commercial use and covers specialized domains including marine conditions, air quality, flood risk, and long-range climate projections.
| AviationWeather | Open-Meteo | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | freemium |
| Formats | JSON, GeoJSON, XML, CSV, Text | JSON, CSV, XLSX, FlatBuffers |
| CORS | no | yes |
| HTTPS | Yes | Yes |
Open-Meteo supports CORS, while AviationWeather doesn't — pick Open-Meteo for direct browser calls.