What it provides
AviationWeather.gov provides a public Data API for machine-to-machine access to aviation weather information.
NOAA Aviation Weather API
gov gives a public Data API for machine-to-machine access to aviation weather information.
Data and operations
It exposes METAR, TAF and other aviation-weather datasets, airport information and navigation-feature data, plus compressed cache files for larger current datasets.
Endpoints and products
Official documentation provides an OpenAPI YAML specification. Cache files include /data/cache/metars.cache.xml.gz, /data/cache/metars.cache.csv.gz, /data/cache/tafs.cache.xml.gz and SIGMET cache files.
Coverage and access
Airport information and several API datasets are worldwide, so Thai airports can be addressed by station/airport identifiers where supported.
Access and terms
The page does not state an API-key/authentication requirement. It does state a rate limit of 100 requests per minute and recommends cache files for large queries.
Updates
Current METAR cache files update once per minute; TAF cache updates every 10 minutes; some SIGMET caches update once per minute. The query database allows up to the previous 30 days.
Limits
Most endpoints return at most 400 entries, CORS is not permitted, and excessive requests can be blocked. Coverage varies by aviation product.
Research checked 2026-09-02. Access conditions and product details may have changed; consult the provider before integrating.
Open the source
Use the provider link for the latest information and any current access requirements.