Fetch hourly air quality forecast (PM2.5, ozone, pollen) for a location using Open-Meteo's Air Quality API
domain: air-quality-api.open-meteo.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Call GET https://air-quality-api.open-meteo.com/v1/air-quality with latitude/longitude and hourly variables (pm2_5, pm10, ozone, european_aqi, us_aqi, pollen types).
Choose between European CAMS (11km) and global CAMS (45km) coverage — resolution and variable availability differ by region.
Request the forecast horizon (up to about 5 days); use the domains parameter if you need to force a specific CAMS model.
Combine with the standard weather forecast API in a separate call if meteorological context alongside pollutant levels is needed.
Cache responses since air-quality forecasts update on a coarser cycle than short-term weather forecasts.
Known gotchas
Pollen variables are only available for the European domain, not globally.
us_aqi and european_aqi use different calculation methodologies — pick the one matching your regulatory/reporting context.
Like other Open-Meteo endpoints, heavy use requires either staying under free-tier limits or subscribing to a commercial API key.
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