San Diego Air Quality
Current air-quality information for San Diego, United States.
Air quality is generally considered satisfactory.
World Air Quality Index Project (WAQI) · Updated 2026-10-17T17:00:00-07:00Health context
At the current AQI of 46, San Diego is in the Good category on the displayed AQI scale. Most people can continue normal outdoor activities. Current pollutant values shown for San Diego are PM2.5 38 µg/m³, PM10 46 µg/m³, O₃ 24.1 µg/m³. The current reading is identified on this page as World Air Quality Index Project (WAQI).
Air-quality information is not medical advice. People with asthma, heart or lung disease, children, older adults and other sensitive groups may need to take additional precautions when pollution is elevated.
Recent History & Forecast
This chart shows atmospheric-model AQI history and forecast from Open-Meteo / Copernicus Atmosphere Monitoring Service (CAMS) model. It is separate from any monitoring-station observation shown in the Current AQI card.
What does AQI 46 mean in San Diego?
San Diego currently has an AQI of 46, which falls in the Good category. This indicates relatively low overall air pollution on the displayed AQI scale. Normal outdoor activity is generally appropriate for most people. The pollutant values currently shown for San Diego are PM2.5 38 µg/m³, PM10 46 µg/m³, O₃ 24.1 µg/m³. The displayed current conditions are identified as World Air Quality Index Project (WAQI).
Nearby cities
- Chula Vista air quality — approximately 11 km away
- Tijuana air quality — approximately 28 km away
- Oceanside air quality — approximately 57 km away
- Ensenada air quality — approximately 108 km away
- Irvine air quality — approximately 122 km away
- Huntington Beach air quality — approximately 131 km away
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