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  2. United States
  3. California
  4. San Francisco County
  5. San Francisco

San Francisco

San Francisco, California

2026-05-12 16:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
51.4
PM2.5
μg/m³
5
NO2
μg/m³
7.8
CO
μg/m³
250
Weather
  • ℃
  • ℉
13℃
86%
22 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 17
Brisbane
AQI 5
Alameda
AQI 8
Daly City
AQI 5
Broadmoor
AQI 5
Colma
AQI 5
Oakland
AQI 22
South San Francisco
AQI 5
Emeryville
AQI 8
Sausalito
AQI 5
Tiburon
AQI 6