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

San Francisco

San Francisco, California

2026-09-01 21:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
49.3
PM2.5
μg/m³
3
NO2
μg/m³
3.3
CO
μg/m³
125
Weather
  • ℃
  • ℉
20℃
58%
24 kph
0 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 16
Brisbane
AQI 5
Alameda
AQI 5
Daly City
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Broadmoor
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Colma
AQI 5
Oakland
AQI 21
South San Francisco
AQI 5
Emeryville
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Sausalito
AQI 5
Tiburon
AQI 3