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

San Francisco

San Francisco, California

2026-02-18 22:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
55.7
CO
μg/m³
375
NO2
μg/m³
9
PM2.5
μg/m³
3
Weather
  • ℃
  • ℉
11℃
66%
19 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • CO
  • NO2
  • PM2.5
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 56
Brisbane
AQI 5
Alameda
AQI 12
Daly City
AQI 5
Broadmoor
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Colma
AQI 5
Oakland
AQI 68
South San Francisco
AQI 5
Emeryville
AQI 7
Sausalito
AQI 5
Tiburon
AQI 7