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

San Francisco

San Francisco County, California

2025-03-18 22:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
66.4
CO
μg/m³
500
NO2
μg/m³
7.2
PM2.5
μg/m³
0
Weather
  • ℃
  • ℉
14℃
57%
21 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • CO
  • NO2
  • PM2.5
Places included
San Francisco
AQI 21
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 21
Brisbane
AQI 6
Daly City
AQI 6
Broadmoor
AQI 6
Sausalito
AQI 3
Tiburon
AQI 3
Belvedere
AQI 3
Colma
AQI 6
Alameda
AQI 6
South San Francisco
AQI 6
Oakland
AQI 24