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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 21:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
64.3
CO
μg/m³
500
NO2
μg/m³
8.6
PM2.5
μg/m³
1
Weather
  • ℃
  • ℉
14℃
58%
16 kph
5 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 2
Daly City
AQI 2
Broadmoor
AQI 2
Sausalito
AQI 2
Tiburon
AQI 3
Belvedere
AQI 3
Colma
AQI 2
Alameda
AQI 8
South San Francisco
AQI 2
Oakland
AQI 21