1. North America
  2. United States
  3. California
  4. San Francisco County
  5. San Francisco

San Francisco

San Francisco, California

2026-09-03 01:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
55.7
NO2
μg/m³
3.5
CO
μg/m³
125
PM2.5
μg/m³
0
Weather
  • ℃
  • ℉
20℃
68%
32 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • NO2
  • CO
  • PM2.5
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 25
Brisbane
AQI 39
Alameda
AQI 17
Daly City
AQI 17
Broadmoor
AQI 17
Colma
AQI 17
Oakland
AQI 31
South San Francisco
AQI 39
Emeryville
AQI 17
Sausalito
AQI 6
Tiburon
AQI 6