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

San Francisco

San Francisco County, California

2026-05-09 21:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
9
O3
μg/m³
45
CO
μg/m³
125
NO2
μg/m³
2.1
Weather
  • ℃
  • ℉
17℃
70%
41 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • CO
  • NO2
Places included
San Francisco
AQI 20
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 50
Brisbane
AQI 50
Daly City
AQI 50
Broadmoor
AQI 50
Sausalito
AQI 34
Tiburon
AQI 34
Belvedere
AQI 34
Colma
AQI 50
Alameda
AQI 50
South San Francisco
AQI 50
Oakland
AQI 48