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

San Francisco

San Francisco County, California

2026-05-09 23:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
8
O3
μg/m³
47.1
CO
μg/m³
125
NO2
μg/m³
1.4
Weather
  • ℃
  • ℉
16℃
72%
26 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • CO
  • NO2
Places included
San Francisco
AQI 21
Data Sources
http://www.airnow.gov/

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Cities Nearby

San Francisco
AQI 45
Brisbane
AQI 45
Daly City
AQI 45
Broadmoor
AQI 45
Sausalito
AQI 34
Tiburon
AQI 34
Belvedere
AQI 34
Colma
AQI 45
Alameda
AQI 45
South San Francisco
AQI 45
Oakland
AQI 42