San Francisco Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

San Francisco

San Francisco County, California

2025-03-18 18:00

AQI (China)

Excellent

Pollutants|Pollens

O3

μg/m³

57.9

NO2

μg/m³

11.7

PM2.5

μg/m³

4

CO

μg/m³

500

Weather

12℃

59%

15 kph

4 of 11

Historical Data

Places included

Data Sources

http://www.airnow.gov/

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Cities Nearby

South San Francisco