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

San Francisco

San Francisco County, California

2026-01-21 15:00

AQI (US)

Moderate

Pollutants|Pollens

PM2.5

μg/m³

19

NO2

μg/m³

38.4

CO

μg/m³

750

O3

μg/m³

2.1

Weather

10℃

84%

11 kph

0 of 11

Historical Data

Places included

Data Sources

http://www.airnow.gov/

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Cities Nearby

South San Francisco