California and Cypress Ave

Monitoring Station · South San Francisco, United States
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
10 5pm
11
12
7 8pm
7
7
7 11pm
7
7
7 2am
7
7
7 5am
7
19
— 8am
—
—
— 11am
—
—
— 2pm
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Station readings
10
11
12
CAMS model adj -18
37
25
25
25
25
25
25
25
25
25
25
25
25
25
37

Air Quality Trend (24h)

PM2.52.9 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

16
Cypress and Pine Playlot
0.1 km PM2.5: 3.8 µg/m³
12
California and Hawthorn Pl
0.3 km PM2.5: 2.9 µg/m³
17
Rise South City Office
0.6 km PM2.5: 4.1 µg/m³
10
Gardiner Park
0.8 km PM2.5: 2.5 µg/m³
10
Grand and Magnolia St
1.1 km PM2.5: 2.5 µg/m³
9
Orange Memorial Park
1.7 km PM2.5: 2.2 µg/m³
9
Buri Buri Park
3.1 km PM2.5: 2.2 µg/m³
11
Brentwood Park
3.2 km PM2.5: 2.7 µg/m³

Nearby Cities

16 South San Francisco 15 San Bruno 16 Visitacion Valley 12 Millbrae 15 Daly City 16 Bayview-Hunters Point 11 Pacifica 12 Burlingame 16 Noe Valley

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T20:34 UTC.