Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
74 4pm
53
49
49 7pm
49
49
49 10pm
42
42
49 1am
49
49
49 4am
49
49
— 7am
—
—
— 10am
—
—
— 1pm
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Station readings
74
53
CAMS model adj +15
34
34
34
34
34
34
34
27
27
34
34
34
34
34
34

Air Quality Forecast (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

20
Berkeley-Palo Alto
5.9 km PM2.5: 4.7 µg/m³
19
Emerald Hills
6.5 km PM2.5: 4.6 µg/m³
24
Acterra!
10.5 km PM2.5: 5.7 µg/m³
20
N Foothhill Blvd
21.4 km PM2.5: 4.8 µg/m³
16
Environment Education Center
22.6 km PM2.5: 3.9 µg/m³
26
JFK Middle School
23.4 km PM2.5: 6.2 µg/m³
21
Belle Air School
23.7 km PM2.5: 5.1 µg/m³
24
Garden Ave Residence
23.8 km PM2.5: 5.8 µg/m³

Nearby Cities

39 Redwood City 31 Menlo Park 31 San Carlos 23 East Palo Alto 21 Palo Alto 28 Belmont 27 Foster City 24 Los Altos 26 San Mateo

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T19:31 UTC.