Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
52 11pm
54
54
74 2am
74
74
74 5am
74
74
54 8am
54
54
54 11am
47
54
— 2pm
—
—
— 5pm
—
—
— 8pm
—
—
CAMS model adj +20
34
34
34
54
54
54
54
54
54
34
34
34
34
27
34

Air Quality Forecast (24h)

PM2.512.6 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

25
Berkeley-Palo Alto
5.9 km PM2.5: 6.1 µg/m³
28
Emerald Hills
6.5 km PM2.5: 6.8 µg/m³
33
Acterra!
10.5 km PM2.5: 7.9 µg/m³
33
N Foothhill Blvd
21.4 km PM2.5: 7.9 µg/m³
31
Environment Education Center
22.6 km PM2.5: 7.4 µg/m³
44
JFK Middle School
23.4 km PM2.5: 10.6 µg/m³
28
Belle Air School
23.7 km PM2.5: 6.8 µg/m³
32
Garden Ave Residence
23.8 km PM2.5: 7.7 µg/m³

Nearby Cities

63 Redwood City 68 Menlo Park 64 San Carlos 68 East Palo Alto 68 Palo Alto 64 Belmont 64 Foster City 63 Los Altos 91 San Mateo

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T02:57 UTC.