Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
24 9pm
31
31
31 12am
51
51
51 3am
51
51
51 6am
51
51
51 9am
51
31
— 12pm
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—
— 3pm
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— 6pm
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CAMS model adj -3
34
34
34
34
54
54
54
54
54
54
54
54
54
54
34

Air Quality Forecast (24h)

PM2.55.8 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

52
Redwood City, San Mateo, California
0.0 km PM2.5: 12.6 µg/m³
12
Berkeley-Palo Alto
5.9 km PM2.5: 2.8 µg/m³
13
Emerald Hills
6.5 km PM2.5: 3.2 µg/m³
15
Acterra!
10.5 km PM2.5: 3.6 µg/m³
14
N Foothhill Blvd
21.4 km PM2.5: 3.3 µg/m³
13
Environment Education Center
22.6 km PM2.5: 3.1 µg/m³
17
JFK Middle School
23.4 km PM2.5: 4.0 µg/m³
25
Belle Air School
23.7 km PM2.5: 5.9 µg/m³

Nearby Cities

31 Redwood City 27 Menlo Park 31 San Carlos 27 East Palo Alto 27 Palo Alto 31 Belmont 43 Foster City 27 Los Altos 43 San Mateo

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T00:12 UTC.