Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
31 3am
31
35
35 6am
35
35
35 9am
35
35
35 12pm
35
55
35 3pm
55
55
— 6pm
—
—
— 9pm
—
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— 12am
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Station readings
31
31
CAMS model adj +1
34
34
34
34
34
34
34
34
34
34
34
54
34
54
54

Air Quality Forecast (24h)

PM2.57.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

17
Redwood City, San Mateo, California
0.0 km PM2.5: 4.1 µg/m³
7
Berkeley-Palo Alto
5.9 km PM2.5: 1.7 µg/m³
11
Emerald Hills
6.5 km PM2.5: 2.6 µg/m³
12
Acterra!
10.5 km PM2.5: 2.9 µg/m³
12
N Foothhill Blvd
21.4 km PM2.5: 2.9 µg/m³
12
Environment Education Center
22.6 km PM2.5: 3.0 µg/m³
15
JFK Middle School
23.4 km PM2.5: 3.6 µg/m³
35
Belle Air School
23.7 km PM2.5: 8.4 µg/m³

Nearby Cities

15 Redwood City 11 Menlo Park 14 San Carlos 8 East Palo Alto 8 Palo Alto 14 Belmont 19 Foster City 12 Los Altos 18 San Mateo

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-30T06:25 UTC.