Redwood City, San Mateo, California

Monitoring Station · Redwood City, United States
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
23 7pm
18
25
25 10pm
25
25
25 1am
25
25
25 4am
25
25
37 7am
37
37
— 10am
—
—
— 1pm
—
—
— 4pm
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Air Quality Trend (24h)

Nearby Monitoring Stations

17
Redwood City, San Mateo, California
0.0 km
18
Redwood City, San Mateo, California
0.0 km
14
Berkeley-Palo Alto
5.9 km PM2.5: 3.3 µg/m³
15
Emerald Hills
6.5 km PM2.5: 3.7 µg/m³
18
Acterra!
10.5 km PM2.5: 4.2 µg/m³
22
N Foothhill Blvd
21.4 km PM2.5: 5.2 µg/m³
19
Environment Education Center
22.6 km PM2.5: 4.6 µg/m³
25
JFK Middle School
23.4 km PM2.5: 6.1 µg/m³

Nearby Cities

14 Redwood City 21 Menlo Park 12 San Carlos 21 East Palo Alto 21 Palo Alto 12 Belmont 15 Foster City 22 Los Altos 13 San Mateo

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T22:55 UTC.