Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
51 6pm
56
57
56 9pm
56
63
63 12am
63
63
63 3am
63
63
63 6am
63
63
9am
12pm
3pm
Station readings
51
57
CAMS model adj +29
27
27
27
27
27
34
34
34
34
34
34
34
34
34
34
PM2.515.0 µg/m³ ✓ WHO
Moderate
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T21:52 UTC.