Redwood City, San Mateo, California Air Quality

Monitoring Station · Redwood City, United States
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
57 8pm
47
54
61 11pm
61
61
61 2am
61
61
61 5am
61
61
61 8am
61
11am
2pm
5pm
Station readings
57
47
CAMS model adj +27
27
27
27
34
34
34
34
34
34
34
34
34
34
34
PM2.511.3 µg/m³ ✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T23:13 UTC.