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Redwood City

San Mateo County, California

2025-12-15 03:00
AQI (China)
Excellent
Pollutants|Pollens
PM2.5
μg/m³
30
NO2
μg/m³
29
CO
μg/m³
1375
O3
μg/m³
0
Weather
  • ℃
  • ℉
8℃
95%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM2.5
  • NO2
  • CO
  • O3
Places included
Redwood City
AQI 43
Data Sources
http://www.airnow.gov/

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