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  5. Redwood City

Redwood City

San Mateo County, California

2026-02-20 18:00
AQI (Netherlands)
Moderate
Pollutants|Pollens
O3
μg/m³
42.9
NO2
μg/m³
19.1
PM2.5
μg/m³
5
Weather
  • ℃
  • ℉
11℃
67%
9 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (Netherlands)
  • Pollen
  • O3
  • NO2
  • PM2.5
Places included
Redwood City
AQI 4
Data Sources
http://www.airnow.gov/

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