Toggle navigation
Places
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
California
San Mateo County
Redwood City
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Redwood City
San Mateo County, California
2025-12-29 18:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
O3
μg/m³
47.1
PM2.5
μg/m³
4
NO2
μg/m³
8
CO
μg/m³
375
Pollen
5.5
Weather
℃
℃
℉
14℃
57%
17 kph
2 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Pollen
O3
PM2.5
NO2
CO
Places included
Redwood City
AQI 20
Data Sources
http://www.airnow.gov/
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Redwood City
AQI 20
San Carlos
AQI 7
Emerald Hills
AQI 7
North Fair Oaks
AQI 7
Atherton
AQI 7
Belmont
AQI 7
Menlo Park
AQI 7
Woodside
AQI 7
West Menlo Park
AQI 7
East Palo Alto
AQI 7
Foster City
AQI 7
Air Matters © 2025