1. North America
  2. United States
  3. California
  4. Napa County
  5. St. Helena

St. Helena

Napa County, California

2025-03-20 00:00
CAQI (Europe)
Very Low
Pollutants|Pollens
O3
μg/m³
50.9
PM10
μg/m³
17.6
PM2.5
μg/m³
6.4
NO2
μg/m³
3.7
CO
μg/m³
155.3
Weather
  • ℃
  • ℉
14℃
55%
11 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

St. Helena
AQI 22
Deer Park
AQI 22
Rutherford
AQI 22
Angwin
AQI 22
Oakville
AQI 22
Kenwood
AQI 22
Calistoga
AQI 22
Yountville
AQI 22
Glen Ellen
AQI 22
Eldridge
AQI 22
Fetters Hot Springs-Agua Caliente
AQI 22