Stay updated with real-time air quality in Windsor, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
44
Good
Windsor, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.73 μg/m³
0
55
155
255
425
605+
35.53 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
2.07 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Windsor, California
Windsor, California
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AQI 38
Good
6.55μg/m³
PM2.5
18.27μg/m³
PM10
36.84ppb
O3
0.56ppb
SO2
1.73ppb
NO2
0.25ppm
CO
AQI 44
Good
7.62μg/m³
PM2.5
23.92μg/m³
PM10
36.04ppb
O3
0.57ppb
SO2
1.47ppb
NO2
0.24ppm
CO
AQI 44
Good
7.90μg/m³
PM2.5
29.16μg/m³
PM10
36.48ppb
O3
0.57ppb
SO2
1.49ppb
NO2
0.25ppm
CO
AQI 44
Good
7.56μg/m³
PM2.5
31.19μg/m³
PM10
39.23ppb
O3
0.59ppb
SO2
1.57ppb
NO2
0.27ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
31.01μg/m³
PM10
39.31ppb
O3
0.58ppb
SO2
1.66ppb
NO2
0.27ppm
CO
AQI 33
Good
5.59μg/m³
PM2.5
23.20μg/m³
PM10
34.96ppb
O3
0.54ppb
SO2
1.63ppb
NO2
0.27ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Windsor, California is updated on an hourly basis.
The worst air quality in Windsor, California was recorded at 04:00:00 on 2026-04-25.
The best air quality in Windsor, California was recorded at 03:00:00 on 2026-04-25.
The real-time air quality index in Windsor, California is 44, currently categorized as Good.
The most common pollutant in Windsor, California is PM2.5.
If the air quality in Windsor, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Windsor, California at present are 8.216 μg/m3.
The current PM10 levels in Windsor, California are 30.729 μg/m3.
The current carbon monoxide (CO) level in Windsor, California is 0.244 ppm.
The current sulfur dioxide (SO2) levels in Windsor, California are 0.561 ppb.
The current ozone (O3) levels at Windsor, California is 35.529 ppm.
The current nitrogen dioxide (NO2) levels at Windsor, California is 2.072 ppb.
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