Stay updated with real-time air quality in San Rafael, 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)
20
Good
San Rafael, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.05 μg/m³
0
55
155
255
425
605+
22.13 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
13.97 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
San Rafael, California
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AQI 21
Good
3.09μg/m³
PM2.5
12.48μg/m³
PM10
23.04ppb
O3
0.37ppb
SO2
13.10ppb
NO2
0.30ppm
CO
AQI 21
Good
3.12μg/m³
PM2.5
12.62μg/m³
PM10
23.27ppb
O3
0.36ppb
SO2
12.88ppb
NO2
0.30ppm
CO
AQI 23
Good
3.30μg/m³
PM2.5
13.55μg/m³
PM10
24.58ppb
O3
0.36ppb
SO2
11.62ppb
NO2
0.32ppm
CO
AQI 23
Good
3.37μg/m³
PM2.5
13.93μg/m³
PM10
25.06ppb
O3
0.36ppb
SO2
11.17ppb
NO2
0.32ppm
CO
AQI 26
Good
3.37μg/m³
PM2.5
11.17μg/m³
PM10
28.30ppb
O3
0.38ppb
SO2
3.98ppb
NO2
0.29ppm
CO
AQI 31
Good
3.00μg/m³
PM2.5
12.48μg/m³
PM10
34.39ppb
O3
0.33ppb
SO2
2.56ppb
NO2
0.22ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for San Rafael, California is updated every hour for accuracy.
In the past 24 hours, the air quality in San Rafael, California was at its worst at 12:00:00 on 2026-03-07.
In the last 24 hours, the best air quality in San Rafael, California was observed at 08:00:00 on 2026-03-07.
As of now, the AQI in San Rafael, California is 20, indicating Good conditions.
San Rafael, California air has the highest levels of O3.
Poor air quality in San Rafael, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in San Rafael, California are currently 3.01 μg/m3.
The PM10 concentration in San Rafael, California is 12.052 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Rafael, California is 0.3 ppm.
Currently, San Rafael, California has a sulfur dioxide (SO2) concentration of 0.369 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 22.132 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 13.973 ppb.
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