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)
49
Good
San Rafael, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.11 μg/m³
0
55
155
255
425
605+
14.01 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
6.71 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
San Rafael, California
San Rafael, California
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AQI 49
Good
8.94μg/m³
PM2.5
39.64μg/m³
PM10
14.03ppb
O3
1.02ppb
SO2
5.81ppb
NO2
0.21ppm
CO
AQI 49
Good
8.97μg/m³
PM2.5
39.79μg/m³
PM10
14.04ppb
O3
1.02ppb
SO2
5.88ppb
NO2
0.21ppm
CO
AQI 49
Good
9.16μg/m³
PM2.5
40.66μg/m³
PM10
14.11ppb
O3
1.01ppb
SO2
6.36ppb
NO2
0.23ppm
CO
AQI 49
Good
9.23μg/m³
PM2.5
40.98μg/m³
PM10
14.14ppb
O3
1.00ppb
SO2
6.53ppb
NO2
0.24ppm
CO
AQI 56
Moderate
12.18μg/m³
PM2.5
43.60μg/m³
PM10
13.76ppb
O3
1.07ppb
SO2
4.29ppb
NO2
0.28ppm
CO
AQI 54
Moderate
10.62μg/m³
PM2.5
47.47μg/m³
PM10
13.97ppb
O3
1.13ppb
SO2
7.21ppb
NO2
0.30ppm
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 10:00:00 on 2026-01-22.
In the last 24 hours, the best air quality in San Rafael, California was observed at 04:00:00 on 2026-01-23.
As of now, the AQI in San Rafael, California is 49, indicating Good conditions.
San Rafael, California air has the highest levels of PM2.5.
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 8.923 μg/m3.
The PM10 concentration in San Rafael, California is 39.113 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Rafael, California is 0.201 ppm.
Currently, San Rafael, California has a sulfur dioxide (SO2) concentration of 0.859 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 14.014 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 6.711 ppb.
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