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)
12
Good
San Rafael, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.13 μg/m³
0
55
155
255
425
605+
13.12 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
4.09 ppb
0
54
101
361
1250
2050+
0.30 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 14
Good
2.12μg/m³
PM2.5
8.99μg/m³
PM10
14.88ppb
O3
0.61ppb
SO2
1.54ppb
NO2
0.30ppm
CO
AQI 14
Good
2.21μg/m³
PM2.5
9.39μg/m³
PM10
15.08ppb
O3
0.60ppb
SO2
1.57ppb
NO2
0.30ppm
CO
AQI 16
Good
2.72μg/m³
PM2.5
11.82μg/m³
PM10
16.31ppb
O3
0.61ppb
SO2
1.75ppb
NO2
0.30ppm
CO
AQI 16
Good
2.90μg/m³
PM2.5
12.68μg/m³
PM10
16.76ppb
O3
0.61ppb
SO2
1.81ppb
NO2
0.29ppm
CO
AQI 24
Good
3.19μg/m³
PM2.5
26.03μg/m³
PM10
19.75ppb
O3
0.56ppb
SO2
1.98ppb
NO2
0.29ppm
CO
AQI 33
Good
6.47μg/m³
PM2.5
29.39μg/m³
PM10
21.97ppb
O3
0.94ppb
SO2
2.93ppb
NO2
0.39ppm
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 05:00:00 on 2026-08-11.
In the last 24 hours, the best air quality in San Rafael, California was observed at 02:00:00 on 2026-08-12.
As of now, the AQI in San Rafael, California is 12, 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 1.63 μg/m3.
The PM10 concentration in San Rafael, California is 7.132 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Rafael, California is 0.301 ppm.
Currently, San Rafael, California has a sulfur dioxide (SO2) concentration of 0.753 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 13.118 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 4.091 ppb.
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