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
8.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.89 μg/m³
0
55
155
255
425
605+
30.07 ppb
0
55
71
86
201
201+
0.74 ppb
0
36
76
186
605
1005+
3.50 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 38
Good
6.99μg/m³
PM2.5
30.80μg/m³
PM10
32.42ppb
O3
0.69ppb
SO2
3.17ppb
NO2
0.30ppm
CO
AQI 38
Good
6.99μg/m³
PM2.5
30.77μg/m³
PM10
32.50ppb
O3
0.69ppb
SO2
3.14ppb
NO2
0.30ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
30.67μg/m³
PM10
33.05ppb
O3
0.69ppb
SO2
2.91ppb
NO2
0.30ppm
CO
AQI 38
Good
7.03μg/m³
PM2.5
30.65μg/m³
PM10
33.24ppb
O3
0.68ppb
SO2
2.82ppb
NO2
0.30ppm
CO
AQI 44
Good
7.53μg/m³
PM2.5
33.95μg/m³
PM10
38.67ppb
O3
0.58ppb
SO2
2.14ppb
NO2
0.27ppm
CO
AQI 35
Good
6.03μg/m³
PM2.5
23.68μg/m³
PM10
38.09ppb
O3
1.13ppb
SO2
2.31ppb
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 04:00:00 on 2026-04-25.
In the last 24 hours, the best air quality in San Rafael, California was observed at 11:00:00 on 2026-04-25.
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 8.974 μg/m3.
The PM10 concentration in San Rafael, California is 40.858 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 0.937 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 32.063 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 4.081 ppb.
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