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)
22
Good
San Rafael, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.08 μg/m³
0
55
155
255
425
605+
24.05 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
1.52 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
San Rafael, California
San Rafael, California
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AQI 23
Good
1.07μg/m³
PM2.5
4.24μg/m³
PM10
25.29ppb
O3
0.32ppb
SO2
2.31ppb
NO2
0.22ppm
CO
AQI 23
Good
1.13μg/m³
PM2.5
4.51μg/m³
PM10
25.35ppb
O3
0.31ppb
SO2
2.35ppb
NO2
0.23ppm
CO
AQI 24
Good
1.54μg/m³
PM2.5
6.37μg/m³
PM10
25.74ppb
O3
0.29ppb
SO2
2.62ppb
NO2
0.26ppm
CO
AQI 24
Good
1.69μg/m³
PM2.5
7.05μg/m³
PM10
25.87ppb
O3
0.29ppb
SO2
2.71ppb
NO2
0.27ppm
CO
AQI 31
Good
2.09μg/m³
PM2.5
24.17μg/m³
PM10
34.42ppb
O3
0.41ppb
SO2
4.51ppb
NO2
0.29ppm
CO
AQI 28
Good
4.20μg/m³
PM2.5
18.94μg/m³
PM10
29.84ppb
O3
0.11ppb
SO2
5.45ppb
NO2
0.32ppm
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 08:00:00 on 2026-06-12.
In the last 24 hours, the best air quality in San Rafael, California was observed at 06:00:00 on 2026-06-12.
As of now, the AQI in San Rafael, California is 22, 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 1.419 μg/m3.
The PM10 concentration in San Rafael, California is 6.085 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Rafael, California is 0.202 ppm.
Currently, San Rafael, California has a sulfur dioxide (SO2) concentration of 0.413 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 24.051 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 1.518 ppb.
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