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)
44
Good
San Rafael, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.94 μg/m³
0
55
155
255
425
605+
33.03 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
2.11 ppb
0
54
101
361
1250
2050+
0.30 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 49
Good
8.81μg/m³
PM2.5
40.08μg/m³
PM10
30.58ppb
O3
0.74ppb
SO2
3.46ppb
NO2
0.30ppm
CO
AQI 49
Good
8.76μg/m³
PM2.5
39.84μg/m³
PM10
30.70ppb
O3
0.74ppb
SO2
3.44ppb
NO2
0.30ppm
CO
AQI 44
Good
8.45μg/m³
PM2.5
38.32μg/m³
PM10
31.51ppb
O3
0.74ppb
SO2
3.34ppb
NO2
0.31ppm
CO
AQI 44
Good
8.34μg/m³
PM2.5
37.74μg/m³
PM10
31.79ppb
O3
0.74ppb
SO2
3.30ppb
NO2
0.31ppm
CO
AQI 36
Good
6.42μg/m³
PM2.5
33.02μg/m³
PM10
38.81ppb
O3
0.63ppb
SO2
2.14ppb
NO2
0.28ppm
CO
AQI 38
Good
7.16μg/m³
PM2.5
32.23μg/m³
PM10
37.67ppb
O3
1.21ppb
SO2
3.38ppb
NO2
0.34ppm
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 06:00:00 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 8.978 μg/m3.
The PM10 concentration in San Rafael, California is 40.893 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 0.738 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 30.069 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 3.496 ppb.
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