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)
31
Good
San Rafael, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.53 μg/m³
0
55
155
255
425
605+
33.94 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
1.84 ppb
0
54
101
361
1250
2050+
0.31 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 22
Good
2.82μg/m³
PM2.5
11.40μg/m³
PM10
24.34ppb
O3
0.22ppb
SO2
2.54ppb
NO2
0.11ppm
CO
AQI 22
Good
2.89μg/m³
PM2.5
11.71μg/m³
PM10
24.40ppb
O3
0.22ppb
SO2
2.54ppb
NO2
0.11ppm
CO
AQI 23
Good
3.38μg/m³
PM2.5
13.81μg/m³
PM10
24.84ppb
O3
0.22ppb
SO2
2.52ppb
NO2
0.11ppm
CO
AQI 23
Good
3.56μg/m³
PM2.5
14.62μg/m³
PM10
25.00ppb
O3
0.22ppb
SO2
2.52ppb
NO2
0.11ppm
CO
AQI 28
Good
3.28μg/m³
PM2.5
10.73μg/m³
PM10
29.52ppb
O3
0.22ppb
SO2
2.42ppb
NO2
0.10ppm
CO
AQI 28
Good
4.91μg/m³
PM2.5
22.07μg/m³
PM10
29.79ppb
O3
0.22ppb
SO2
2.51ppb
NO2
0.11ppm
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 2025-06-07.
In the last 24 hours, the best air quality in San Rafael, California was observed at 03:00:00 on 2025-06-06.
As of now, the AQI in San Rafael, California is 31, 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 5.123 μg/m3.
The PM10 concentration in San Rafael, California is 17.528 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Rafael, California is 0.313 ppm.
Currently, San Rafael, California has a sulfur dioxide (SO2) concentration of 0.187 ppb.
The current ozone (O3) level in San Rafael, California at the moment is 33.941 ppm.
Nitrogen dioxide (NO2) level in San Rafael, California at the moment is 1.839 ppb.
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