Stay updated with real-time air quality in Monterey, 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
Monterey, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.05 μg/m³
0
55
155
255
425
605+
20.32 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
3.91 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monterey, California
Monterey, California
Scroll To Air Quality MapLoading...
AQI 27
Good
5.09μg/m³
PM2.5
25.95μg/m³
PM10
20.57ppb
O3
0.75ppb
SO2
3.98ppb
NO2
0.21ppm
CO
AQI 33
Good
5.84μg/m³
PM2.5
27.18μg/m³
PM10
20.59ppb
O3
0.75ppb
SO2
4.00ppb
NO2
0.20ppm
CO
AQI 33
Good
5.81μg/m³
PM2.5
27.50μg/m³
PM10
20.82ppb
O3
0.75ppb
SO2
4.00ppb
NO2
0.20ppm
CO
AQI 38
Good
7.25μg/m³
PM2.5
32.33μg/m³
PM10
21.26ppb
O3
0.77ppb
SO2
3.43ppb
NO2
0.20ppm
CO
AQI 38
Good
6.70μg/m³
PM2.5
29.85μg/m³
PM10
22.48ppb
O3
0.77ppb
SO2
3.49ppb
NO2
0.20ppm
CO
AQI 33
Good
5.79μg/m³
PM2.5
27.43μg/m³
PM10
28.95ppb
O3
0.75ppb
SO2
3.44ppb
NO2
0.20ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Monterey, California are available every hour.
Monterey, California experienced its worst air quality at 11:00:00, 2025-07-29.
The best air quality in Monterey, California was observed at 11:00:00 on 2025-07-29.
The air quality in Monterey, California right now is Good, with an AQI of 33.
In Monterey, California, PM2.5 is the most frequently found pollutant.
When air quality in Monterey, California is compromised, staying indoors and wearing a mask can reduce health risks.
Monterey, California currently has a PM2.5 concentration of 6.111 μg/m3.
Monterey, California currently has a PM10 concentration of 19.536 μg/m3.
The current carbon monoxide (CO) level in Monterey, California is 0.206 ppm.
The current sulfur dioxide (SO2) concentration in Monterey, California is 2.701 ppb.
Monterey, California currently has an ozone (O3) concentration of 21.027 ppm.
The current level of nitrogen dioxide (NO2) in Monterey, California is 3.158 ppb.
All Rights Reserved © Ambee Inc. 2025