Stay updated with real-time air quality in Seaside, 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)
38
Good
Seaside, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.70 μg/m³
0
55
155
255
425
605+
27.70 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
4.42 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Seaside, California
Seaside, California
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AQI 44
Good
7.32μg/m³
PM2.5
47.23μg/m³
PM10
27.69ppb
O3
0.51ppb
SO2
4.42ppb
NO2
0.23ppm
CO
AQI 33
Good
5.89μg/m³
PM2.5
32.47μg/m³
PM10
27.69ppb
O3
0.51ppb
SO2
4.43ppb
NO2
0.23ppm
CO
AQI 44
Good
7.32μg/m³
PM2.5
47.23μg/m³
PM10
27.69ppb
O3
0.51ppb
SO2
4.42ppb
NO2
0.23ppm
CO
AQI 33
Good
6.39μg/m³
PM2.5
28.36μg/m³
PM10
28.13ppb
O3
0.52ppb
SO2
4.37ppb
NO2
0.20ppm
CO
AQI 38
Good
6.50μg/m³
PM2.5
28.69μg/m³
PM10
28.80ppb
O3
0.52ppb
SO2
4.31ppb
NO2
0.21ppm
CO
AQI 38
Good
7.45μg/m³
PM2.5
19.14μg/m³
PM10
27.88ppb
O3
0.51ppb
SO2
4.47ppb
NO2
0.23ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Seaside, California is updated every hour.
The worst air quality in Seaside, California in the last 24 hours was observed at 04:00:00 on 2026-06-23.
In the last 24 hrs, the best air quality in Seaside, California was observed at 12:00:00 on 2026-06-23.
The current air quality in Seaside, California is 38, categorized as Good based on real-time data.
The most common pollutant in Seaside, California is PM2.5.
If the air quality in Seaside, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Seaside, California is 7.059 μg/m3.
The current PM10 concentration at Seaside, California is 32.699 μg/m3.
The current carbon monoxide (CO) concentration at Seaside, California is 0.227 ppm.
The current sulfur dioxide (SO2) concentration at Seaside, California is 0.512 ppb.
The current ozone (O3) concentration at Seaside, California is 27.699 ppm.
The current nitrogen dioxide (NO2) concentration at Seaside, California is 4.421 ppb.
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