Stay updated with real-time air quality in Oceanside, 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)
49
Good
Oceanside, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.14 μg/m³
0
55
155
255
425
605+
41.03 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
4.48 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Oceanside, California
Oceanside, California
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AQI 49
Good
8.79μg/m³
PM2.5
25.17μg/m³
PM10
41.03ppb
O3
0.64ppb
SO2
4.44ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.64μg/m³
PM2.5
26.06μg/m³
PM10
41.17ppb
O3
0.65ppb
SO2
5.08ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.90μg/m³
PM2.5
32.44μg/m³
PM10
41.56ppb
O3
0.66ppb
SO2
5.21ppb
NO2
0.20ppm
CO
AQI 49
Good
8.95μg/m³
PM2.5
25.23μg/m³
PM10
40.74ppb
O3
0.69ppb
SO2
5.55ppb
NO2
0.20ppm
CO
AQI 58
Moderate
12.66μg/m³
PM2.5
32.73μg/m³
PM10
44.28ppb
O3
0.69ppb
SO2
5.25ppb
NO2
0.20ppm
CO
AQI 62
Moderate
15.23μg/m³
PM2.5
29.47μg/m³
PM10
41.56ppb
O3
0.63ppb
SO2
4.35ppb
NO2
0.20ppm
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 Oceanside, California is updated every hour.
The worst air quality in Oceanside, California in the last 24 hours was observed at 07:00:00 on 2026-06-08.
In the last 24 hrs, the best air quality in Oceanside, California was observed at 08:00:00 on 2026-06-08.
The current air quality in Oceanside, California is 49, categorized as Good based on real-time data.
The most common pollutant in Oceanside, California is PM2.5.
If the air quality in Oceanside, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Oceanside, California is 8.741 μg/m3.
The current PM10 concentration at Oceanside, California is 25.136 μg/m3.
The current carbon monoxide (CO) concentration at Oceanside, California is 0.2 ppm.
The current sulfur dioxide (SO2) concentration at Oceanside, California is 0.64 ppb.
The current ozone (O3) concentration at Oceanside, California is 41.03 ppm.
The current nitrogen dioxide (NO2) concentration at Oceanside, California is 4.48 ppb.
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