Stay updated with real-time air quality in Urban Honolulu, Hawaii 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)
18
Good
Urban Honolulu, Hawaii
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.12 μg/m³
0
55
155
255
425
605+
19.11 ppb
0
55
71
86
201
201+
8.64 ppb
0
36
76
186
605
1005+
4.35 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Urban Honolulu, Hawaii
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AQI 19
Good
2.94μg/m³
PM2.5
8.42μg/m³
PM10
20.01ppb
O3
9.50ppb
SO2
9.62ppb
NO2
0.20ppm
CO
AQI 19
Good
1.97μg/m³
PM2.5
6.25μg/m³
PM10
20.02ppb
O3
9.50ppb
SO2
9.62ppb
NO2
0.20ppm
CO
AQI 19
Good
2.20μg/m³
PM2.5
6.77μg/m³
PM10
20.02ppb
O3
9.50ppb
SO2
9.63ppb
NO2
0.20ppm
CO
AQI 19
Good
2.03μg/m³
PM2.5
6.44μg/m³
PM10
20.03ppb
O3
9.51ppb
SO2
9.63ppb
NO2
0.20ppm
CO
AQI 19
Good
2.13μg/m³
PM2.5
6.94μg/m³
PM10
20.09ppb
O3
9.52ppb
SO2
9.62ppb
NO2
0.20ppm
CO
AQI 19
Good
2.11μg/m³
PM2.5
6.96μg/m³
PM10
20.12ppb
O3
9.50ppb
SO2
11.85ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for Hawaii, 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 Urban Honolulu, Hawaii is updated every hour.
The worst air quality in Urban Honolulu, Hawaii in the last 24 hours was observed at 08:00:00 on 2026-10-04.
In the last 24 hrs, the best air quality in Urban Honolulu, Hawaii was observed at 07:00:00 on 2026-10-05.
The current air quality in Urban Honolulu, Hawaii is 19, categorized as Good based on real-time data.
The most common pollutant in Urban Honolulu, Hawaii is O3.
If the air quality in Urban Honolulu, Hawaii is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Urban Honolulu, Hawaii is 2.945 μg/m3.
The current PM10 concentration at Urban Honolulu, Hawaii is 8.422 μg/m3.
The current carbon monoxide (CO) concentration at Urban Honolulu, Hawaii is 0.2 ppm.
The current sulfur dioxide (SO2) concentration at Urban Honolulu, Hawaii is 9.504 ppb.
The current ozone (O3) concentration at Urban Honolulu, Hawaii is 20.011 ppm.
The current nitrogen dioxide (NO2) concentration at Urban Honolulu, Hawaii is 9.621 ppb.
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