Stay updated with real-time air quality in Hilton Head Island, South Carolina 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)
33
Good
Hilton Head Island, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.22 μg/m³
0
55
155
255
425
605+
18.20 ppb
0
55
71
86
201
201+
1.94 ppb
0
36
76
186
605
1005+
4.39 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hilton Head Island, South Carolina
Hilton Head Island, South Carolina
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AQI 27
Good
5.03μg/m³
PM2.5
20.34μg/m³
PM10
20.75ppb
O3
2.76ppb
SO2
3.71ppb
NO2
0.23ppm
CO
AQI 27
Good
4.78μg/m³
PM2.5
14.39μg/m³
PM10
19.53ppb
O3
2.18ppb
SO2
3.81ppb
NO2
0.20ppm
CO
AQI 27
Good
4.78μg/m³
PM2.5
14.44μg/m³
PM10
19.64ppb
O3
2.08ppb
SO2
3.52ppb
NO2
0.20ppm
CO
AQI 27
Good
5.23μg/m³
PM2.5
16.46μg/m³
PM10
18.66ppb
O3
3.92ppb
SO2
4.52ppb
NO2
0.29ppm
CO
AQI 27
Good
5.05μg/m³
PM2.5
18.20μg/m³
PM10
20.11ppb
O3
2.89ppb
SO2
3.75ppb
NO2
0.20ppm
CO
AQI 27
Good
5.25μg/m³
PM2.5
16.60μg/m³
PM10
18.39ppb
O3
3.90ppb
SO2
4.54ppb
NO2
0.29ppm
CO
Air quality measurements for South Carolina, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Hilton Head Island, South Carolina is updated on an hourly basis.
The worst air quality in Hilton Head Island, South Carolina was recorded at 10:00:00 on 2026-09-06.
The best air quality in Hilton Head Island, South Carolina was recorded at 10:00:00 on 2026-09-07.
The real-time air quality index in Hilton Head Island, South Carolina is 33, currently categorized as Good.
The most common pollutant in Hilton Head Island, South Carolina is PM2.5.
If the air quality in Hilton Head Island, South Carolina is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hilton Head Island, South Carolina at present are 5.838 μg/m3.
The current PM10 levels in Hilton Head Island, South Carolina are 19.217 μg/m3.
The current carbon monoxide (CO) level in Hilton Head Island, South Carolina is 0.302 ppm.
The current sulfur dioxide (SO2) levels in Hilton Head Island, South Carolina are 1.941 ppb.
The current ozone (O3) levels at Hilton Head Island, South Carolina is 18.202 ppm.
The current nitrogen dioxide (NO2) levels at Hilton Head Island, South Carolina is 4.395 ppb.
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