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)
52
Moderate
Hilton Head Island, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.48 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.46 μg/m³
0
55
155
255
425
605+
41.85 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
4.64 ppb
0
54
101
361
1250
2050+
0.29 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 49
Good
8.80μg/m³
PM2.5
30.06μg/m³
PM10
31.82ppb
O3
0.93ppb
SO2
4.69ppb
NO2
0.26ppm
CO
AQI 49
Good
9.22μg/m³
PM2.5
30.36μg/m³
PM10
29.97ppb
O3
0.89ppb
SO2
4.56ppb
NO2
0.24ppm
CO
AQI 49
Good
8.95μg/m³
PM2.5
28.44μg/m³
PM10
24.34ppb
O3
0.88ppb
SO2
4.53ppb
NO2
0.24ppm
CO
AQI 49
Good
8.63μg/m³
PM2.5
23.72μg/m³
PM10
25.05ppb
O3
0.86ppb
SO2
4.02ppb
NO2
0.30ppm
CO
AQI 49
Good
8.81μg/m³
PM2.5
23.30μg/m³
PM10
26.34ppb
O3
0.97ppb
SO2
3.95ppb
NO2
0.25ppm
CO
AQI 49
Good
8.61μg/m³
PM2.5
23.57μg/m³
PM10
25.05ppb
O3
0.96ppb
SO2
4.03ppb
NO2
0.30ppm
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 04:00:00 on 2026-08-14.
The best air quality in Hilton Head Island, South Carolina was recorded at 06:00:00 on 2026-08-14.
The real-time air quality index in Hilton Head Island, South Carolina is 52, currently categorized as Moderate.
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 10.482 μg/m3.
The current PM10 levels in Hilton Head Island, South Carolina are 39.46 μg/m3.
The current carbon monoxide (CO) level in Hilton Head Island, South Carolina is 0.291 ppm.
The current sulfur dioxide (SO2) levels in Hilton Head Island, South Carolina are 0.919 ppb.
The current ozone (O3) levels at Hilton Head Island, South Carolina is 41.851 ppm.
The current nitrogen dioxide (NO2) levels at Hilton Head Island, South Carolina is 4.645 ppb.
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