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)
44
Good
Hilton Head Island, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.66 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.79 μg/m³
0
55
155
255
425
605+
17.46 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
4.70 ppb
0
54
101
361
1250
2050+
0.31 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
9.25μg/m³
PM2.5
25.14μg/m³
PM10
11.29ppb
O3
0.49ppb
SO2
5.68ppb
NO2
0.32ppm
CO
AQI 49
Good
9.49μg/m³
PM2.5
30.11μg/m³
PM10
12.40ppb
O3
0.55ppb
SO2
5.51ppb
NO2
0.32ppm
CO
AQI 52
Moderate
9.62μg/m³
PM2.5
32.81μg/m³
PM10
12.01ppb
O3
0.43ppb
SO2
5.68ppb
NO2
0.32ppm
CO
AQI 38
Good
6.84μg/m³
PM2.5
17.86μg/m³
PM10
12.87ppb
O3
0.52ppb
SO2
6.92ppb
NO2
0.32ppm
CO
AQI 52
Moderate
9.98μg/m³
PM2.5
26.61μg/m³
PM10
11.82ppb
O3
0.47ppb
SO2
6.09ppb
NO2
0.33ppm
CO
AQI 54
Moderate
11.08μg/m³
PM2.5
16.00μg/m³
PM10
10.69ppb
O3
0.60ppb
SO2
6.21ppb
NO2
0.32ppm
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 05:00:00 on 2025-12-06.
The best air quality in Hilton Head Island, South Carolina was recorded at 11:00:00 on 2025-12-07.
The real-time air quality index in Hilton Head Island, South Carolina is 44, 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 7.664 μg/m3.
The current PM10 levels in Hilton Head Island, South Carolina are 28.785 μg/m3.
The current carbon monoxide (CO) level in Hilton Head Island, South Carolina is 0.314 ppm.
The current sulfur dioxide (SO2) levels in Hilton Head Island, South Carolina are 0.541 ppb.
The current ozone (O3) levels at Hilton Head Island, South Carolina is 17.461 ppm.
The current nitrogen dioxide (NO2) levels at Hilton Head Island, South Carolina is 4.698 ppb.
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