Wilmington Island, GA
Full City Profile · Georgia · Chatham County County
4.7
/5.0
A+
Excellent
14,457
Population
1,742/sq mi density
$92,578
Median Income
$48,211 per capita
$361,600
Home Value
$577,755 Zillow
$1,680
Median Rent
26.2% income on rent
68°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A+
Economy
4.6 / 5.0
$92,578 median income, 3.6% unemployment
A
Affordability
4.5 / 5.0
$361,600 home value, $1,680/mo rent
A+
Education
5.0 / 5.0
51.0% bachelor's degree or higher
Wilmington Island enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 51°F in January while summers reach 83°F in July. Annual precipitation totals 48.1 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
51°F Jan (10°C)
83°F Jul (28°C)
| Annual Average | 67.5°F |
| 25% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 11 ft (3 m) |
| Area | 9.5 sq mi (24.7 km²) |
| Population Density | 1,742/sq mi |
| Coordinates | 31.9997°N, 80.9752°W |
| Timezone | America/New_York |
| County | Chatham County County |
| Nearest Airport | Savannah/Hilton Head International (SAV) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 63.6% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0417 ppm |
| SO₂ (Sulfur Dioxide) | 2.43 ppb |
| PM2.5 (Fine Particles) | 9.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.4 / 100 |
| Social Vulnerability | 42.1 / 100 |
| Community Resilience | 93.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1886 | CHARLESTON, SC | Earthquake | - | - | 136 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 3.3 in | Coldest |
| February | 54°F (12°C) | 2.8 in | |
| March | 60°F (16°C) | 3.5 in | |
| April | 67°F (19°C) | 3.4 in | |
| May | 74°F (23°C) | 3.6 in | |
| June | 80°F (27°C) | 6.7 in | Wettest |
| July | 83°F (28°C) | 5.8 in | Warmest |
| August | 82°F (28°C) | 5.5 in | |
| September | 78°F (25°C) | 4.4 in | |
| October | 69°F (20°C) | 3.7 in | |
| November | 59°F (15°C) | 2.4 in | Driest |
| December | 53°F (12°C) | 3.2 in |
Wilmington Island has a seasonal temperature swing of 32°F / from 51°F in January to 83°F in July. Total annual precipitation is 48.1 inches, with June being the wettest month (6.7") and November the driest (2.4").