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Whitemarsh Island, GA
Full City Profile · Georgia · Bryan County County
4.0
/5.0
A
Great
6,918
Population
1,189/sq mi density
$113,250
Median Income
$66,876 per capita
$360,400
Home Value
$577,755 Zillow
$1,724
Median Rent
26.2% income on rent
68°F
Avg Temperature
308 sunny days/yr
116
Violent Crime/100K
3,279 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$113,250 median income, 1.9% unemployment
A+
Affordability
4.9 / 5.0
$360,400 home value, $1,724/mo rent
F
Safety
1.0 / 5.0
116 violent crimes/100K
A+
Education
5.0 / 5.0
50.3% bachelor's degree or higher
Whitemarsh 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. The area gets 308 sunny days per year. 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) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | -1 ft (0 m) |
| Area | 6.6 sq mi (17.2 km²) |
| Population Density | 1,189/sq mi |
| Coordinates | 32.0303°N, 81.0129°W |
| Timezone | America/New_York |
| County | Bryan County County |
| Nearest Airport | Savannah/Hilton Head International (SAV) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 66.6 / 100 |
| Social Vulnerability | 13.4 / 100 |
| Community Resilience | 75.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
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) | 3.9 in | Coldest |
| February | 53°F (12°C) | 3.1 in | |
| March | 60°F (15°C) | 3.9 in | |
| April | 66°F (19°C) | 3.1 in | |
| May | 73°F (23°C) | 3.6 in | |
| June | 79°F (26°C) | 5.4 in | |
| July | 83°F (28°C) | 5.9 in | Warmest |
| August | 81°F (27°C) | 7.2 in | Wettest |
| September | 77°F (25°C) | 5.3 in | |
| October | 68°F (20°C) | 3.1 in | |
| November | 60°F (16°C) | 2.4 in | Driest |
| December | 53°F (12°C) | 3.0 in |
Whitemarsh Island has a seasonal temperature swing of 32°F / from 51°F in January to 83°F in July. Total annual precipitation is 49.8 inches, with August being the wettest month (7.2") and November the driest (2.4").