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Awendaw, SC
Full City Profile · South Carolina · Charleston County County
3.0
/5.0
B
Good
1,574
Population
91/sq mi density
$70,781
Median Income
$42,754 per capita
$387,500
Home Value
$792,984 Zillow
$2,792
Median Rent
51.0% income on rent
66°F
Avg Temperature
304 sunny days/yr
69
Violent Crime/100K
3,185 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$70,781 median income, 5.6% unemployment
B+
Affordability
3.6 / 5.0
$387,500 home value, $2,792/mo rent
F
Safety
1.0 / 5.0
69 violent crimes/100K
A
Education
4.1 / 5.0
38.6% bachelor's degree or higher
Awendaw enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 48°F in January while summers reach 82°F in July. The area gets 304 sunny days per year. Annual precipitation totals 51.6 inches. Air quality is rated Good with a median AQI of 43.
Temperature
48°F Jan (9°C)
82°F Jul (28°C)
| Annual Average | 65.5°F |
| 21% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 9.5 sq mi (24.5 km²) |
| Population Density | 91/sq mi |
| Coordinates | 32.9679°N, 79.6548°W |
| Timezone | America/New_York |
| County | Charleston County County |
| Nearest Airport | Charleston Afb/International (CHS) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0396 ppm |
| NO₂ (Nitrogen Dioxide) | 6.6 ppb |
| SO₂ (Sulfur Dioxide) | 0.41 ppb |
| PM2.5 (Fine Particles) | 7.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.6 / 100 |
| Social Vulnerability | 22.4 / 100 |
| Community Resilience | 96.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Relatively High |
| 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 | — | — | 33 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 4.0 in | Coldest |
| February | 50°F (10°C) | 3.5 in | |
| March | 57°F (14°C) | 4.3 in | |
| April | 63°F (17°C) | 2.7 in | Driest |
| May | 71°F (22°C) | 3.7 in | |
| June | 77°F (25°C) | 5.6 in | |
| July | 82°F (28°C) | 5.9 in | Warmest |
| August | 80°F (27°C) | 7.1 in | Wettest |
| September | 76°F (24°C) | 5.4 in | |
| October | 67°F (19°C) | 3.5 in | |
| November | 58°F (15°C) | 2.8 in | |
| December | 51°F (11°C) | 3.2 in |
Awendaw has a seasonal temperature swing of 34°F / from 48°F in January to 82°F in July. Total annual precipitation is 51.6 inches, with August being the wettest month (7.1") and April the driest (2.7").