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Diamond Beach, NJ
Full City Profile · New Jersey · Cape May County County
3.6
/5.0
B+
Good
288
Population
1,252/sq mi density
$114,914
Median Income
$59,052 per capita
$603,800
Home Value
$616,760 Zillow
56°F
Avg Temperature
293 sunny days/yr
187
Violent Crime/100K
4,137 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$114,914 median income, 3.2% unemployment
B+
Affordability
3.7 / 5.0
$603,800 home value, /mo rent
F
Safety
1.0 / 5.0
187 violent crimes/100K
A+
Education
5.0 / 5.0
53.9% bachelor's degree or higher
Diamond Beach enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 36°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 43.8 inches. The area receives 14.8 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
36°F Jan (2°C)
77°F Jul (25°C)
| Annual Average | 56.3°F |
| 4% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 8 ft (2 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 1,252/sq mi |
| Coordinates | 38.9593°N, 74.8529°W |
| Timezone | America/New_York |
| County | Cape May County County |
| Nearest Airport | Atlantic City International (ACY) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.0 / 100 |
| Social Vulnerability | 37.2 / 100 |
| Community Resilience | 98.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| 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 |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 98 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 3.5 in | Coldest |
| February | 36°F (2°C) | 3.2 in | |
| March | 43°F (6°C) | 3.9 in | |
| April | 52°F (11°C) | 3.5 in | |
| May | 62°F (16°C) | 3.5 in | |
| June | 71°F (21°C) | 3.2 in | |
| July | 77°F (25°C) | 3.4 in | Warmest |
| August | 75°F (24°C) | 4.1 in | Wettest |
| September | 69°F (20°C) | 3.2 in | |
| October | 58°F (14°C) | 3.1 in | Driest |
| November | 49°F (9°C) | 3.2 in | |
| December | 40°F (4°C) | 3.5 in |
Diamond Beach has a seasonal temperature swing of 41°F / from 36°F in January to 77°F in July. Total annual precipitation is 41.1 inches, with August being the wettest month (4.1") and October the driest (3.1").