Kapolei, HI
Full City Profile · Hawaii · Honolulu County County
3.8
/5.0
B+
Good
23,033
Population
5,271/sq mi density
$129,260
Median Income
$46,261 per capita
$720,600
Home Value
$841,057 Zillow
$2,507
Median Rent
33.7% income on rent
77°F
Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$129,260 median income, 6.4% unemployment
B+
Affordability
3.5 / 5.0
$720,600 home value, $2,507/mo rent
B+
Education
3.5 / 5.0
31.8% bachelor's degree or higher
Kapolei has a warm climate with an average annual temperature of 77°F (25°C). Winters average 73°F in January while summers reach 80°F in July. Annual precipitation totals 13.9 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 31.
Temperature
73°F Jan (23°C)
80°F Jul (27°C)
| Annual Average | 77.0°F |
| 43% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 80°F (27°C) |
Geography
| Elevation | 83 ft (25 m) |
| Area | 4.4 sq mi (11.3 km²) |
| Population Density | 5,271/sq mi |
| Coordinates | 21.3399°N, 158.0678°W |
| Timezone | Pacific/Honolulu |
| County | Honolulu County County |
| Nearest Airport | Daniel K Inouye International (HNL) 10 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 31.0 |
| Rating | Good |
| Good Days % | 98.4% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0275 ppm |
| NO₂ (Nitrogen Dioxide) | 6.1 ppb |
| SO₂ (Sulfur Dioxide) | 1.31 ppb |
| CO (Carbon Monoxide) | 0.11 ppm |
| PM2.5 (Fine Particles) | 4.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.8 / 100 |
| Social Vulnerability | 25.9 / 100 |
| Community Resilience | 62.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Very High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | No Rating |
| Winter Weather | No Rating |
| Lightning | Very High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Relatively High |
| Volcano | No Rating |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 1.4 in | Coldest |
| February | 73°F (23°C) | 1.8 in | |
| March | 74°F (23°C) | 2.0 in | |
| April | 76°F (24°C) | 0.6 in | |
| May | 77°F (25°C) | 1.0 in | |
| June | 79°F (26°C) | 0.3 in | Driest |
| July | 80°F (27°C) | 0.3 in | |
| August | 81°F (27°C) | 0.6 in | Warmest |
| September | 81°F (27°C) | 0.7 in | |
| October | 80°F (26°C) | 1.3 in | |
| November | 77°F (25°C) | 1.8 in | |
| December | 75°F (24°C) | 2.3 in | Wettest |
Kapolei has a seasonal temperature swing of 8°F / from 73°F in January to 81°F in August. Total annual precipitation is 13.9 inches, with December being the wettest month (2.3") and June the driest (0.3").