Wainiha, HI
Full City Profile · Hawaii · Kauai County County
3.9
/5.0
B+
Good
319
Population
129/sq mi density
$103,906
Median Income
$32,042 per capita
$918,000
Home Value
$3,391,175 Zillow
74°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$103,906 median income, 3.0% unemployment
D
Affordability
1.7 / 5.0
$918,000 home value, /mo rent
A+
Education
5.0 / 5.0
54.5% bachelor's degree or higher
Wainiha has a warm climate with an average annual temperature of 74°F (23°C). Winters average 70°F in January while summers reach 77°F in July. Annual precipitation totals 75.2 inches. The area receives 0.0 inches of snow annually.
Temperature
70°F Jan (21°C)
77°F Jul (25°C)
| Annual Average | 73.7°F |
| 36% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 623 ft (190 m) |
| Area | 2.4 sq mi (6.2 km²) |
| Population Density | 129/sq mi |
| Coordinates | 22.1921°N, 159.5467°W |
| Timezone | Pacific/Honolulu |
| County | Kauai County County |
| Nearest Airport | Daniel K Inouye International (HNL) 121 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 84.5 / 100 |
| Social Vulnerability | 22.6 / 100 |
| Community Resilience | 85.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | No Rating |
| Strong Wind | Very Low |
| Heat Wave | No Rating |
| Lightning | Relatively High |
| Drought | Very Low |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Coastal Flood | Relatively Low |
| Tsunami | Relatively Moderate |
| Volcano | No Rating |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 5.4 in | |
| February | 70°F (21°C) | 6.6 in | Coldest |
| March | 70°F (21°C) | 8.3 in | Wettest |
| April | 72°F (22°C) | 5.6 in | |
| May | 75°F (24°C) | 5.1 in | |
| June | 76°F (24°C) | 5.0 in | Driest |
| July | 77°F (25°C) | 5.4 in | |
| August | 78°F (25°C) | 6.3 in | Warmest |
| September | 77°F (25°C) | 5.5 in | |
| October | 76°F (24°C) | 6.4 in | |
| November | 74°F (23°C) | 7.4 in | |
| December | 71°F (22°C) | 8.0 in |
Wainiha has a seasonal temperature swing of 8°F / from 70°F in February to 78°F in August. Total annual precipitation is 75.2 inches, with March being the wettest month (8.3") and June the driest (5.0").