Koloa, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Koloa, a community in Kauai County, Hawaii.
Overnight
74°F
Scattered Rain Showers
Scattered rain showers. Partly cloudy, with a low around 74. Northeast wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Koloa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Scattered Rain Showers | 10 mph NE | 32% |
| Tuesday | 86°F | Scattered Rain Showers | 12 mph NE | 40% |
| Tuesday Night | 74°F | Scattered Rain Showers | 12 mph ENE | 42% |
| Wednesday | 86°F | Scattered Rain Showers | 12 mph ENE | 49% |
| Wednesday Night | 74°F | Scattered Rain Showers | 12 mph NE | 48% |
| Thursday | 86°F | Scattered Rain Showers | 13 mph ENE | 49% |
| Thursday Night | 74°F | Scattered Rain Showers | 13 mph ENE | 47% |
| Friday | 87°F | Scattered Rain Showers | 14 mph ENE | 37% |
| Friday Night | 75°F | Scattered Rain Showers | 14 mph ENE | 47% |
| Saturday | 87°F | Scattered Rain Showers | 15 mph ENE | 46% |
| Saturday Night | 75°F | Scattered Rain Showers | 14 mph ENE | 36% |
| Sunday | 87°F | Scattered Rain Showers | 15 mph ENE | 43% |
| Sunday Night | 75°F | Scattered Rain Showers | 15 mph ENE | 38% |
| Monday | 87°F | Scattered Rain Showers | 14 mph ENE | 38% |
Forecast source: National Weather Service (api.weather.gov) for Koloa (21.903, -159.461). Updated through the day.
Growing snapshot for Koloa
Growing season
365 days
More local growing data for Koloa: nearby ZIP 96756 weather · frost dates · planting calendar · Hawaii frost dates
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Climate data from the nearest NOAA station, Mahaulepu 941.1, Hi (2.1 mi from Koloa). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.