Kapaa, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kapaa, a community in Kauai County, Hawaii.
This Afternoon
82°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a high near 82. Northeast wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Kapaa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Scattered Rain Showers | 15 mph NE | 40% |
| Tonight | 73°F | Occasional Rain Showers | 14 mph NE | 88% |
| Wednesday | 83°F | Scattered Rain Showers | 14 mph NE | 28% |
| Wednesday Night | 73°F | Scattered Rain Showers | 12 mph ENE | 28% |
| Thursday | 84°F | Scattered Rain Showers | 13 mph ENE | 48% |
| Thursday Night | 73°F | Scattered Rain Showers | 14 mph ENE | 32% |
| Friday | 84°F | Isolated Rain Showers then Partly Sunny | 13 to 16 mph NE | 24% |
| Friday Night | 73°F | Isolated Rain Showers | 17 mph NE | 16% |
| Saturday | 84°F | Isolated Rain Showers | 16 mph ENE | 21% |
| Saturday Night | 73°F | Scattered Rain Showers | 16 mph ENE | 26% |
| Sunday | 83°F | Scattered Rain Showers | 17 mph ENE | 31% |
| Sunday Night | 72°F | Scattered Rain Showers | 17 mph ENE | 26% |
| Monday | 84°F | Scattered Rain Showers | 16 mph ENE | 30% |
| Monday Night | 72°F | Scattered Rain Showers | 16 mph ENE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Kapaa (22.088, -159.352). Updated through the day.
Growing snapshot for Kapaa
Growing season
365 days
More local growing data for Kapaa: nearby ZIP 96746 weather · frost dates · planting calendar · Hawaii frost dates
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Climate data from the nearest NOAA station, Lihue Wso Ap 1020.1, Hi (7.6 mi from Kapaa). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.