Poipu, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Poipu, a community in Kauai County, Hawaii.
Overnight
73°F
Scattered Rain Showers
Scattered rain showers. Partly cloudy, with a low around 73. Northeast wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
7-day forecast for Poipu
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Scattered Rain Showers | 17 mph NE | 28% |
| Wednesday | 85°F | Isolated Rain Showers then Mostly Sunny | 15 to 18 mph ENE | 24% |
| Wednesday Night | 74°F | Partly Cloudy then Isolated Rain Showers | 15 mph ENE | 20% |
| Thursday | 86°F | Scattered Rain Showers | 16 mph NE | 36% |
| Thursday Night | 73°F | Scattered Rain Showers | 17 mph NE | 28% |
| Friday | 86°F | Isolated Rain Showers then Mostly Sunny | 16 to 20 mph NE | 19% |
| Friday Night | 73°F | Mostly Cloudy | 18 mph NE | 12% |
| Saturday | 85°F | Mostly Sunny then Isolated Rain Showers | 20 mph NE | 21% |
| Saturday Night | 73°F | Isolated Rain Showers | 18 mph ENE | 24% |
| Sunday | 85°F | Scattered Rain Showers | 20 mph ENE | 28% |
| Sunday Night | 73°F | Isolated Rain Showers | 20 mph ENE | 24% |
| Monday | 85°F | Scattered Rain Showers | 18 mph ENE | 28% |
| Monday Night | 73°F | Scattered Rain Showers | 17 mph NE | 25% |
| Tuesday | 85°F | Isolated Rain Showers then Mostly Sunny | 16 to 20 mph NE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Poipu (21.886, -159.457). Updated through the day.
Growing snapshot for Poipu
Growing season
365 days
More local growing data for Poipu: 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 Poipu). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.