Poipu Beach Park Weather Forecast

    • 75
    • 84

    Partly Sunny

    • 74
    • 84

    Partly Sunny

    • 74
    • 84

    Mostly Sunny

    • 75
    • 84

    Partly Sunny

    • 76
    • 85

    Rain Showers

    • 77
    • 86

    Rain Showers

    • 77
    • 86

    Rain Showers

Today 11 Sep Kauai South

Mostly sunny with isolated Showers. Highs 79 to 89. East Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 11 Sep Kauai South

Partly cloudy with isolated Showers. Lows 69 to 76. Northeast Winds 10 to 15 Mph. Chance of rain 20 percent.

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Poipu Beach Park Temperature Statistics

September Temperature

Lihue, Lihue Airport (10.6 miles)

  • Lowest 6 September, 2026

    75 °F

  • Average September

    79.3 °F

  • Highest 5 September, 2026

    86 °F

Climate (2021–2026)

Lihue, Lihue Airport (10.6 miles)

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  • Average Low 2021–2026

    71.7 °F

  • Average 2021–2026

    76.4 °F

  • Average High 2021–2026

    81.9 °F
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