Poipu Beach Weather Forecast

    • 77
    • 87

    Rain Showers

    • 76
    • 87

    Rain Showers

    • 76
    • 87

    Rain Showers

    • 76
    • 87

    Rain Showers

    • 75
    • 87

    Partly Sunny

    • 75
    • 87

    Partly Sunny

    • 76
    • 87

    Mostly Sunny

Today 20 Aug Kauai South

Mostly sunny. Breezy. Isolated Showers in the morning. Highs 84 to 92. Northeast Winds 10 to 20 Mph. Chance of rain 20 percent.

Tonight 20 Aug Kauai South

Partly cloudy with isolated Showers in the Evening, then mostly cloudy with scattered Showers after midnight. Lows around 75. Northeast Winds 10 to 15 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Poipu Beach Temperature Statistics

August Temperature

Lihue, Lihue Airport (10.6 miles)

  • Lowest 11 August, 2025

    72.6 °F

  • Average August

    81 °F

  • Highest 16 August, 2025

    88.6 °F

Climate (2020–Present)

Lihue, Lihue Airport (10.6 miles)

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  • Average Low 2020–2025

    71.7 °F

  • Average 2020–2025

    76.5 °F

  • Average High 2020–2025

    82.1 °F
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