Poipu Beach Weather Forecast

    • 66
    • 79

    Rain Showers

    • 65
    • 80

    Rain Showers

    • 66
    • 80

    Rain Showers

    • 68
    • 80

    Rain Showers

    • 67
    • 81

    Rain Showers

    • 68
    • 82

    Mostly Sunny

Today 21 Jan Kauai South

Cloudy with scattered Showers. Highs 73 to 79. Northeast Winds up to 15 Mph. Chance of rain 20 percent.

Tonight 21 Jan Kauai South

Mostly cloudy with isolated Showers. Lows around 64. Northeast Winds 10 to 15 Mph. Chance of rain 20 percent.

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Poipu Beach Temperature Statistics

January Temperature

Lihue, Lihue Airport (10.6 miles)

  • Lowest 13 January, 2026

    59 °F

  • Average January

    72.7 °F

  • Highest 10 January, 2026

    82 °F

Climate (2021–Present)

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

    82 °F
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