Kapa'a Weather Forecast

    • 74
    • 86

    Rain Showers

    • 74
    • 87

    Rain Showers

    • 73
    • 88

    Rain Showers

    • 74
    • 87

    Rain Showers

    • 74
    • 87

    Rain Showers

    • 75
    • 87

    Rain Showers

    • 74
    • 87

    Rain Showers

Today 13 Sep Kauai East

Partly sunny. Scattered Showers in the Morning, then isolated Showers in the afternoon. Highs 76 to 87. East Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 13 Sep Kauai East

Mostly cloudy with isolated Showers. Lows 67 to 78. East Winds 10 to 15 Mph. Chance of rain 20 percent.

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Kapa'a Temperature Statistics

September Temperature

Lihue, Lihue Airport (6.8 miles)

  • Lowest 7 September, 2025

    71.1 °F

  • Average September

    79.3 °F

  • Highest 2 September, 2025

    84.9 °F

Climate (2020–Present)

Lihue, Lihue Airport (6.8 miles)

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  • Average Low 2020–2025

    71.8 °F

  • Average 2020–2025

    76.5 °F

  • Average High 2020–2025

    82.1 °F
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