Na'Pali Coast State Park Weather Forecast

    • 68
    • 82

    Rain Showers

    • 68
    • 82

    Rain Showers

    • 68
    • 82

    Rain Showers

    • 67
    • 82

    Mostly Sunny

    • 67
    • 81

    Mostly Sunny

    • 68
    • 81

    Mostly Sunny

    • 68
    • 82

    Mostly Sunny

Today 20 Aug Kauai Mountains

Mostly sunny. Scattered Showers in the Morning, then isolated Showers in the afternoon. Highs 77 to 87 in the Valleys to around 69 above 4000 feet. East Winds up to 15 Mph. Chance of rain 40 percent.

Tonight 20 Aug Kauai Mountains

Breezy. Mostly cloudy with scattered Showers. Lows 66 to 71 in the Valleys to around 60 above 4000 feet. East Winds 10 to 20 Mph. Chance of rain 50 percent.

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Na'Pali Coast State Park Temperature Statistics

August Temperature

Kekaha, Pacific Missile Test Facility Barking Sands (13 miles)

  • Lowest 1 August, 2025

    71.1 °F

  • Average August

    80.9 °F

  • Highest 18 August, 2025

    90 °F

Climate (2020–Present)

Kekaha, Pacific Missile Test Facility Barking Sands (13 miles)

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  • Average Low 2020–2025

    69.9 °F

  • Average 2020–2025

    76.7 °F

  • Average High 2020–2025

    83.1 °F
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