Niihau Weather Forecast

    • 75
    • 86

    Rain Showers

    • 75
    • 86

    Rain Showers

    • 74
    • 85

    Rain Showers

    • 74
    • 85

    Rain Showers

    • 75
    • 85

    Rain Showers

    • 75
    • 85

    Rain Showers

Today 9 Sep Niihau

Mostly sunny. Scattered Showers in the Morning, then isolated Showers in the afternoon. Highs 80 to 86. South Winds up to 10 Mph. Chance of rain 30 percent.

Tonight 9 Sep Niihau

Partly cloudy with isolated Showers. Lows 72 to 78. Light Winds. Chance of rain 20 percent.

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Niihau Temperature Statistics

September Temperature

Kekaha, Pacific Missile Test Facility Barking Sands (25.5 miles)

  • Lowest 1 September, 2026

    73 °F

  • Average September

    79.8 °F

  • Highest 3 September, 2026

    88 °F

Climate (2021–2026)

Kekaha, Pacific Missile Test Facility Barking Sands (25.5 miles)

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  • Average Low 2021–2026

    70 °F

  • Average 2021–2026

    76.7 °F

  • Average High 2021–2026

    83 °F
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