Niihau Weather Forecast

    • 75
    • 85

    Rain Showers

    • 75
    • 84

    Rain Showers

    • 75
    • 84

    Rain Showers

    • 74
    • 85

    Partly Sunny

    • 74
    • 84

    Mostly Sunny

    • 74
    • 83

    Partly Sunny

Today 30 Sep Niihau

Breezy. Occasional Showers. Highs 80 to 85. Southeast Winds 15 to 25 Mph. Chance of rain near 100 percent.

Tonight 30 Sep Niihau

Breezy. Cloudy with occasional Showers. Lows 71 to 78. Southeast Winds 15 to 20 Mph. Chance of rain 80 percent.

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Niihau Temperature Statistics

September Temperature

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

  • Lowest 15 September, 2026

    71.1 °F

  • Average September

    80.2 °F

  • Highest 27 September, 2026

    90 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    70.1 °F

  • Average 2021–2026

    76.7 °F

  • Average High 2021–2026

    83 °F
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