Niihau Weather Forecast

    • 75
    • 86

    Rain Showers

    • 74
    • 86

    Rain Showers

    • 75
    • 86

    Rain Showers

    • 74
    • 86

    Partly Sunny

    • 74
    • 86

    Partly Sunny

    • 75
    • 86

    Mostly Sunny

Today 16 Sep Niihau

Sunny. Highs 81 to 88. East Winds up to 10 Mph shifting to the northeast in the afternoon.

Tonight 16 Sep Niihau

Partly cloudy. Breezy. Isolated Showers after midnight. Lows 72 to 78. Northeast Winds 10 to 20 Mph. 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 14 September, 2026

    72 °F
  • Average September

    79.4 °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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