Niihau Weather Forecast

    • 74
    • 85

    Rain Showers

    • 75
    • 85

    Rain Showers

    • 75
    • 86

    Rain Showers

    • 76
    • 87

    Rain Showers

    • 75
    • 87

    Rain Showers

    • 75
    • 86

    Rain Showers

Today 19 Aug Niihau

Mostly sunny with isolated Showers. Highs 79 to 85. East Winds 10 to 15 Mph decreasing to up to 10 Mph in the afternoon. Chance of rain 20 percent.

Tonight 19 Aug Niihau

Mostly clear. Lows 71 to 77. Light Winds becoming east up to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Niihau Temperature Statistics

August Temperature

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

  • Lowest 13 August, 2026

    73 °F

  • Average August

    80.3 °F

  • Highest 15 August, 2026

    89.1 °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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