Black Sand Beach (Oneuli Beach) Weather Forecast

    • 74
    • 83

    Partly Sunny

    • 74
    • 83

    Mostly Cloudy

    • 74
    • 83

    Partly Sunny

    • 73
    • 83

    Mostly Sunny

    • 73
    • 83

    Mostly Sunny

    • 73
    • 83

    Mostly Sunny

    • 73
    • 83

    Mostly Sunny

Today 20 Jul South Maui/Upcountry

Sunny. Highs around 87 near the shore to around 73 near 4000 feet. Light Winds.

Tonight 20 Jul South Maui/Upcountry

Partly cloudy with isolated Showers. Lows 68 to 73 near the shore to around 57 near 4000 feet. Light Winds. Chance of rain 20 percent.

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  • Temperature Real-Time

Black Sand Beach (Oneuli Beach) Temperature Statistics

July Temperature

Kahului, Kahului Airport (17.4 miles)

  • Lowest 14 July, 2026

    64.9 °F

  • Average July

    78.8 °F

  • Highest 17 July, 2026

    89.1 °F

Climate (2021–2026)

Kahului, Kahului Airport (17.4 miles)

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  • Average Low 2021–2026

    68.9 °F

  • Average 2021–2026

    76.7 °F

  • Average High 2021–2026

    85.3 °F
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