Big Beach (Oneloa Beach) Weather Forecast

    • 74
    • 83

    Partly Sunny

    • 74
    • 84

    Mostly Sunny

    • 74
    • 83

    Mostly Sunny

    • 75
    • 85

    Mostly Sunny

    • 74
    • 85

    Partly Sunny

    • 74
    • 84

    Partly Sunny

Today 15 Sep South Maui/Upcountry

Mostly sunny. Highs around 87 near the shore to around 73 near 4000 feet. West Winds up to 15 Mph.

Tonight 15 Sep South Maui/Upcountry

Partly cloudy. Lows around 71 near the shore to around 55 near 4000 feet. West Winds up to 15 Mph shifting to the northeast after midnight.

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Big Beach (Oneloa Beach) Temperature Statistics

September Temperature

Kahului, Kahului Airport (18 miles)

  • Lowest 8 September, 2025

    64.9 °F

  • Average September

    79.5 °F

  • Highest 1 September, 2025

    93 °F

Climate (2020–Present)

Kahului, Kahului Airport (18 miles)

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  • Average Low 2020–2025

    68.8 °F

  • Average 2020–2025

    76.8 °F

  • Average High 2020–2025

    85.6 °F
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