Big Beach (Oneloa Beach) Weather Forecast

    • 76
    • 87

    Mostly Sunny

    • 77
    • 86

    Partly Sunny

    • 76
    • 85

    Partly Sunny

    • 75
    • 84

    Partly Sunny

    • 75
    • 83

    Partly Sunny

    • 75
    • 83

    Mostly Sunny

Today 28 Sep South Maui/Upcountry

Sunny. Highs around 90 near the shore to around 78 near 4000 feet. North Winds up to 10 Mph shifting to the west in the afternoon.

Tonight 28 Sep South Maui/Upcountry

Partly cloudy. Lows 71 to 76 near the shore to around 58 near 4000 feet. North Winds up to 10 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 12 September, 2026

    66.9 °F

  • Average September

    80.1 °F

  • Highest 15 September, 2026

    91 °F

Climate (2021–2026)

Kahului, Kahului Airport (18 miles)

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  • Average Low 2021–2026

    69 °F

  • Average 2021–2026

    76.8 °F

  • Average High 2021–2026

    85.3 °F
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