Ko Olina Marina Weather Forecast

    • 75
    • 87

    Mostly Sunny

    • 76
    • 87

    Mostly Sunny

    • 76
    • 87

    Partly Sunny

    • 77
    • 88

    Partly Sunny

    • 76
    • 87

    Partly Sunny

    • 75
    • 87

    Mostly Sunny

Today 16 Sep Waianae Coast

Sunny. Highs 86 to 91. Northeast Winds up to 15 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 16 Sep Waianae Coast

Mostly clear. Lows around 75. Northeast Winds 10 to 15 Mph.

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Ko Olina Marina Temperature Statistics

September Temperature

Oahu, Kalaeloa Airport (3.1 miles)

  • Lowest 4 September, 2025

    69.1 °F

  • Average September

    79.9 °F

  • Highest 12 September, 2025

    90 °F

Climate (2020–Present)

Oahu, Kalaeloa Airport (3.1 miles)

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  • Average Low 2020–2025

    70.3 °F

  • Average 2020–2025

    77.8 °F

  • Average High 2020–2025

    85.6 °F
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