Kapua Bay Weather Forecast

    • 72
    • 86

    Rain Showers

    • 72
    • 86

    Mostly Sunny

    • 72
    • 87

    Partly Sunny

    • 73
    • 86

    Partly Sunny

    • 73
    • 87

    Rain Showers

    • 72
    • 86

    Rain Showers

    • 72
    • 86

    Rain Showers

Today 16 Sep Kona

Mostly sunny with isolated Showers in the Morning, then partly sunny with scattered Showers in the afternoon. Highs 84 to 89 near the shore to around 69 near 5000 feet. Light Winds becoming west around 10 Mph in the afternoon. Chance of rain 50 percent.

Tonight 16 Sep Kona

Partly cloudy. Scattered Showers in the Evening, then isolated Showers after midnight. Lows around 74 near the shore to 50 to 55 near 5000 feet. Light Winds. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Kapua Bay Temperature Statistics

September Temperature

Kailua / Kona, Keahole Airport (42.3 miles)

  • Lowest 2 September, 2025

    75 °F

  • Average September

    81.6 °F

  • Highest 12 September, 2025

    88 °F

Climate (2020–Present)

Kailua / Kona, Keahole Airport (42.3 miles)

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  • Average Low 2020–2025

    73.3 °F

  • Average 2020–2025

    79 °F

  • Average High 2020–2025

    84.7 °F
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