Keawekāheka Bay Weather Forecast

    • 72
    • 87

    Rain Showers

    • 72
    • 86

    Rain Showers

    • 72
    • 86

    Rain Showers

    • 72
    • 87

    Rain Showers

    • 73
    • 88

    Mostly Sunny

    • 74
    • 89

    Mostly Sunny

Today 10 Sep Kona

Partly sunny. Scattered Showers in the Morning, then scattered Showers and isolated Thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Highs 84 to 89 near the shore to around 69 near 5000 feet. Light Winds. Chance of rain 50 percent.

Tonight 10 Sep Kona

Mostly cloudy. Scattered Showers in the Evening, then isolated Showers after midnight. Lows 69 to 76 near the shore to around 58 near 5000 feet. Light Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keawekāheka Bay Temperature Statistics

September Temperature

Kailua / Kona, Keahole Airport (18 miles)

  • Lowest 1 September, 2026

    75.9 °F

  • Average September

    82.7 °F

  • Highest 4 September, 2026

    89.1 °F

Climate (2021–2026)

Kailua / Kona, Keahole Airport (18 miles)

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  • Average Low 2021–2026

    73.4 °F

  • Average 2021–2026

    79.1 °F

  • Average High 2021–2026

    84.7 °F
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