Ewa Beach Weather Forecast

    • 70
    • 81

    Rain Showers

    • 71
    • 82

    Mostly Cloudy

    • 71
    • 82

    Mostly Cloudy

    • 71
    • 82

    Mostly Cloudy

    • 70
    • 80

    Mostly Cloudy

    • 69
    • 81

    Partly Sunny

Today 19 Dec Ewa Plain

Mostly cloudy. Slight chance of Thunderstorms early in the morning. Scattered Showers through the day. Isolated Thunderstorms in the afternoon. Locally heavy rainfall possible early in the morning. Highs 75 to 82. Light Winds becoming south around 10 Mph. Chance of rain 50 percent.

Tonight 19 Dec Ewa Plain

Mostly cloudy with scattered Showers. Lows 66 to 72. Light Winds. Chance of rain 50 percent.

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Ewa Beach Temperature Statistics

December Temperature

Oahu, Kalaeloa Airport (3.7 miles)

  • Lowest 1 December, 2025

    64 °F

  • Average December

    75.1 °F

  • Highest 6 December, 2025

    86 °F

Climate (2020–Present)

Oahu, Kalaeloa Airport (3.7 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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