Waipahu Weather Forecast

    • 72
    • 82

    Rain Showers

    • 72
    • 81

    Mostly Cloudy

    • 72
    • 81

    Mostly Cloudy

    • 70
    • 79

    Mostly Cloudy

    • 69
    • 80

    Partly Sunny

    • 69
    • 80

    Partly Sunny

    • 68
    • 81

    Partly Sunny

Today 20 Dec Ewa Plain

Mostly sunny with isolated Showers and Thunderstorms in the Morning, then partly sunny with scattered Showers and isolated Thunderstorms in the afternoon. Locally heavy rainfall possible in the morning. Highs 75 to 82. Light Winds. Chance of rain 40 percent.

Tonight 20 Dec Ewa Plain

Mostly cloudy. Isolated Thunderstorms in the evening. Lows 67 to 72. Light Winds becoming east around 10 Mph after midnight. Chance of rain 20 percent.

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Waipahu Temperature Statistics

December Temperature

Daniel K Inouye International Airport (5.6 miles)

  • Lowest 1 December, 2025

    64.9 °F

  • Average December

    76.3 °F

  • Highest 6 December, 2025

    84.9 °F

Climate (2020–Present)

Daniel K Inouye International Airport (5.6 miles)

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  • Average Low 2020–2025

    72.7 °F

  • Average 2020–2025

    78.1 °F

  • Average High 2020–2025

    84.9 °F
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