Harbor Island Weather Forecast

    • 60
    • 69

    Rain

    • 57
    • 66

    Chance Rain Showers

    • 54
    • 64

    Rain Showers

    • 48
    • 61

    Partly Sunny

    • 49
    • 65

    Partly Sunny

    • 54
    • 69

    Mostly Cloudy

    • 56
    • 71

    Chance Rain Showers

Today 24 Dec San Diego County Coastal Areas

A slight chance of Thunderstorms. A chance of rain this Morning, then rain this afternoon. Rain may be heavy at Times this afternoon. Highs 68 to 72. Areas of Winds south 15 to 25 Mph. Gusts to 35 Mph. Becoming 40 Mph this afternoon.

Tonight 24 Dec San Diego County Coastal Areas

Rain and a slight chance of Thunderstorms this Evening, then a chance of Showers overnight. Lows 56 to 59. Areas of Winds south 10 to 20 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harbor Island Temperature Statistics

December Temperature

San Diego, San Diego International-Lindbergh Field (0.6 miles)

  • Lowest 5 December, 2025

    46 °F

  • Average December

    59.2 °F

  • Highest 10 December, 2025

    80.1 °F

Climate (2020–Present)

San Diego, San Diego International-Lindbergh Field (0.6 miles)

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  • Average Low 2020–2025

    57.9 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    70.6 °F
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