Harbor Island Weather Forecast

    • 58
    • 67

    Rain Showers

    • 56
    • 67

    Mostly Sunny

    • 58
    • 70

    Mostly Sunny

    • 59
    • 72

    Mostly Sunny

    • 60
    • 75

    Partly Sunny

    • 59
    • 72

    Mostly Cloudy

Today 14 Oct San Diego County Coastal Areas

Showers likely this Morning, then Showers and a slight chance of Thunderstorms this afternoon. Locally heavy rainfall possible this afternoon. Highs 65 to 68. Areas of Winds south 15 to 25 Mph with Gusts to 35 Mph.

Tonight 14 Oct San Diego County Coastal Areas

Partly cloudy. A chance of Showers in the evening. Lows 52 to 57. Areas of Winds west to 10 Mph in the evening becoming light. Chance of measurable precipitation 50 percent.

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Harbor Island Temperature Statistics

October Temperature

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

  • Lowest 5 October, 2025

    60.1 °F

  • Average October

    67.5 °F

  • Highest 1 October, 2025

    73.9 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    57.8 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    70.7 °F
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