Harbor Island Weather Forecast

    • 53
    • 64

    Mostly Cloudy

    • 54
    • 64

    Slight Chance Thunderstorms

    • 54
    • 63

    Mostly Cloudy

    • 54
    • 65

    Mostly Sunny

    • 55
    • 67

    Partly Sunny

    • 56
    • 67

    Mostly Cloudy

    • 56
    • 66

    Partly Sunny

Today 25 Apr San Diego County Coastal Areas

Cloudy with patchy drizzle this Morning, then mostly cloudy this afternoon. Highs around 64. Light Winds becoming west 10 Mph this afternoon.

Tonight 25 Apr San Diego County Coastal Areas

Mostly cloudy. A slight chance of rain overnight. Lows 47 to 53. Areas of Winds west 10 Mph this evening becoming light. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

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Harbor Island Temperature Statistics

April Temperature

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

  • Lowest 4 April, 2025

    49.6 °F

  • Average April

    61.7 °F

  • Highest 11 April, 2025

    76.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    58 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    71 °F
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