Harbor Island Weather Forecast

    • 58
    • 69

    Increasing Clouds

    • 59
    • 72

    Partly Sunny

    • 59
    • 73

    Mostly Cloudy

    • 58
    • 72

    Rain Showers Likely

    • 57
    • 68

    Chance Thunderstorms

    • 56
    • 67

    Chance Rain Showers

Today 7 Apr San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 67 to 71 near the coast to 71 to 75 inland. Areas of Winds west to 10 Mph.

Tonight 7 Apr San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 53 to 57. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harbor Island Temperature Statistics

April Temperature

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

  • Lowest 4 April, 2026

    54 °F

  • Average April

    65.9 °F

  • Highest 4 April, 2026

    79 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    64 °F

  • Average High 2021–2026

    70.9 °F
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