Harbor Island Weather Forecast

    • 69
    • 77

    Increasing Clouds

    • 69
    • 79

    Increasing Clouds

    • 69
    • 77

    Mostly Cloudy

    • 68
    • 76

    Mostly Cloudy

    • 68
    • 75

    Mostly Cloudy

    • 67
    • 76

    Mostly Cloudy

    • 68
    • 75

    Mostly Cloudy

Today 14 Jul San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 75 to 80 near the coast to 82 to 87 inland. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 14 Jul San Diego County Coastal Areas

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 64 to 70. Areas of Winds west to 10 Mph this evening becoming light.

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Harbor Island Temperature Statistics

July Temperature

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

  • Lowest 1 July, 2026

    64.7 °F

  • Average July

    70.2 °F

  • Highest 4 July, 2026

    77.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    64.1 °F

  • Average High 2021–2026

    71 °F
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