Harbor Island Weather Forecast

    • 66
    • 78

    Patchy Fog

    • 65
    • 76

    Patchy Fog

    • 65
    • 74

    Patchy Fog

    • 66
    • 75

    Patchy Fog

    • 67
    • 75

    Patchy Fog

    • 67
    • 76

    Mostly Sunny

Today 29 Sep San Diego County Coastal Areas

Mostly cloudy in the morning. Becoming mostly sunny. Patchy dense fog in the morning. Local visibility one quarter mile or less at Times in the morning. Highs in the upper 70s near the coast to in the mid 80s inland. Light Winds.

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Harbor Island Temperature Statistics

September Temperature

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

  • Lowest 22 September, 2022

    62.1 °F
  • Average September

    75.1 °F
  • Highest 3 September, 2022

    93 °F

Climate (2010–Present)

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

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  • Average Low 2010–Present

    58.9 °F
  • Average 2010–Present

    64.6 °F
  • Average High 2010–Present

    71.2 °F
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