San Clemente Island - Mosquito Cove Weather Forecast

    • 56
    • 66

    Partly Sunny

    • 57
    • 68

    Gradual Clearing

    • 59
    • 72

    Mostly Sunny

    • 59
    • 73

    Mostly Sunny

    • 59
    • 73

    Patchy Fog

    • 58
    • 72

    Mostly Cloudy

    • 58
    • 72

    Patchy Fog

Today 5 Nov Catalina and Santa Barbara Islands

Mostly cloudy with a 20 percent chance of rain. Highs in the lower to mid 60s.

Tonight 5 Nov Catalina and Santa Barbara Islands

Mostly cloudy. Lows in the mid to upper 50s.

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San Clemente Island - Mosquito Cove Temperature Statistics

November Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 1 November, 2025

    57 °F

  • Average November

    60.3 °F

  • Highest 1 November, 2025

    64.9 °F

Climate (2020–Present)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    61.2 °F

  • Average High 2020–2025

    66 °F
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