San Clemente Island - Mosquito Cove Weather Forecast

    • 54
    • 65

    Partly Sunny

    • 55
    • 64

    Rain Likely

    • 58
    • 67

    Rain Likely

    • 61
    • 69

    Mostly Sunny

    • 60
    • 70

    Partly Sunny

    • 60
    • 69

    Partly Sunny

    • 59
    • 69

    Partly Sunny

Today 30 Oct Catalina and Santa Barbara Islands

Partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 30 Oct Catalina and Santa Barbara Islands

Mostly cloudy. A 20 percent chance of Showers in the evening. Lows in the upper 50s to mid 60s.

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San Clemente Island - Mosquito Cove Temperature Statistics

October Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 28 October, 2026

    57.9 °F

  • Average October

    70.6 °F

  • Highest 3 October, 2026

    95 °F

Climate (2021–2026)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    62.6 °F

  • Average High 2021–2026

    67 °F
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