San Clemente Island - Mosquito Cove Weather Forecast

    • 58
    • 73

    Mostly Cloudy

    • 58
    • 74

    Mostly Cloudy

    • 59
    • 74

    Patchy Fog

    • 59
    • 76

    Mostly Sunny

    • 60
    • 76

    Mostly Sunny

    • 62
    • 81

    Mostly Sunny

Today 10 Jul Catalina and Santa Barbara Islands

Low Clouds and fog with partial afternoon clearing. Highs from the upper 60s to mid 70s near the coast to the lower to mid 80s interior.

Tonight 10 Jul Catalina and Santa Barbara Islands

Low Clouds and fog. Lows in the lower 60s.

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San Clemente Island - Mosquito Cove Temperature Statistics

July Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 1 July, 2026

    64 °F

  • Average July

    69.6 °F

  • Highest 1 July, 2026

    73 °F

Climate (2021–2026)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2021–2026

    57.7 °F

  • Average 2021–2026

    62.2 °F

  • Average High 2021–2026

    66.6 °F
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