San Clemente Island - Mosquito Cove Weather Forecast

    • 57
    • 75

    Patchy Fog

    • 58
    • 73

    Mostly Cloudy

    • 58
    • 74

    Mostly Cloudy

    • 59
    • 75

    Mostly Cloudy

    • 59
    • 75

    Partly Sunny

    • 61
    • 78

    Partly Sunny

Today 9 Jul Catalina and Santa Barbara Islands

Partly cloudy. Highs from the upper 60s to mid 70s near the coast to the upper 70s to mid 80s interior.

Tonight 9 Jul Catalina and Santa Barbara Islands

Partly cloudy in the evening then Areas of 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

    69.5 °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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