San Clemente Island - Mosquito Cove Weather Forecast

    • 53
    • 65

    Gradual Clearing

    • 52
    • 65

    Mostly Cloudy

    • 51
    • 63

    Mostly Cloudy

    • 53
    • 63

    Mostly Cloudy

    • 54
    • 64

    Partly Sunny

    • 54
    • 64

    Partly Sunny

    • 55
    • 65

    Partly Sunny

Today 24 May Catalina and Santa Barbara Islands

Mostly cloudy. Highs in the 60s.

Tonight 24 May Catalina and Santa Barbara Islands

Low Clouds and fog. Lows in the lower to mid 50s.

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  • Temperature Real-Time

San Clemente Island - Mosquito Cove Temperature Statistics

May Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 5 May, 2026

    60.1 °F

  • Average May

    68.1 °F

  • Highest 20 May, 2026

    77 °F

Climate (2021–Present)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2021–2026

    57.6 °F

  • Average 2021–2026

    62 °F

  • Average High 2021–2026

    66.4 °F
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