San Clemente Island - Mosquito Cove Weather Forecast

    • 55
    • 66

    Mostly Cloudy

    • 54
    • 67

    Decreasing Clouds

    • 56
    • 69

    Mostly Sunny

    • 57
    • 70

    Mostly Sunny

    • 57
    • 69

    Partly Sunny

    • 55
    • 67

    Mostly Cloudy

    • 54
    • 65

    Partly Sunny

Today 27 Jan Catalina and Santa Barbara Islands

Sunny in the morning then partly cloudy. Highs in the mid 60s.

Tonight 27 Jan Catalina and Santa Barbara Islands

Partly cloudy in the evening then mostly cloudy. Lows in the mid 30s to mid 40s except the mid to upper 50s in the Hills.

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San Clemente Island - Mosquito Cove Temperature Statistics

January Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 22 January, 2026

    55 °F

  • Average January

    62.6 °F

  • Highest 15 January, 2026

    70 °F

Climate (2021–Present)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    61.4 °F

  • Average High 2021–2026

    66.1 °F
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