Santa Catalina Island - Little Harbor Weather Forecast

    • 57
    • 69

    Mostly Sunny

    • 55
    • 68

    Increasing Clouds

    • 55
    • 65

    Mostly Cloudy

    • 56
    • 65

    Mostly Cloudy

    • 55
    • 65

    Cloudy

    • 57
    • 65

    Rain Showers

    • 56
    • 65

    Rain Showers

Today 18 Dec Catalina and Santa Barbara Islands

Sunny in the morning then partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 18 Dec Catalina and Santa Barbara Islands

Clear. Lows in the mid to upper 50s.

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Santa Catalina Island - Little Harbor Temperature Statistics

December Temperature

San Clemente Island NALF (25.5 miles)

  • Lowest 2 December, 2025

    50 °F

  • Average December

    61.6 °F

  • Highest 9 December, 2025

    70 °F

Climate (2020–Present)

San Clemente Island NALF (25.5 miles)

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  • Average Low 2020–2025

    56.9 °F

  • Average 2020–2025

    61.3 °F

  • Average High 2020–2025

    66 °F
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