Santa Catalina Island - Avalon Bay Weather Forecast

    • 58
    • 64

    Decreasing Clouds

    • 58
    • 63

    Cloudy

    • 61
    • 66

    Rain Showers

    • 60
    • 66

    Rain Showers

    • 59
    • 66

    Rain Showers

    • 58
    • 65

    Rain Showers

Today 21 Dec Catalina and Santa Barbara Islands

Cloudy in the morning then partly cloudy. Highs in the 60s.

Tonight 21 Dec Catalina and Santa Barbara Islands

Cloudy. Lows in the mid 50s.

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  • Temperature Real-Time

Santa Catalina Island - Avalon Bay Temperature Statistics

December Temperature

San Clemente Island NALF (26.7 miles)

  • Lowest 2 December, 2025

    50 °F

  • Average December

    62 °F

  • Highest 9 December, 2025

    70 °F

Climate (2020–Present)

San Clemente Island NALF (26.7 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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