Santa Catalina Island - Avalon Bay Weather Forecast

    • 55
    • 65

    Dense Fog

    • 54
    • 63

    Partly Sunny

    • 55
    • 65

    Mostly Sunny

    • 55
    • 66

    Mostly Sunny

    • 61
    • 66

    Mostly Sunny

    • 60
    • 65

    Mostly Sunny

    • 60
    • 64

    Partly Sunny

Today 13 Dec Catalina and Santa Barbara Islands

Low Clouds and fog clearing to the Beaches in the afternoon. Fog locally dense with visibility one quarter mile or less. Highs from around 60 near the coast to around 70 interior.

Tonight 13 Dec Catalina and Santa Barbara Islands

Areas of low Clouds and fog. Fog locally dense with visibility one quarter mile or less. Lows in the mid 30s to mid 40s except the mid to upper 50s in the Hills.

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Santa Catalina Island - Avalon Bay Temperature Statistics

December Temperature

San Clemente Island NALF (26.7 miles)

  • Lowest 2 December, 2025

    50 °F

  • Average December

    63 °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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