Santa Catalina Island - Avalon Bay Weather Forecast

    • 55
    • 68

    Gradual Clearing

    • 55
    • 68

    Mostly Cloudy

    • 57
    • 65

    Rain Likely

    • 57
    • 66

    Mostly Sunny

    • 57
    • 66

    Partly Sunny

    • 58
    • 66

    Partly Sunny

Today 23 Apr Catalina and Santa Barbara Islands

Low Clouds and fog in the morning then partly cloudy. Highs in the mid 60s to lower 70s.

Tonight 23 Apr Catalina and Santa Barbara Islands

Partly cloudy in the evening then mostly clear. Lows in the 50s to around 60.

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  • Temperature Real-Time

Santa Catalina Island - Avalon Bay Temperature Statistics

April Temperature

San Clemente Island NALF (26.7 miles)

  • Lowest 3 April, 2026

    58.6 °F

  • Average April

    65.3 °F

  • Highest 17 April, 2026

    71.2 °F

Climate (2021–Present)

San Clemente Island NALF (26.7 miles)

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  • Average Low 2021–2026

    57.5 °F

  • Average 2021–2026

    61.8 °F

  • Average High 2021–2026

    66.3 °F
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