Santa Catalina Island - Buffalo Beach Weather Forecast

    • 59
    • 76

    Increasing Clouds

    • 54
    • 77

    Partly Sunny

    • 52
    • 69

    Partly Sunny

    • 52
    • 68

    Partly Sunny

    • 51
    • 65

    Partly Sunny

    • 51
    • 63

    Mostly Cloudy

Today 20 May Catalina and Santa Barbara Islands

Sunny. Highs in the lower to mid 70s.

Tonight 20 May Catalina and Santa Barbara Islands

Partly cloudy. Lows in the mid to upper 50s.

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Santa Catalina Island - Buffalo Beach Temperature Statistics

May Temperature

Avalon Catalina Airport (2.5 miles)

  • Lowest 5 May, 2026

    49.6 °F

  • Average May

    59 °F

  • Highest 11 May, 2026

    79.6 °F

Climate (2021–Present)

Avalon Catalina Airport (2.5 miles)

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  • Average Low 2021–2026

    56.2 °F

  • Average 2021–2026

    62.2 °F

  • Average High 2021–2026

    68.8 °F
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