Santa Catalina Island - Goat Harbor Weather Forecast

    • 67
    • 78

    Chance Rain Showers

    • 67
    • 81

    Rain Showers Likely

    • 68
    • 85

    Partly Sunny

    • 69
    • 86

    Chance Rain Showers

    • 69
    • 88

    Mostly Sunny

    • 67
    • 85

    Mostly Sunny

    • 65
    • 82

    Mostly Sunny

Today 5 Sep Catalina and Santa Barbara Islands

Sunny in the morning then partly cloudy. Highs from the lower to mid 70s near the coast to the lower to mid 80s interior.

Tonight 5 Sep Catalina and Santa Barbara Islands

Cloudy. A chance of Showers after midnight. Lows in the upper 60s. Chance of precipitation 20 percent.

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  • Temperature Real-Time

Santa Catalina Island - Goat Harbor Temperature Statistics

September Temperature

Avalon Catalina Airport (1.2 miles)

  • Lowest 1 September, 2026

    57.7 °F

  • Average September

    64 °F

  • Highest 1 September, 2026

    71.7 °F

Climate (2021–2026)

Avalon Catalina Airport (1.2 miles)

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  • Average Low 2021–2026

    56.2 °F

  • Average 2021–2026

    62.5 °F

  • Average High 2021–2026

    69 °F
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