Santa Catalina Island - Catalina Harbor Weather Forecast

    • 65
    • 76

    Increasing Clouds

    • 66
    • 77

    Partly Sunny

    • 72
    • 78

    Mostly Sunny

    • 72
    • 82

    Mostly Sunny

    • 72
    • 79

    Mostly Sunny

    • 72
    • 79

    Mostly Sunny

Today 30 Sep Catalina and Santa Barbara Islands

Low Clouds and fog in the morning then sunny. Highs in the mid 70s to lower 80s.

Tonight 30 Sep Catalina and Santa Barbara Islands

Low Clouds and fog. Lows in the mid 50s to lower 60s.

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  • Temperature Real-Time

Santa Catalina Island - Catalina Harbor Temperature Statistics

September Temperature

Torrance, Zamperini Field Airport (26.7 miles)

  • Lowest 2 September, 2026

    60.8 °F

  • Average September

    71.2 °F

  • Highest 9 September, 2026

    98.6 °F

Climate (2021–2026)

Torrance, Zamperini Field Airport (26.7 miles)

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  • Average Low 2021–2026

    56.1 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    72.2 °F
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