Santa Catalina Island - Emerald Bay Weather Forecast

    • 72
    • 87

    Slight Chance Thunderstorms

    • 73
    • 91

    Partly Sunny

    • 73
    • 83

    Mostly Sunny

    • 70
    • 88

    Mostly Sunny

    • 67
    • 84

    Mostly Sunny

    • 65
    • 82

    Mostly Sunny

Today 7 Sep Catalina and Santa Barbara Islands

Mostly cloudy in the Morning, becoming partly cloudy with a slight chance of Thunderstorms in the afternoon. Highs from around 80 near the coast to around 90 interior. Chance of precipitation 20 percent.

Tonight 7 Sep Catalina and Santa Barbara Islands

Partly cloudy in the evening then mostly cloudy. Lows in the lower 70s.

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Santa Catalina Island - Emerald Bay Temperature Statistics

September Temperature

Torrance, Zamperini Field Airport (25.5 miles)

  • Lowest 2 September, 2026

    60.8 °F

  • Average September

    68.3 °F

  • Highest 5 September, 2026

    84.2 °F

Climate (2021–2026)

Torrance, Zamperini Field Airport (25.5 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    72.1 °F
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