Santa Catalina Island - Emerald Bay Weather Forecast

    • 66
    • 81

    Decreasing Clouds

    • 66
    • 81

    Mostly Cloudy

    • 66
    • 81

    Partly Sunny

    • 65
    • 82

    Mostly Sunny

    • 65
    • 82

    Partly Sunny

    • 66
    • 82

    Partly Sunny

Today 20 Aug Catalina and Santa Barbara Islands

Low Clouds and fog in the morning then partly cloudy. Highs from the lower to mid 70s near the coast to the mid 80s to around 90 interior.

Tonight 20 Aug Catalina and Santa Barbara Islands

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

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Santa Catalina Island - Emerald Bay Temperature Statistics

August Temperature

Torrance, Zamperini Field Airport (25.5 miles)

  • Lowest 17 August, 2026

    63.7 °F

  • Average August

    70.6 °F

  • Highest 1 August, 2026

    80.6 °F

Climate (2021–2026)

Torrance, Zamperini Field Airport (25.5 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    72.1 °F
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