Santa Catalina Island - Little Harbor Weather Forecast

    • 63
    • 77

    Increasing Clouds

    • 62
    • 76

    Partly Sunny

    • 61
    • 72

    Partly Sunny

    • 61
    • 71

    Patchy Fog

    • 61
    • 71

    Patchy Fog

    • 61
    • 72

    Patchy Fog

Today 23 Aug Catalina and Santa Barbara Islands

Mostly cloudy with a 20 percent chance of Showers. Patchy low Clouds and fog in the morning. Fog locally dense with visibility one quarter mile or less. Highs from the mid 70s to around 80 near the coast to the mid 80s interior.

Tonight 23 Aug Catalina and Santa Barbara Islands

Mostly clear except for patchy low Clouds and fog after midnight. Lows in the lower to mid 60s.

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Santa Catalina Island - Little Harbor Temperature Statistics

August Temperature

San Clemente Island NALF (25.5 miles)

  • Lowest 4 August, 2025

    55.9 °F

  • Average August

    63.9 °F

  • Highest 21 August, 2025

    78.1 °F

Climate (2020–Present)

San Clemente Island NALF (25.5 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    61.3 °F

  • Average High 2020–2025

    66.1 °F
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