Santa Catalina Island - Little Harbor Weather Forecast

    • 64
    • 75

    Mostly Cloudy

    • 63
    • 79

    Mostly Cloudy

    • 64
    • 77

    Partly Sunny

    • 65
    • 75

    Partly Sunny

    • 65
    • 78

    Partly Sunny

    • 64
    • 78

    Partly Sunny

Today 17 Aug Catalina and Santa Barbara Islands

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

Tonight 17 Aug Catalina and Santa Barbara Islands

Partly cloudy in the evening then Areas of low Clouds and fog. 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 3 August, 2026

    66 °F
  • Average August

    74.3 °F
  • Highest 14 August, 2026

    81 °F

Climate (2021–2026)

San Clemente Island NALF (25.5 miles)

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  • Average Low 2021–2026

    57.8 °F
  • Average 2021–2026

    62.3 °F
  • Average High 2021–2026

    66.7 °F
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