San Clemente Island - Wilson Cove Weather Forecast

    • 63
    • 74

    Increasing Clouds

    • 64
    • 75

    Partly Sunny

    • 65
    • 76

    Partly Sunny

    • 65
    • 76

    Partly Sunny

    • 66
    • 78

    Partly Sunny

    • 65
    • 79

    Partly Sunny

Today 21 Sep Catalina and Santa Barbara Islands

Mostly cloudy. Highs in the 70s.

Tonight 21 Sep Catalina and Santa Barbara Islands

Low Clouds and fog near the coast early Spreading inland. Lows in the mid 50s to mid 60s.

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San Clemente Island - Wilson Cove Temperature Statistics

September Temperature

San Clemente Island NALF (1.9 miles)

  • Lowest 1 September, 2026

    66.9 °F

  • Average September

    74.9 °F

  • Highest 9 September, 2026

    87.1 °F

Climate (2021–2026)

San Clemente Island NALF (1.9 miles)

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  • Average Low 2021–2026

    57.9 °F

  • Average 2021–2026

    62.4 °F

  • Average High 2021–2026

    66.8 °F
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