San Clemente Island - Cove Point Weather Forecast

    • 63
    • 74

    Increasing Clouds

    • 62
    • 71

    Mostly Cloudy

    • 63
    • 71

    Mostly Cloudy

    • 63
    • 72

    Partly Sunny

    • 64
    • 73

    Partly Sunny

    • 65
    • 74

    Partly Sunny

Today 19 Sep Catalina and Santa Barbara Islands

Partly cloudy except for patchy low Clouds and fog in the morning. Highs from the lower 70s near the coast to the lower 80s interior.

Tonight 19 Sep Catalina and Santa Barbara Islands

Partly cloudy in the evening then low Clouds and fog. Lows in the mid 50s to mid 60s.

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San Clemente Island - Cove Point Temperature Statistics

September Temperature

San Clemente Island NALF (16.2 miles)

  • Lowest 1 September, 2026

    66.9 °F

  • Average September

    75.2 °F

  • Highest 9 September, 2026

    87.1 °F

Climate (2021–2026)

San Clemente Island NALF (16.2 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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