San Clemente Island - Northwest Harbor Weather Forecast

    • 51
    • 57

    Breezy

    • 52
    • 58

    Partly Sunny

    • 53
    • 61

    Mostly Sunny

    • 54
    • 62

    Mostly Sunny

    • 54
    • 64

    Mostly Sunny

    • 54
    • 62

    Partly Sunny

Today 2 Apr Catalina and Santa Barbara Islands

Sunny. Highs in the mid 50s to around 60. Areas of northwest Winds 25 to 35 Mph.

Tonight 2 Apr Catalina and Santa Barbara Islands

Mostly clear. Lows in the mid 40s to mid 50s. Areas of west Winds 20 to 30 Mph.

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San Clemente Island - Northwest Harbor Temperature Statistics

April Temperature

San Clemente Island NALF (0.6 miles)

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Climate (2020–Present)

San Clemente Island NALF (0.6 miles)

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  • Average Low 2020–2025

    56.9 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    66.3 °F
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