San Nicolas Island - North Side Weather Forecast

    • 56
    • 74

    Mostly Cloudy

    • 55
    • 64

    Partly Sunny

    • 57
    • 65

    Partly Sunny

    • 56
    • 64

    Slight Chance Rain

    • 56
    • 63

    Breezy

    • 55
    • 63

    Breezy

Today 18 Apr Catalina and Santa Barbara Islands

Sunny in the morning then partly cloudy. Highs in the 70s to lower 80s.

Tonight 18 Apr Catalina and Santa Barbara Islands

Mostly cloudy. Lows in the mid 50s.

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San Nicolas Island - North Side Temperature Statistics

April Temperature

San Nicolas Island Naval Outlying Field (3.1 miles)

  • Lowest 13 April, 2026

    50 °F

  • Average April

    60 °F

  • Highest 5 April, 2026

    77 °F

Climate (2021–Present)

San Nicolas Island Naval Outlying Field (3.1 miles)

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  • Average Low 2021–2026

    54.1 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    65 °F
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