San Nicholas Island - Dutch Harbor Weather Forecast

    • 66
    • 77

    Increasing Clouds

    • 66
    • 75

    Patchy Fog

    • 66
    • 76

    Mostly Cloudy

    • 64
    • 76

    Partly Sunny

    • 63
    • 72

    Mostly Sunny

    • 64
    • 73

    Mostly Sunny

Today 23 Sep Catalina and Santa Barbara Islands

Partly cloudy. Highs from the mid 70s to around 80 near the coast to the mid 80s interior.

Tonight 23 Sep Catalina and Santa Barbara Islands

Partly cloudy in the evening then Areas of low Clouds and fog. Lows in the mid 60s.

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San Nicholas Island - Dutch Harbor Temperature Statistics

September Temperature

San Nicolas Island Naval Outlying Field (1.9 miles)

  • Lowest 1 September, 2026

    57 °F

  • Average September

    67.1 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

San Nicolas Island Naval Outlying Field (1.9 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    65.2 °F
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