Santa Cruz Island - Potato Harbor Weather Forecast

    • 63
    • 86

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

    • 62
    • 85

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 60
    • 77

    Mostly Sunny

    • 60
    • 76

    Mostly Sunny

Today 21 Aug Santa Cruz and Anacapa Islands

Sunny. Highs in the mid 70s to mid 80s except the lower to mid 90s farthest interior.

Tonight 21 Aug Santa Cruz and Anacapa Islands

Mostly clear. Lows in the upper 50s to mid 60s.

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Santa Cruz Island - Potato Harbor Temperature Statistics

August Temperature

Oxnard, Oxnard Airport (24.2 miles)

  • Lowest 4 August, 2025

    57.7 °F

  • Average August

    65.8 °F

  • Highest 18 August, 2025

    75 °F

Climate (2020–Present)

Oxnard, Oxnard Airport (24.2 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    68.2 °F
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