Santa Cruz Island - Prisoners Harbor Weather Forecast

    • 64
    • 72

    Mostly Cloudy

    • 61
    • 70

    Partly Sunny

    • 66
    • 73

    Mostly Sunny

    • 69
    • 77

    Mostly Sunny

    • 68
    • 77

    Mostly Sunny

    • 68
    • 76

    Partly Sunny

Today 20 Sep Santa Cruz and Anacapa Islands

Low Clouds and fog in the morning then mostly cloudy. Highs in the 70s to around 80.

Tonight 20 Sep Santa Cruz and Anacapa Islands

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

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Santa Cruz Island - Prisoners Harbor Temperature Statistics

September Temperature

Santa Barbara, Santa Barbara Municipal Airport (29.2 miles)

  • Lowest 2 September, 2026

    53.7 °F

  • Average September

    71.2 °F

  • Highest 9 September, 2026

    96.7 °F

Climate (2021–2026)

Santa Barbara, Santa Barbara Municipal Airport (29.2 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    70 °F
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