Alcatraz Island Weather Forecast

    • 59
    • 66

    Increasing Clouds

    • 57
    • 62

    Breezy

    • 54
    • 59

    Breezy

    • 55
    • 60

    Mostly Sunny

    • 55
    • 61

    Partly Sunny

    • 56
    • 61

    Mostly Sunny

    • 57
    • 63

    Mostly Sunny

Today 8 Oct San Francisco

Sunny. Highs in the mid 60s to upper 70s. West Winds 5 to 15 Mph.

Tonight 8 Oct San Francisco

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alcatraz Island Temperature Statistics

October Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 1 October, 2026

    52.6 °F

  • Average October

    68.6 °F

  • Highest 3 October, 2026

    91.7 °F

Climate (2021–2026)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    67.2 °F
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