Alcatraz Island Weather Forecast

    • 54
    • 63

    Increasing Clouds

    • 55
    • 66

    Mostly Sunny

    • 54
    • 67

    Patchy Fog

    • 55
    • 66

    Mostly Sunny

    • 55
    • 65

    Patchy Fog

    • 55
    • 65

    Partly Sunny

    • 54
    • 65

    Mostly Sunny

Today 18 Sep San Francisco

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the upper 50s to mid 60s. Southwest Winds 10 to 20 Mph.

Tonight 18 Sep San Francisco

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. West Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alcatraz Island Temperature Statistics

September Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 12 September, 2018

    52 °F

  • Average September

    61 °F

  • Highest 10 September, 2018

    75 °F

Climate (2010–Present)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2010–Present

    51.6 °F

  • Average 2010–Present

    58.5 °F

  • Average High 2010–Present

    66.9 °F
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