Alcatraz Island Weather Forecast

    • 52
    • 57

    Decreasing Clouds

    • 53
    • 58

    Mostly Sunny

    • 55
    • 62

    Mostly Sunny

    • 54
    • 62

    Mostly Sunny

    • 53
    • 59

    Mostly Sunny

    • 54
    • 60

    Breezy

Today 15 Jun San Francisco

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

Tonight 15 Jun San Francisco

Partly cloudy. Lows in the lower 50s. West Winds 10 to 20 Mph.

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Alcatraz Island Temperature Statistics

June Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 11 June, 2025

    54 °F

  • Average June

    60.6 °F

  • Highest 3 June, 2025

    70.6 °F

Climate (2020–Present)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    67.3 °F
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