Alcatraz Island Weather Forecast

    • 57
    • 62

    Chance Rain Showers

    • 57
    • 60

    Rain Showers

    • 52
    • 58

    Rain Showers

    • 51
    • 54

    Rain Showers

    • 52
    • 58

    Mostly Sunny

    • 52
    • 59

    Mostly Sunny

    • 53
    • 60

    Partly Sunny

Today 9 Apr San Francisco

Partly cloudy. Highs in the 60s to lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 9 Apr San Francisco

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alcatraz Island Temperature Statistics

April Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 3 April, 2026

    42.7 °F

  • Average April

    60 °F

  • Highest 5 April, 2026

    80.7 °F

Climate (2021–Present)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    67 °F
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