Alameda Harbor - Fortman Marina Weather Forecast

    • 60
    • 72

    Decreasing Clouds

    • 61
    • 73

    Partly Sunny

    • 62
    • 75

    Partly Sunny

    • 62
    • 74

    Mostly Cloudy

    • 61
    • 73

    Mostly Cloudy

    • 60
    • 73

    Mostly Cloudy

Today 5 Sep San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower to mid 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 5 Sep San Francisco Bay Shoreline

Mostly cloudy. Lows in the lower 60s. West Winds 5 to 10 Mph.

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Alameda Harbor - Fortman Marina Temperature Statistics

September Temperature

Oakland, Metro Oakland International Airport (4.3 miles)

  • Lowest 1 September, 2025

    59 °F

  • Average September

    66 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Oakland, Metro Oakland International Airport (4.3 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    67.2 °F
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