Alameda Harbor - Coast Guard Island Weather Forecast

    • 62
    • 80

    Mostly Sunny

    • 61
    • 79

    Mostly Cloudy

    • 57
    • 72

    Mostly Cloudy

    • 56
    • 70

    Partly Sunny

    • 56
    • 68

    Mostly Cloudy

    • 56
    • 65

    Mostly Cloudy

Today 26 Aug San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s. West Winds 5 to 15 Mph.

Tonight 26 Aug San Francisco Bay Shoreline

Mostly cloudy. Lows around 60. West Winds 5 to 10 Mph.

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Alameda Harbor - Coast Guard Island Temperature Statistics

August Temperature

Oakland, Metro Oakland International Airport (4.3 miles)

  • Lowest 2 August, 2026

    54.6 °F

  • Average August

    65.2 °F

  • Highest 2 August, 2026

    80.7 °F

Climate (2021–2026)

Oakland, Metro Oakland International Airport (4.3 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    58.9 °F

  • Average High 2021–2026

    67.2 °F
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