San Francisco Bay - Sierra Point Marina Weather Forecast

    • 59
    • 74

    Slight Chance Thunderstorms

    • 56
    • 69

    Mostly Cloudy

    • 56
    • 67

    Partly Sunny

    • 55
    • 68

    Partly Sunny

    • 56
    • 66

    Partly Sunny

    • 56
    • 68

    Partly Sunny

Today 27 Aug San Francisco Bay Shoreline

Partly cloudy in the morning then becoming mostly cloudy. A slight chance of Showers in the afternoon. Highs in the mid 70s to lower 80s. Northwest Winds 10 to 20 Mph.

Tonight 27 Aug San Francisco Bay Shoreline

Mostly cloudy. A slight chance of Showers. Lows in the lower 60s. West Winds 5 to 15 Mph.

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San Francisco Bay - Sierra Point Marina Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 3 August, 2026

    56.6 °F

  • Average August

    65.2 °F

  • Highest 2 August, 2026

    80.7 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (3.7 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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