San Francisco Bay - Sierra Point Marina Weather Forecast

    • 65
    • 92

    Decreasing Clouds

    • 60
    • 80

    Partly Sunny

    • 58
    • 73

    Mostly Sunny

    • 58
    • 70

    Breezy

    • 58
    • 68

    Mostly Sunny

    • 58
    • 67

    Partly Sunny

    • 58
    • 65

    Partly Sunny

Today 9 Sep San Francisco Bay Shoreline

Partly cloudy. Highs in the 90s. Northwest Winds 5 to 15 Mph.

Tonight 9 Sep San Francisco Bay Shoreline

Partly cloudy. Lows in the mid 60s to lower 70s. West Winds 10 to 15 Mph. Becoming southwest up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Sierra Point Marina Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 7 September, 2026

    57 °F

  • Average September

    66.6 °F

  • Highest 7 September, 2026

    80.1 °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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