San Francisco Bay - Sierra Point Marina Weather Forecast

    • 56
    • 70

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 64
    • 81

    Partly Sunny

    • 67
    • 88

    Partly Sunny

    • 63
    • 76

    Mostly Sunny

    • 61
    • 69

    Partly Sunny

    • 60
    • 68

    Partly Sunny

Today 6 Sep San Francisco Bay Shoreline

Sunny. Highs in the upper 60s to mid 70s. West Winds 10 to 20 Mph.

Tonight 6 Sep San Francisco Bay Shoreline

Mostly clear. Lows in the upper 50s. West Winds 10 to 20 Mph. Becoming south 5 to 10 Mph after midnight.

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  • Temperature Real-Time

San Francisco Bay - Sierra Point Marina Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 4 September, 2026

    57.9 °F

  • Average September

    66.4 °F

  • Highest 2 September, 2026

    73.7 °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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