San Francisco Bay - South San Francisco Weather Forecast

    • 62
    • 88

    Becoming Sunny

    • 61
    • 85

    Sunny

    • 62
    • 85

    Mostly Sunny

    • 61
    • 83

    Mostly Sunny

    • 60
    • 72

    Mostly Sunny

    • 60
    • 69

    Partly Sunny

    • 58
    • 66

    Partly Sunny

Today 4 Oct San Francisco Bay Shoreline

Mostly cloudy. Highs in the upper 80s to mid 90s. Light Winds. Becoming northwest 10 to 15 Mph in the afternoon.

Tonight 4 Oct San Francisco Bay Shoreline

Mostly clear. Lows in the mid 60s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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San Francisco Bay - South San Francisco Temperature Statistics

October Temperature

San Francisco, San Francisco International Airport (3.1 miles)

  • Lowest 1 October, 2026

    54 °F

  • Average October

    61.5 °F

  • Highest 2 October, 2026

    73.9 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (3.1 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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