San Bruno Weather Forecast

    • 50
    • 60

    Increasing Clouds

    • 51
    • 60

    Partly Sunny

    • 51
    • 60

    Partly Sunny

    • 52
    • 61

    Partly Sunny

    • 53
    • 64

    Partly Sunny

    • 52
    • 63

    Mostly Sunny

Today 6 Dec San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.

Tonight 6 Dec San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s. Northwest Winds 5 to 10 Mph.

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San Bruno Temperature Statistics

December Temperature

San Francisco, San Francisco International Airport (2.5 miles)

  • Lowest 2 December, 2025

    45 °F

  • Average December

    52.1 °F

  • Highest 3 December, 2025

    63 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (2.5 miles)

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  • Average Low 2020–2025

    52.4 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.5 °F
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