San Bruno Weather Forecast

    • 44
    • 57

    Mostly Sunny

    • 49
    • 56

    Mostly Cloudy

    • 49
    • 54

    Rain

    • 52
    • 56

    Rain Likely

    • 52
    • 58

    Rain Likely

    • 51
    • 57

    Rain Likely

Today 29 Dec San Francisco Bay Shoreline

Sunny. Highs in the upper 50s. Northeast Winds 10 to 20 Mph. Becoming 5 to 10 Mph in the afternoon.

Tonight 29 Dec San Francisco Bay Shoreline

Mostly clear. Lows in the upper 30s to mid 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

San Bruno Temperature Statistics

December Temperature

San Francisco, San Francisco International Airport (2.5 miles)

  • Lowest 15 December, 2025

    44.1 °F

  • Average December

    52.6 °F

  • Highest 19 December, 2025

    64 °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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