San Francisco Bay - Fort Mason Weather Forecast

    • 50
    • 52

    Mostly Cloudy

    • 50
    • 53

    Rain

    • 56
    • 57

    Rain

    • 52
    • 57

    Rain

    • 50
    • 53

    Rain Likely

    • 50
    • 54

    Rain Likely

Today 30 Dec San Francisco

Mostly cloudy. Highs in the 50s. Northeast Winds 10 to 15 Mph.

Tonight 30 Dec San Francisco

Mostly cloudy. A chance of rain after midnight. Lows in the mid 40s to lower 50s. Northeast Winds 5 to 15 Mph.

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San Francisco Bay - Fort Mason Temperature Statistics

December Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 13 December, 2025

    35.1 °F

  • Average December

    50.6 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    58.6 °F

  • Average High 2020–2025

    66.9 °F
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