San Francisco

Avg weather in December
    View live forecast
    11 Hrsper day
    54 mmper month
    69 %avg
    5 Mphavg
    San Francisco

    San Francisco weather December

    What’s the weather like in San Francisco in December?

    The climate in San Francisco in December is quite wet since rainy season has just begun. However, temperatures are quite mild and perfect for sightseeing and shopping without it being too hot.

    Geographical influences

    San Francisco weather in December is influenced by the region’s unique microclimate. This means that the weather fluctuates depending on where you are in the city. December is usually very damp and cold with temperatures plummeting to lows of 8°C at night. The city is located on top of a peninsula on the northwest coast of California and known for its iconic landmarks including the Golden Gate Bridge and the abandoned prison on Alcatraz Island.


    December has an average temperature of 14°C, which is quite mild but it’s usually colder at night so make sure to bring a jacket out with you in the evening. Humidity levels are around 71% with winds racing along at 7mph. Each day has nine hours of sunshine and there’s an average rainfall of 106mm. This means it’s likely to rain during your stay since the rainfall spreads over ten days of the month.

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