San Francisco Weather in December

Average temperatures, rainfall and packing tips for San Francisco, United States in December

🌡️ Avg high
15°C
🌙 Avg low
9°C
🌧️ Rainfall
~139 mm
📊 Warmth rank
#12 of 12

December in San Francisco at a glance

December in San Francisco is typically mild, with average daytime highs around 15°C and nights near 9°C. It is usually the coldest month of the year in San Francisco.

December is one of the wetter months in San Francisco, with around 139 mm of rain - plan around showers.

What to pack for San Francisco in December

San Francisco - year at a glance

HighLow · December highlighted
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Is December a good time to visit San Francisco?

🧳 December is a workable time to visit San Francisco, with mild days - just pack accordingly.

If your dates are flexible, the most comfortable months in San Francisco are usually May, June, July, August, September and October.

Other months in San Francisco

December in other cities

← San Francisco weather tomorrow (live)

FAQ

How hot is San Francisco in December?

In December, San Francisco averages a daytime high of about 15°C and a night-time low of around 9°C, based on recent historical data. That makes it the coldest month of the year there.

Does it rain in San Francisco in December?

December is one of the wetter months in San Francisco, with around 139 mm of rain - plan around showers.

Is December a good time to visit San Francisco?

December is a workable time to visit San Francisco, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in San Francisco are usually May, June, July, August, September and October.