Average weather in December in San Francisco (California), United States of America
The average minimum temperature (usually the minimum temperature is noted during the night) in San Francisco in December is 8.4°C (47.12°F).
The amount of rain in December is high with an average of 122mm (4.8in).
This makes it the wettest month of the year.
It rains on average a total of 12 days.
The average maximum daytime temperature lies around 14.3°C (57.74°F).
The sun will occasionally show itself with 160 hours of sunshine during the whole month.
So what to wear in December? Visitors traveling to San Francisco should plan on bringing a totally waterproof rain jacket since it will often be raining. Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. With a water temperature of around 13.0°C (55.4°F), there is no need to bring your swimwear.
No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.
For other monthly average weather and what to do in December look at the numbers below.
Monthly Averages in December
Show in Fahrenheit
Where to stay in San Francisco
Where to go in United States of America in DecemberFind out more about the weather in United States of America in December and which places have the best weather conditions in this month.
What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Weather Forecasts for San Francisco (California)
Patchy rain possible
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in San Francisco.
Our site offers climate and forecast data for almost all countries in the world. Are you going to United States of America? On this website you can find historical weather averages for many cities in United States of America. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.