San Bruno weather in December (California, United States of America)
What kind of weather does December bring to San Bruno? Here's what you need to know about the weather for the month.
Temperatures
Typically, December in San Bruno includes moderate temperatures and high rainfall. During the day, temperatures can climb to about 14°C. At night, they may fall to a cooler 7°C. The temperatures in December are often the mildest compared to the rest of the year.
Precipitation
San Bruno in December usually receives high rainfall, averaging around 113 mm for the month. Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Typically around 13 days days of rainfall are expected.Average sunshine
The area enjoys a balanced 160 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit San Bruno. May, June, July, August, September and October typically offer the best circumstances. While December tends to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Bruno climate page with graphs.
San Bruno, monthly averages in December
Min Temperature
7°C
Max Temperature
14°C
Water Temperature
13°C *
Chance of Rain
43%
Precipitation
113 mm
Rainy days
13 days
Humidity
78% *
Windspeed
11 km/h *
Sunshine
160 hours *
Percentage Sunshine
54% *
Where to go in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
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. Bring a rain jacket in case it rains during your stay. With a water temperature of around 13°C there is no need to bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Bruno.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
