South San Francisco weather in December (California, United States of America)

What's the typical weather in South San Francisco for December? Here's what you need to know about the weather for the month.

Temperatures

Typically, December in South San Francisco includes moderate temperatures and high rainfall. Anticipate daytime highs near 14°C, and cooler nights with temperatures around 7°C. With moderate temperatures, December stands out as the chilliest month of the year.

Precipitation

South San Francisco in December usually receives high rainfall, averaging around 114 mm for the month. As the month with the most rain, you'll want to have an umbrella with you to manage the frequent showers. Expect around 13 days of rain based on historical data.

Average sunshine

The month brings about 160 hours of sunlight, offering a comfortable mix of sun and shade.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit South San Francisco. May, June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, December tends to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized South San Francisco climate page with graphs.

 

South San Francisco, monthly averages in December

Min Temperature 7°C  

Max Temperature 14°C  

Water Temperature 13°C *  

Chance of Rain 44%  

Precipitation 114 mm  

Rainy days 13 days  

Humidity 78% *  

Windspeed 11 km/h *  

Sunshine 160 hours *  

Percentage Sunshine 54% *  

Data from: San Francisco, the United States of America (4 KM, 2 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

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.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in South San Francisco.

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.