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

Planning a trip to San Jose in December? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In December, San Jose generally has moderate temperatures and moderate rainfall. December is a winter month. Throughout the day, temperatures typically settle at around 15°C. But by evening, they drop to around 5°C. During this period, the city experiences its coolest temperatures annually.

San Jose in December usually receives moderate rainfall, averaging around 63 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Delving into the climate records from the past 30 years, one can predict that nearly 11 days of the month will see rainfall.

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 Jose. April, May, June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, January, February and December tend to be characterized by conditions that may not be as optimal.

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

 

San Jose, monthly averages in December

Min TemperatureMin Temperature 5°C  
Max TemperatureMax Temperature 15°C  
Chance of RainChance of Rain 37%  
PrecipitationPrecipitation 63 mm  
Rainy daysRainy days 11 days  
HumidityHumidity 78% *  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 54% *  
* Data from: San Francisco, the United States of America (53 KM, 32 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America in December and which places have the best weather conditions in this month.

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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 San Jose in December?

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.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Swimming
5/10
Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in San Jose.

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 climate conditions. Find out where to go with our weather planner.