Cupertino weather in December (California, United States of America)

Is December a good time to explore Cupertino weather-wise? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

Typically, December in Cupertino includes moderate temperatures and moderate rainfall. Enjoy the winter season during this month. The temperature during the day can rise to approximately 15°C. At night, it falls to around 5°C. Expect the coolest temperatures of the year during December.

Precipitation

Cupertino in December usually receives moderate rainfall, averaging around 80 mm for the month. With frequent rain showers this month, having an umbrella on hand will keep you dry. Records from the past 30 years suggest that around 12 days will experience rain.

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 Cupertino. April, May, June, July, August, September and October typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.

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

 

Cupertino, monthly averages in December

Min Temperature 5°C  

Max Temperature 15°C  

Chance of Rain 40%  

Precipitation 80 mm  

Rainy days 12 days  

Humidity 78% *  

Sunshine 160 hours *  

Percentage Sunshine 54% *  

* Data from: San Francisco, the United States of America (45 KM, 28 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.

What To Do

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Cupertino.

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.