Santa Rosa weather in December (California, United States of America)

What should you pack for a trip to Santa Rosa in December? Our guide gives you the essential weather details for this month.

Temperatures

Typically, December in Santa Rosa includes moderate temperatures and high rainfall. During December, you’ll experience the winter season. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 4°C. The temperatures in December are typically the coolest of the year.

Precipitation

Santa Rosa in December usually receives high rainfall, averaging around 145 mm for the month. With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. The climate data from previous years indicates that there are typically about 13 days days of rain.

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 Santa Rosa. 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 Santa Rosa climate page with graphs.

 

Santa Rosa, monthly averages in December

Min Temperature 4°C  

Max Temperature 14°C  

Chance of Rain 43%  

Precipitation 145 mm  

Rainy days 13 days  

Sunshine 160 hours *  

Percentage Sunshine 55% *  

Data from: Healdsburg, the United States of America (23 KM, 14 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

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 Santa Rosa.

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.