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

Planning a trip to Santa Rosa 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, Santa Rosa typically experiences moderate temperatures and high rainfall. December falls within the winter season. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 4°C. On average, December has the most moderate temperatures of the year.

Santa Rosa in December usually receives high rainfall, averaging around 145 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. Based on our climate data of the past 30 years, about 13 days of rain are anticipated.

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 TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 43%  
PrecipitationPrecipitation 145 mm  
Rainy daysRainy days 13 days  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage 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 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 Santa Rosa 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
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

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