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

Looking to travel to Sonoma in December? This guide provides all the details you need.

In December, Sonoma generally has 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.

Sonoma in December usually receives high rainfall, averaging around 134 mm for the month. Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Based on our climate data of the past 30 years, about 12 days of rain are anticipated.

The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sonoma. April, May, June, July, August, September and October typically offer the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

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

 

Sonoma, monthly averages in December

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 38%  
PrecipitationPrecipitation 134 mm  
Rainy daysRainy days 12 days  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 55% *  
* Data from: Healdsburg, the United States of America (50 KM, 31 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 Sonoma 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 Sonoma.

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.