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

What can you expect from the weather in Sonoma during January? Here's what the weather might have in store during this month.

In January, Sonoma typically experiences moderate temperatures and high rainfall. January is a winter month. Anticipate daytime temperatures around 15°C, while night temperatures can drop to 4°C.

Sonoma in January usually receives high rainfall, averaging around 105 mm for the month. Based on our climate data of the past 30 years, about 9 days of rain are anticipated.

The city usually sees around 190 hours of sunlight, indicating many sunny days.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Sonoma. 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 Sonoma climate page with graphs.

 

Sonoma, monthly averages in January

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 15°C  
Chance of RainChance of Rain 30%  
PrecipitationPrecipitation 105 mm  
Rainy daysRainy days 9 days  
SunshineSunshine 190 hours *  
Percentage SunshinePercentage Sunshine 60% *  
* Data from: Healdsburg, the United States of America (50 KM, 31 Miles).

Where to go in the United States of America in January

Find out more about the weather in the United States of America in January 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 January?

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 January.

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.