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

Can you expect sunny skies in Napa in December? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

The month of December in Napa typically includes moderate temperatures and high rainfall. December is part of winter. Throughout the daytime, temperatures often hover around 14°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate 4°C. The temperatures in December are often the mildest compared to the rest of the year.

Precipitation

Napa in December usually receives high rainfall, averaging around 120 mm for the month. Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. The climate data from previous years indicates that there are typically about 11 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 Napa. April, May, June, July, August, September and October typically offer the most agreeable circumstances. On the other hand, February and December tend to be characterized by conditions that may not be as optimal.

Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.

 

Napa, monthly averages in December

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 37%  
PrecipitationPrecipitation 120 mm  
Rainy daysRainy days 11 days  
SunshineSunshine 160 hours *  
Percentage SunshinePercentage Sunshine 55% *  
Data from: Healdsburg, the United States of America (61 KM, 38 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.

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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 Napa.

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.