Temperature in The Napa Valley in December

Daytime highs, nighttime lows and the warmest cities in the Napa Valley, the United States of America this December.

The Napa Valley, the United States of America, a region in the United States of America, typically experiences mild weather in December, with maximum daytime temperatures around 14°C (57°F) and nighttime temperatures around 4°C (39°F) in Napa. December is a winter month. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in the Napa Valley, the United States of America in December?

To get a sense of December's typical temperatures in the key spots of the Napa Valley, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit the Napa Valley, check out our the Napa Valley's climate page.

See also: the Napa Valley weather by month.

Best Places to Visit in the Napa Valley in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Napa Valley.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

See all December weather averages, cities and regions in the Napa Valley

The Napa Valley temperatures in December: frequently asked questions

How hot does it get in the Napa Valley, the United States of America in December?

Daytime temperatures in Napa typically peak at 14°C (57°F) in December, putting it in the moderate range.

How cold does it get at night in the Napa Valley, the United States of America in December?

Nighttime temperatures in Napa typically drop to around 4°C (39°F) in December.

How much sun does the Napa Valley, the United States of America get in December?

Most areas experience a moderate amount of sunshine, with approximately 160 hours of sunlight expected in Napa. This makes it neither too gloomy nor overly bright.

Interested in more climate information?

We have much more information about the climate in the Napa Valley.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed 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.

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