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Yountville (CA) Weather and Climate: A Comprehensive Guide

Yountville experiences great temperature shifts. The city's weather can transition from very warm days to mild weather. It maintains moderate precipitation patterns. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

The climate in Yountville is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 32°C in July to a moderate 14°C in the coolest month, January.

Nights are cooler, with lows often dropping to around 3°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Yountville receives mid-range precipitation levels, with 660 mm annually. The climate in Yountville shows significant variation throughout the year. Expect high rainfall in December, with an average of 139 mm of precipitation over 12 rainy days.

In contrast, August offers drier and sunnier days, with around 0 mm of rainfall over 0 rainy days. For more details, please visit our Yountville Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Yountville serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.3 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Healdsburg, the United States of America (49 KM, 31 Miles).

Daily hours of sunshine

Data from: Healdsburg, the United States of America (49 KM, 31 Miles).

Forecast for Yountville (CA)

Sun   Dec 22
16°C | 11°C
S 3 m/s
6.1 mm
broken clouds and rain

broken clouds and rain

Mon   Dec 23
16°C | 12°C
E 4 m/s
overcast and no rain

overcast and no rain

Tue   Dec 24
15°C | 6°C
W 7 m/s
12 mm
partly cloudy and rain

partly cloudy and rain

The best time of year to visit Yountville in the United States of America

During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Yountville have a dry season?
    Yes, the months of May, June, July, August and September are very dry.
  • Which is the warmest month in Yountville?
    July has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Yountville?
    The coldest month is January with an average maximum temperature of 14°C.
  • Which is the wettest month in Yountville?
    December tops the wettest month list with 139 mm of rainfall.
  • Which is the driest month in Yountville?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Yountville?
    May is the sunniest month with an average of 310 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.