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Yountville

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Yountville Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Yountville year round climate

  • Spring (March–May): Average 11–15°C, mild and comfortable climate, rainfall gradually decreases. March and April still have some rainfall, while May is relatively dry. Common activities: Wine tasting in Napa Valley, cycling through vineyards, enjoying outdoor picnics. Recommended clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): Average 17–19°C, dry and warm weather, abundant sunshine, very little rainfall. Common activities: Swimming, hiking, dining at Napa Valley restaurants, attending local festivals. Recommended clothing: Light and breathable clothing, hat, sunglasses, sunscreen.
  • Autumn (September–November): Average 11–17°C, pleasant climate, larger temperature difference between morning and evening, September and October are relatively dry, rainfall increases in November. Common activities: Hot air balloon rides, wine harvest experiences, enjoying the autumn scenery in Napa Valley. Recommended clothing: Light jacket or cardigan, long-sleeved shirts, comfortable shoes.
  • Winter (December–February): Average 9–10°C, cold and humid weather, more rainfall, December has the most rainfall. Common activities: Wine tasting in comfortable indoor spaces, visiting museums or galleries, enjoying cozy restaurant experiences. Recommended clothing: Warm coat, sweater, scarf, hat, waterproof jacket.

Yountville climatological average

Annual average temperature: approx. 14°C / Annual rainfall: approx. 791 mm / Summer humidity: 40%–50% / Rainiest month: December

Yountville monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
9.8°C
183.5
February
9.5°C
88.4
March
11°C
121.5
April
13°C
40.2
May
15.4°C
14.3
June
17.9°C
5.1
July
18.8°C
0.1
August
19.5°C
0.6
September
18.8°C
18.4
October
16.6°C
7.4
November
11.2°C
108
December
9.7°C
203.8

Yountville weather for the next seven days

3/30
Monday
Sunny
29.9°C/10°C
3/31
Tuesday
Thundery outbreaks in nearby
14.7°C/9.9°C
4/1
Wednesday
Heavy rain
13.5°C/8.2°C
4/2
Thursday
Patchy rain nearby
16.9°C/6°C
4/3
Friday
Sunny
21.1°C/5.3°C
4/4
Saturday
Sunny
24.5°C/6.4°C
4/5
Sunday
Sunny
25.8°C/8.9°C

Yountville Frequently Asked Questions and Useful Information for Travel

What is the best time to visit?

The best time to visit is spring and autumn, with hiking in the summer and skiing in the winter.

What are the must-see attractions?

Must-see attractions include the Underground City and the Spiral Shaft. The underground city was where people lived 2,500 years ago, and the spiral well is a 53-meter-deep well built by the Pope when he took refuge.