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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
1/2
Friday
Moderate rain
16.5°C/11°C
1/3
Saturday
Moderate rain
14.2°C/12.2°C
1/4
Sunday
Heavy rain
12.4°C/9.1°C
1/5
Monday
Heavy rain
10.5°C/8.5°C
1/6
Tuesday
Patchy rain nearby
13.9°C/9.7°C
1/7
Wednesday
Partly Cloudy
13.3°C/7°C
1/8
Thursday
Sunny
11.3°C/3.3°C
