Yountville Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Yountville year round climate
Spring (March–May): Average 51–59°F, 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 62–66°F, 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 51–62°F, 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 48–50°F, 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. 57.2°F / Annual rainfall: approx. 791 mm / Summer humidity: 40%–50% / Rainiest month: December
Yountville monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
49.6°F
183.5
February
49.1°F
88.4
March
51.8°F
121.5
April
55.4°F
40.2
May
59.7°F
14.3
June
64.2°F
5.1
July
65.8°F
0.1
August
67.1°F
0.6
September
65.8°F
18.4
October
61.9°F
7.4
November
52.2°F
108
December
49.5°F
203.8
Yountville weather for the next seven days
3/29
Sunday
Sunny
91°F/59.7°F
3/30
Monday
Partly Cloudy
77.4°F/50.7°F
3/31
Tuesday
Mist
62.6°F/50°F
4/1
Wednesday
Heavy rain
56.3°F/51.6°F
4/2
Thursday
Patchy rain nearby
64.7°F/37.4°F
4/3
Friday
Sunny
73°F/41.6°F
4/4
Saturday
Sunny
79.1°F/46.6°F
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