--°F
Data Unavailable
Updated 17 mins ago
Source Fallback

About Napa Valley Weather

Napa Valley enjoys a Mediterranean climate characterized by warm, dry summers and mild, wet winters. This climate is ideal for wine grape production and contributes to the region's world-renowned wine industry.

Seasonal Averages

Spring (Mar-May)

High: 68°F | Low: 45°F

Bud break and flowering in vineyards

Summer (Jun-Aug)

High: 82°F | Low: 52°F

Dry season with morning fog

Fall (Sep-Nov)

High: 76°F | Low: 48°F

Harvest season begins

Winter (Dec-Feb)

High: 57°F | Low: 38°F

Rainy season, vineyard dormancy

Weather Resources