Napa Valley Mustard Celebration (January–March). Annual season of art, food, and wine events coinciding with wild mustard blooming between vineyard rows throughout Napa Valley. Includes art shows and a finale festival. Recurring annually; 2027 season confirmed.
Wine Road Barrel Tasting Weekend (Northern Sonoma County) (Early March; e.g. March 1–2, 2025). Annual weekend event (now in its 40s by edition) across 100+ Sonoma County wineries in Russian River, Dry Creek, and Alexander Valleys. Visitors taste wines still aging in barrel and can purchase wine futures.
BottleRock Napa Valley (Late May (Memorial Day weekend); e.g. May 22–24, 2026). Annual three-day music, wine, food, and craft beer festival at Napa Valley Expo, City of Napa. Features 75+ bands across multiple stages.
Auction Napa Valley (First weekend of June; e.g. June 5–6, 2026). Annual charity wine auction organized by Napa Valley Vintners since 1981. Features vintner-hosted estate dinners, barrel auction, and live auction. Has raised over $245 million for local health and youth education…
Napa Valley Harvest Season (August–October). Annual grape harvest and crush season across Napa Valley wineries. Sparkling and white wine varieties harvested first (early August); Cabernet Sauvignon last (September–October). Wineries host harvest parties, grape…
Sonoma County Harvest Fair (October (typically second weekend); e.g. October 10–11, 2026). Annual celebration since 1975 at the Sonoma County Fairgrounds, Santa Rosa. Features a professional wine competition judging 900+ wines, World Championship Grape Stomp, artisan food and maker exhibits.