Napa / Sonoma, CA
Napa / Sonoma, CA Drive · approx. 1–1.5 h
- October
- 75°F / 46°F (24°C / 8°C)
- November
- 65°F / 40°F (18°C / 4°C)
- December
- 57°F / 38°F (14°C / 3°C)
Napa in October is the tail of harvest, with highs near 75°F and the valley turning gold. By December it is cooler and wetter, around 57°F, so October and early November are the best Q4 window.
Venue types for about 50–300 people: Winery or estate with private event space; Boutique hotel (smaller groups); Resort with conference space.
Harvest generally runs into October. Rain increases sharply from November, averaging about 6 inches in December.
Where you could stay
Carneros Resort and Spa
Napa / Sonoma, CA
Carneros Resort and Spa is the nearest wine-country base for a Bay Area group, on 28 acres with about 35,000 square feet of event space. Fireside dinners suit the cooler months.
Local planners for a sales kickoff here
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Quintana EventsSonoma, CA
Quintana Events is a Sonoma event planning and design company founded in 2007 and led by Alex Quintana, its owner and creative director. Its corporate team plans retreats, remote team offsites, incentive trips, executive retreats and leadership summits, client appreciation experiences, holiday parties, team building and employee recognition events, acting as "an extension of your internal team by managing logistics, budgets, and production." Its services include venue sourcing and contract negotiation, hotel room blocks, travel and transportation, agendas, food and beverage, AV and production management, registration and branded gifting. It also plans galas, store and product launches, fashion events and sales meetings, and says it has worked with "brands as big as Bloomingdale's" for groups of 50 to 500. With Wine Country as its home base, it says it specializes in "destination-worthy retreats while producing corporate experiences nationwide." It is also an award-winning Northern California wedding planner, named 2025 Best Wedding Planner Northern California by California Wedding Day Magazine.