Chateau Boswell Winery is in St Helena, CA, in the St. Helena wine region. Phone: (707) 963-5472. Confirm hours before visiting — winery schedules vary seasonally.
Chateau Boswell Winery was established in 1979, giving the estate 47 years to develop its wine program and farming practices.
The winemaking at Chateau Boswell Winery is led by Allison Nunnikhoven. Visiting during special events or release weekends is often the best chance to meet the winemaking team and ask questions about specific vintages or techniques.
Chateau Boswell Winery offers: Private Estate Experience. Seated or guided experiences typically include more context about the wines and the estate's approach — worth booking if you want depth over breadth.
Monday: Closed | Tuesday: 10:00 AM – 4:00 PM | Wednesday: 10:00 AM – 4:00 PM | Thursday: 10:00 AM – 4:00 PM | Friday: 10:00 AM – 4:00 PM | Saturday: 10:00 AM – 4:00 PM | Sunday: Closed Hours may vary seasonally — confirm by phone or on their website before visiting.
