Robert Mondavi Winery 7801 St. Helena Hwy Oakville, CA 94562 Phone: (888) 766-6328 Hours: 10:00 a.m. - 5:00 p.m. Tasting prices: $10 - $105 Robert Mondavi Winery Website: http://www.robertmondavi.com/ Email: info@robertmondaviwinery.com Posted in Oakville.