The Sonoma Valley Certified Farmers' Market has been serving the Sonoma Valley public with certified produce and selected “guest' vendor's products since 1985, and under the same management since 1987. Because of its astute and consistent Market Management, it has been often cited as ”the best market in Sonoma County.” The Sonoma Valley Certified Farmers Market takes place year-round. Friday morning from 9 a.m. to 12:30 p.m. Located in the Arnold Field parking lot: 241 West First Street, Sonoma