The biggest thing keeping people away might be the winter weather, but winter in coastal California is not necessarily like winter in many places. It can get cold, but that's relative. In Sonoma County's main city, Santa Rosa, the average high temperature is 59 degrees, the low 39 degrees, for both December and January. These are the rainiest months with each averaging about six inches of precipitation.
So you can decide, is the chance of being wet and chilly worth the risk of having wineries to yourself? For me, any wine tasting trips I take to Napa Valley are usually on rainy Tuesdays in January. It's perfect!
|February in Dry Creek Valley|