St. Helena is the northernmost Napa Valley floor AVA and is less influenced by cooling ocean breezes and fog tham Napa Valley’s more southern sub-AVAs. The valley also narrows near St. Helena increasing the radiated heat from the from the valley hillsides. This warmer climate often results in full-bodied, ripe, jammy wines with black currant, cassis, black licorice and cedar flavors. With its long stretch of Highway 29, St. Helena has more wineries than any other Napa sub-AVA. Scroll down to find St. Helena’s best wineries. The “Highest Visitor Ratings” section lists St. Helena wineries that have received visitors’ highest ratings for service, views, and wine quality. The “Highest Wine Critic Ratings” section lists the producers of St. Helena’s best wines based on awards won at international wine competitions and ratings from publications such as Wine Spectator, Wine Enthusiast, and The Wine Advocate. The “All St. Helena Wineries” section contains a comprehensive, and continuously updated, list of St. Helena wineries. Click “map view” to access the advanced winery search to find wineries that provide vineyard lodging, have food available to complement their wines, host vineyard weddings, or produce wines from organic grapes. We make it easy to find the best wine tour and tasting destinations in St. Helena wine country.