The best time to visit Sonoma is between June and October when the weather is at its finest; high temps hover in the mid-80s in June and drop into the upper 70s in the second half of October.

U.S. News Insider Tip: Many hotels outside of downtown Sonoma, such as the Fairmont Sonoma Mission Inn & Spa, offer a free shuttle right into the Plaza. This way, you can skip both driving after ...