Suisun Valley AVA length. The valley is approximately by , and contains about . More than of the valley is currently planted as vineyard, with more than twenty varieties of wine grapes represented, including Barbera, Cabernet Sauvignon, Chardonnay, French Colombard, Gamay (Valdiguie), Grenache, Merlot, Mouvedre, Muscat Canelli, Petite Sirah, Petite Verdot, Pinot Gris, Pinot Noir, Primitivo, Rousanne, Sauvignon Blanc, Sangiovese, Shiraz, Syrah, Viognier, Riesling, and Zinfandel. Suisun Valley has a semi-coastal Mediterranean climate with a cool wet season from November to April, followed by a warm dry season. Moist winds blow inland from San Pablo Bay and Suisun Bay at the headwaters of
Tempranillo that Californian Tempranillo wine production began to flourish, following the establishment of suitably mountainous sites. Production in this area has more than doubled since 1993. During the 1990s, Tempranillo started experiencing a renaissance in wine production worldwide. This surge began partly as a result of the efforts of a 'new wave' of Spanish growers who showed that it was possible to produce wines of great character and quality in areas outside of the Rioja region. One result of this has been that Tempranillo varietal wines have become more common, especially in the better-suited, cooler Spanish regions like Ribera del Duero,