San Ysidro District

The San Ysidro District received its designation as an AVA in 1990. Sitting on 2,340 acres in the foothills of the Diablo Mountain Range, the region is located in Santa Clara County. The soil in San Ysidro is made up of sandy loam and clay and is known for its good drainage. The region receives day long sunshine with daily temperatures often above 90 degrees during peak growing season. The valley is cooled in the evenings by maritime winds that blow through the Pajaro River Gap connecting Santa Clara to Monterey. There are no wineries operating in the San Ysidro District, but the region features vineyards that supply Santa Clara Valley producers with fruit. The region mostly produces Chardonnay and Merlot.