I'm not too familiar with Temecula Wineries, but I grow wine grapes in Ramona, Ca., that's in north east San Diego county, There are three AVA's, San Pasqual, Highland Valley and Ramona. I'm in the Highland Valley AVA (Or should be anyways). I used to grow in the San Pasqual Valley. There are a bunch of wineries that are starting to make good wines. If you are ever in San Diego, you should tour a few of the wineries, small, intimate and good wine.