The climate of SLO Wine Country is distinguished by a continual influence from the Pacific Ocean. Many of the vineyards lie within five miles from the shoreline, and the rare east-to-west orientation of the valleys brings a reliable cooling effect to the entire region.

Mornings are often marked by a thick marine layer or billowing fog. The skies typically clear by mid morning. By afternoon, the vines are often bathed in the warming sun. By evening, the cool marine breezes return in force, and the cycle begins anew.

These pronounced marine conditions create an extended ripening process, allowing the grapes to achieve full flavors while maintaining fine natural acidity and structure. The ocean proximity also exerts a moderating influence, so that temperatures are rarely hot or cold. Such steadiness brings added balance to the fruit and fosters consistent quality from year to year.

  • Much of the SLO Coast is classified as “Region 1,” a designation applied to the world’s coolest winegrowing areas
  • In the heart of SLO Wine Country, the average daily maximum temperature is 70 degrees, and even the warmest summer days are tempered by cooling marine breezes
  • The marine climate and moderate temperature swings foster a long, balanced growing season for a harmonious ripening of sugar, acid and tannin