The Santa Rita AVA is blessed with East- West valleys open to the Sea that pull cold air off the pacific, and by porous sea-bed calcium soils that produce layered, rich wines with remarkable mineral personality and freshness.
Coastal Valleys that are open to the Sea (with mountain ranges that run perpendicular and not parallel to the coastline) - enable cooling Marine Fogs to enter deep inland. This lowers summer temperatures and allows grapes to ripen slowly, resulting in bright acidity and more complex flavors.
Why does the Pacific Coast have Marine Fogs…
The “California current” brings deep cold water southward from Alaskan along the coast. From March to September, wind combined with the rotation of the earth create surface currents that move water from the coast out into the ocean - to fill its place, ice cold water from the deep ocean wells up to the surface - The “up-welling” of chilled water - hyper-chills the air above and so the water can not evaporate and condenses into Fog. And when Sun warms the land the air rises and pulls in cool Fog from cost into the Hills.