The Breedekloof Wine Valley has a mediterranean climate with ± 980mm rainfall per year. Winters are cold with snow until late in spring. Temperatures during spring are low resulting in slower ripening. Harvest usually starts 2-3 weeks later than other wine areas. Significant temperature variation with warm days ensures good sugar development while the drop in temperature at night preserves the balance of natural acids in the grapes. The soil is defined by a major geological fault, the Worcester Fault, which runs through the valley. Hills are composed of weathered sandstone and the valley floor is sedimented by a diversity of soil parent materials.