The California Current cools the West Coast by bringing cold Pacific waters southward, moderating coastal temperatures and shaping the region’s climate.

The California Current, a cold Pacific Ocean current, flows southward along the western coast of North America, significantly cooling the West Coast climate. This current lowers ocean and air temperatures along the coast, leading to mild summers and the dry, stable climate typical of California and nearby regions. Its cooling effect also creates ideal conditions for coastal fog, especially in areas like San Francisco. This foggy, cool coastal climate supports unique ecosystems and influences vegetation, such as the dense coastal forests. Overall, the California Current plays a crucial role in shaping the climate and biodiversity of the West Coast.