The climate along much of the Pacific Coast is Mediterranean, characterized by mild, wet winters and warm, dry summers.

The Mediterranean climate along the Pacific Coast stretches from California up through parts of Oregon and Washington. This climate type is defined by mild, rainy winters and hot, dry summers, making it ideal for agriculture such as wine production in California. The proximity of the ocean helps moderate temperatures, preventing extremes of heat or cold. This climate is well-suited to diverse ecosystems, including coastal forests, chaparral, and grasslands. The Mediterranean pattern is influenced by ocean currents, atmospheric conditions, and geographical features like mountains that impact precipitation.