Seattle, Washington, experiences a temperate maritime climate due to the influence of the Pacific Ocean.

The Pacific Ocean plays a key role in moderating Seattle's climate, keeping temperatures mild year-round. The ocean absorbs heat during the summer and releases it during the winter, preventing extreme temperature variations. This results in relatively cool summers and mild winters. Additionally, the Pacific Ocean brings moisture to the region, contributing to the frequent rain Seattle experiences, especially in the winter months. This combination of mild temperatures and consistent rainfall gives Seattle its characteristic temperate maritime climate, distinct from other inland areas.