About Bainbridge Island, WA's Climate & Weather History

With a population of around 23,800, Bainbridge Island sits in Washington, United States. The city operates in the Pacific Time Zone.

In 2025, Bainbridge Island recorded an average annual temperature of 53°F. The hottest temperatures reached 94°F in July; the coolest were 25°F in February. Total precipitation for the year was 44 inches, with the wettest month being December. Snowfall for the year totaled approximately 4 inches.