Swimming Beach Bacteria Levels and Water Temperature

The following map depicts the locations of current swimming beach sampling stations in King County. To view the current bacteria and temperature data, either click on the map or select from the list of beaches. You can also view plots of bacteria data. Units of bacteria data are cfu/100mL. To view historical data and trends, visit our archived bacteria and temperature data page. Current beach closures, if any, are listed right hand column of this page and will appear as red dots on the map.

Fish Kill Information

Read about the recent three-spine stickleback deaths.

Swimmer's Itch Information

Visit Public Health -Seattle & King County  Swimmer's Itch Page to learn about swimmer's itch.

Current Beach Closures:

All sampled beaches are open.

We recommend avoiding contact with water from the following creeks: John's Creek, Juanita Creek, Ravenna Creek, Idylwood Creek, and Thornton Creek.