Alki Beach Park

Seattle, Washington

Alki Bath House is now part of the Alki Community Center and serves as a public art studio for making and displaying local art.

Long, popular beach park at Alki Point in West Seattle.

Sandy beach with beach volley ball courts, fire pits, statues, monuments, nearby restaurants.

There is roadside parking and beach access along the entire length of the beach.

Water Quality
  • Passed water quality tests 60-95% of the time

  • Historical Status
  • This status is based on the latest sample, taken on September 4th, 2019. Puget Soundkeeper Alliance updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on September 4th, 2019 at 10:23 AM.
For water quality icon legend, click:  
Current Weather
7°C
A few clouds
Monitoring Frequency

Alki Beach Park is sampled weekly from May 26th from September 1st.

Source Information

The Washington Department of Ecology BEACH program tests water quality at salt water swimming beaches every week from Memorial Day to Labor Day for enterococcus bacteria. During the sampling period, Puget Soundkeeper regularly updates the Swim Guide to reflect the most current information. The saltwater swimming criteria are in two parts:

The geometric mean* should not exceed 30 enterococci/100 mL, based on results from a minimum of five weekly samples and a maximum of 12 weekly samples. The statistical threshold value* should not exceed 110 enterococci/100 mL, based on results from a minimum of five weekly samples and a maximum of 12 weekly samples. If either of these criteria is exceeded, a beach advisory should be issued at the beach.To protect swimmers' health, BEACH also uses a Beach Action Value. If enterococcus levels exceed 104 enterococci/100 mL, a beach advisory is issued.A beach is marked green if it meets all of the above criteria.A beach is marked red if it exceeds any one of the above criteria. A beach is marked grey if no current data is available. Sample results are also shared on the Department of Ecology BEACH program website: https://fortress.wa.gov/ecy/coastalatlas/Tools/BeachClosure.aspx More information about sampling protocols is available here: http://www.ecy.wa.gov/programs/eap/beach/program.html* The geometric mean and statistical threshold value concentrations are based on the arithmetic average of the three samples collected at a single beach for the day

Water Quality Graph

Alki Beach Park

Seattle, Washington

Water Quality
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on September 4th, 2019. Puget Soundkeeper Alliance updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on September 4th, 2019 at 10:23 AM.
For water quality icon legend, click:  
Current Weather
7°C
A few clouds

Alki Bath House is now part of the Alki Community Center and serves as a public art studio for making and displaying local art.

Long, popular beach park at Alki Point in West Seattle.

Sandy beach with beach volley ball courts, fire pits, statues, monuments, nearby restaurants.

There is roadside parking and beach access along the entire length of the beach.

Monitoring Frequency

Alki Beach Park is sampled weekly from May 26th from September 1st.

Source Information

The Washington Department of Ecology BEACH program tests water quality at salt water swimming beaches every week from Memorial Day to Labor Day for enterococcus bacteria. During the sampling period, Puget Soundkeeper regularly updates the Swim Guide to reflect the most current information. The saltwater swimming criteria are in two parts:

The geometric mean* should not exceed 30 enterococci/100 mL, based on results from a minimum of five weekly samples and a maximum of 12 weekly samples. The statistical threshold value* should not exceed 110 enterococci/100 mL, based on results from a minimum of five weekly samples and a maximum of 12 weekly samples. If either of these criteria is exceeded, a beach advisory should be issued at the beach.To protect swimmers' health, BEACH also uses a Beach Action Value. If enterococcus levels exceed 104 enterococci/100 mL, a beach advisory is issued.A beach is marked green if it meets all of the above criteria.A beach is marked red if it exceeds any one of the above criteria. A beach is marked grey if no current data is available. Sample results are also shared on the Department of Ecology BEACH program website: https://fortress.wa.gov/ecy/coastalatlas/Tools/BeachClosure.aspx More information about sampling protocols is available here: http://www.ecy.wa.gov/programs/eap/beach/program.html* The geometric mean and statistical threshold value concentrations are based on the arithmetic average of the three samples collected at a single beach for the day

Water Quality Graph

  Beach Location Water Quality
Seattle, Washington
Seattle,, Washington
Seattle, Washington
Seattle, Washington
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* The RBC Foundation

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