About Spinnaker Bay Marina
Located on south Lake Washington Spinnaker Bay Marina provides easy access to Seattle and surrounding communities. The docks were rebuilt in 2003 making the marina one of the newest facilities on Lake Washington. The Marina consists of 47 slips, pump out station, ample secured parking plus guest parking, secured access to the docks, and on-site management. All slips are 30 feet in length with water and power available.
Facilities
Electricity
Water
SewageCOORDINATES
47.52102 N, -122.26085 E
Port Information
Berth Sizes
< 10m, 10-20m
Manoeuvrability
Good
Channel Marking
Excellent
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Fri
5AM - 9AM
06 February 2026
Light and variable.
3 to 8°C
Calm sea
UV Index: 0 - Low
Mostly fine
Fri
9AM - 1PM
06 February 2026
- S 4 knots.
- Increasing from 8 to 14°C
- Calm sea
- UV Index: 1 - Low
- Cloudy
Fri
1PM - 5PM
06 February 2026
- S 6 knots decreasing to 3 knots.
- 11 to 15°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy