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
Thu
5PM - 9PM
26 February 2026
SW 8–12 knots. Gusts up to 23 knots.
5 to 8°C
SW 0.5m at 2s period
Mostly fine
Thu
9PM - 5AM
26 February 2026
- S 6–10 knots. Gusts up to 20 knots.
- 5 to 7°C
- Calm sea
UV Index: 0 - Low- Cloudy
Fri
5AM - 9AM
27 February 2026
- S 8 knots. Gusts up to 18 knots.
- 5 to 7°C
- Calm sea
- UV Index: 0 - Low
- Cloudy