About Thunderbird Marina
Thunderbird Marina has been in the same location on Lake Union since the 1920’s. Thunderbird Marina, with its Lake Union location and easy access to major highways, the Ballard Locks and Lake Washington, has been a prime location for boaters for nearly a century. This means the Marina was in operation when Gas Works Park, was a gasification plant. The Marina predates the Space Needle by 40 years! Over the decades the Marina has seen growth and continual improvements such as, new docks, new electrical, grated decking, dock boxes, covered moorage, secure access, and video monitoring.*No Liveaboards, charters, houseboats or Airbnb

Installations
COORDINATES
47.64834 N, -122.32594 E
Port Information
Téléphone
Berth Sizes
< 10m, 10-20m
Manœuvrabilité
Good
Channel Marking
Excellent
Port d'entrée
No
Overseas Visitor Berths
No
Type de quai
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Wed
5AM - 9AM
11 February 2026
- N 3–7 knots.
- 3 to 6°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy
Wed
9AM - 1PM
11 February 2026
- N 4 knots increasing to 6 knots.
- Increasing from 4 to 9°C
- Calm sea
- UV Index: 1 - Low
- Mostly fine
Wed
1PM - 5PM
11 February 2026
- N 6 knots decreasing to 4 knots.
- 6 to 10°C
- Calm sea
- UV Index: 0 - Low
- Mostly fine