About Gasworks Park Marina
LOCATION Gas Works Park Marina is located on the east side of the City of Seattle's Gas Works Park on north Lake Union. THE PUMPOUT IS LOCATED AT: Latitude 47* 38' 49.1" N Longitude 122* 19' 57.44" W PUMPOUT FACILITY INFORMATION Private marina with a stationary pumpout available to the public Open year round, 24 hours a day Located near shore MARINE SERVICES Full range of marine services are available all around Lake Union DAY-USE & CAMPGROUND ACCOMMODATIONS Gas Works Park, adjacent to the marina, is a day-use park with restrooms, picnic tables and open space

Facilities
COORDINATES
47.64657 N, -122.33226 E
Port Information
Telephone
Manoeuvrability
Good
Channel Marking
Excellent
Port of Entry
No
Overseas Visitor Berths
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Mon
5AM - 9AM
20 July 2026
- N 2 knots increasing to 7 knots.
- Increasing from 15 to 18°C
- Cloudy
Mon
9AM - 1PM
20 July 2026
- N 6–8 knots.
- Increasing from 18 to 23°C
- Calm sea
- UV Index: 6 - High
- Cloudy
Mon
1PM - 5PM
20 July 2026
- NW 7 knots decreasing to 3 knots.
- Increasing from 23 to 27°C
- Calm sea
- UV Index: 4 - Moderate
- Cloudy