About Trempealeau Marina
Located just above Lock & Dam 6, Trempealeau Marina (previously Sunset Bay Marina) is pleased to offer nearly 150 wet slips ranging from 20′-70′. Pricing starts at just $825 for the season and includes power, water, parking, and all of the amenities listed below. On-site winter boat storage is also available for our current slipholders. Since Spring 2016 we have updated the following items: Dock floats Relocation of new gas dock & pump New pump-out facility Updated clubhouse Harbor dredging Updated bathroom/shower room areas New picnic area with tables Duckweed-harvesting boat Full marina dredging All new finger docks & sizing for D-dock
Facilities
Electricity
PetrolDiesel
Water
Showers
Sewage
ToiletsCOORDINATES
44.00143 N, -91.43707 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m, 20m+
Depth at MLW
2 - 3m
Manoeuvrability
Good
Channel Marking
Fair
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Weather Forecast
Sun
5AM - 9AM
17 May 2026
NE 6–11 knots veering E 6-11 knots. Gusts up to 19 knots.
11°C
UV Index: 0 - Low
Cloudy
Sun
9AM - 1PM
17 May 2026
- E 8–11 knots. Gusts up to 18 knots.
- Increasing from 11 to 15°C
- UV Index: 2 - Low
- Cloudy
Sun
1PM - 5PM
17 May 2026
- E 9–12 knots. Gusts up to 19 knots.
- 13 to 22°C
- UV Index: 0 - Low
- Chance of showers