About Big Bay Harbor of Refuge
Big Bay Harbor of Refuge offers a range of services for boaters and visitors. These include: Mooring Facilities: The harbor has a 275-foot-long mooring bulkhead with 10 slips available for seasonal and transient boaters. Each slip is equipped with water and power hookups. Fuel and Sewage Services: Fuel stations and sewage pumping facilities are available. Restrooms and Showers: Clean restroom and shower facilities are provided for slip renters. Boat Launch: A boat launch and parking lot are open for day-use boaters. Harbormaster Assistance: The Harbor Host is available for assistance. The harbor is located on Lake Superior, just half a mile north of the town of Big Bay, Michigan

Facilities
COORDINATES
46.82778 N, -87.72644 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Fair
Channel Marking
Fair
VHF Channel
16,82
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Tidal Flow
Nil
Active Winter
Yes
Weather Forecast
Mon
9AM - 1PM
20 July 2026
- SW 8–15 knots. Gusts up to 25 knots.
- Increasing from 26 to 30°C
- S 0.5m at 3s period
- Mostly fine
Mon
1PM - 5PM
20 July 2026
- W 13 knots decreasing to 6 knots. Gusts up to 24 knots.
- Decreasing from 28 to 25°C
- SW 0.5m at 3s period
- UV Index: 5 - Moderate
- Chance of showers
Mon
5PM - 9PM
20 July 2026
- SW 5–9 knots. Gusts up to 18 knots.
- 22 to 27°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers