About Safe Harbor Jefferson Beach
With direct access to Beautiful Lake St. Clair, Safe Harbor Jefferson Beach is your gateway to unlimited marine recreation and open-water boating. As a full-service marina with over 50 years of experience, we are one of Michigan's largest and most well-known marinas. Safe Harbor Jefferson Beach offers a total of 800 deepwater wells for both seasonal and transient boaters. Slips range in size from 18 ft. to 85 ft., with the capacity to accommodate vessels up to 135 ft. We also have many choices for winter boat storage along with a full service and maintenance department. Contact us today to join our boating community!

Facilities
COORDINATES
42.46939 N, -82.87603 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m, 20m+
Depth at MLW
3m+
Manoeuvrability
Good
Channel Marking
Excellent
VHF Channel
68
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Active Winter
Yes
Weather Forecast
Wed
5AM - 9AM
18 February 2026
- S 7 knots.
- 1 to 7°C
- Chance of showers
Wed
9AM - 1PM
18 February 2026
- SE 7 knots increasing to 9 knots. Gusts up to 18 knots.
- 0 to 9°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Wed
1PM - 5PM
18 February 2026
- E 5–9 knots.
- 3 to 6°C
- Calm sea
- UV Index: 0 - Low
- Cloudy