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Photo: Port Sanilac Michigan aerial view by U.S. Army Corps of Engineers, photographer not specified or unknown (Public domain) License

Port Sanilac Municipal Harbor

Marina · Port Sanilac, Michigan

Good conditions todaycamping-nearbyWheelchair accessible entranceWheelchair accessible parking lot

Port Sanilac Harbor is a full-service public dockage facility with 33 seasonal slips and 35 transient slips. Open April 1st - October 31st. Please contact the office for accommodations after hours. Radio Channel 16 & 9. Amenities: water, electric (30 & 50 amp), restrooms, showers, rec 90 gasoline, diesel, pump out, ice, fish cleaning station, boat launch, courtesy vehicle, day-usage dockage, playground/park, grills/picnic pavilion, laundry, limited Wi-Fi, and marine supplies. The Port Sanilac Municipal Harbor is a premier destination for boaters on Lake Huron. The harbor staff and village are gracious hosts to each and every boater who visits Port Sanilac.

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Current water conditions

Water temp
74°F
23°C
Comfortable for a swim today. The water's in a comfortable range. Still check depth, currents, and the forecast, and follow any posted advisories before getting in.

Live data from NOAA buoy 45209 (22.2 mi away), as of Aug 20, 11:00 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Port Sanilac Municipal Harbor

H: 74° L: 66°
Sunny
Sunny
74°
|
Feels like 68°
Precipitation
6%
Humidity
54%
Wind
14 mph
UV Index
0.4
Water Conditions:
🏊Cool but swimmable
12 AM
Clear
72°
3 AM
Overcast
66°
6 AM
Overcast
71°
9 AM
Overcast
70°
12 PM
Sunny
72°
3 PM
Sunny
72°
6 PM
Sunny
74°
9 PM
Clear
72°

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Frequently asked questions

Where is Port Sanilac Municipal Harbor?
Port Sanilac Municipal Harbor is a marina in Port Sanilac, Michigan.
What is the water temperature at Port Sanilac Municipal Harbor?
As of August 20, 2026, the water temperature at Port Sanilac Municipal Harbor in Port Sanilac, Michigan is 74°F (23°C), measured by NOAA buoy 45209, 22.2 miles away.
Can you swim at Port Sanilac Municipal Harbor?
There is no fixed answer for Port Sanilac Municipal Harbor: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Port Sanilac Municipal Harbor in Port Sanilac, Michigan. Check current water conditions before you go, and follow posted signs and local guidance.
How is Port Sanilac Municipal Harbor rated?
Port Sanilac Municipal Harbor in Port Sanilac, Michigan has an average visitor rating of 4.8 out of 5, based on 157 reviews.
What amenities does Port Sanilac Municipal Harbor have?
Visitor-listed amenities at Port Sanilac Municipal Harbor include camping-nearby.

Visitor Reviews

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Best Times to Visit

👍
Right Now
Good conditions for visiting
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

7376 Main St, Port Sanilac, MI 48469

Port Sanilac, Michigan 48469

Popular Times

Monday
Morning
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Afternoon
12p
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Evening
6p
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8p
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Not busy
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People Talk About

💬 clean💬 beach💬 walk💬 town💬 playground💬 ice cream shop💬 scuba diving💬 festival💬 showers💬 boat launches

Accessibility

Wheelchair accessible entranceWheelchair accessible parking lot

Amenities

Camping nearby