Winnewana Lake
Washtenaw County, Michigan282 acresView mapDirections
No nutrient or algae sampling on record from EGLE for this lake.
- 8 ft max depth
- Public access
Winnewana Lake in Washtenaw County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 8 ft. Surface area: 281.9 acres.
Water clarity at Winnewana Lake
Moderate clarity. Across summers from 2018 to 2023, Winnewana Lake averaged 2.17 m (7 ft) of visibility down into the water, so visibility is middling in midsummer, which is ordinary for a productive inland lake.
Nobody has taken a water sample here that we can find. Michigan's environmental agency measures clarity on lakes like this one from satellite images instead, which is why this page reports how clear the water is and no phosphorus or algae readings.
Clear is not the same as clean. A lake can be easy to see through and still carry high nutrient levels, and a naturally tea-stained lake can be perfectly healthy. The nutrient and algae readings on other lakes come from phosphorus and chlorophyll-a measured in a laboratory, and clarity alone cannot stand in for them.
The same satellite images put summer algae here at roughly 9.22 micrograms per litre. Estimating algae from orbit is far less exact than measuring clarity, so that figure is worth knowing and is not part of any rating.
Winnewana Lake is a 282-acre lake in Washtenaw County, Michigan with a maximum depth of 8 feet (8-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE. Methodology: how these readings are compared.
What Winnewana Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Winnewana Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Winnewana Lake
These are the measurements EGLE publishes for Winnewana Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Winnewana Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
8 ft
Average depth
8 ft
Surface area
282 acres
Shoreline
1.6 mi
Public access
Yes
Listed by EGLE
Recreation & Access
- Lake WinnewanaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Winnewana Lake
Compare lakeside cabins, hotels, and vacation rentals near Winnewana Lake in Washtenaw County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Winnewana Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Follow Winnewana Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Winnewana Lake
Nearby Lakes in Washtenaw County
Frequently asked questions about Winnewana Lake
Where is Winnewana Lake?
- Winnewana Lake is a lake in Washtenaw County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Winnewana Lake?
- Winnewana Lake in Washtenaw County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 8 ft. Surface area: 281.9 acres.
Is Winnewana Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Winnewana Lake?
- Winnewana Lake has a maximum depth of 8 feet and an average depth of 8 feet. The lake covers 281.9 acres.
Are there boat ramps on Winnewana Lake?
- Winnewana Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Winnewana. Public access is listed as yes.
Can I fish at Winnewana Lake?
- Winnewana Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
Explore Winnewana Lake across LakeQuality
Fish species and the cleanest lakes across Michigan
Fish species and best lakes in Washtenaw County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its readings
Michigan's cleanest lakes, ranked on agency measurements
More lakes in Michigan
Other Lakes in Michigan
Where this data comes from
Measurements for Winnewana Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory