Coffee Lake
Douglas County, Wisconsin · WBIC 2758800
The DNR lists this lake's watershed (Bois Brule River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
Size
11 acres
Max depth
31 ft
DNR lake type
Simple, Warm, dark water color
Water clarity
2.2 ft
Low, measured Jul 2010
A warm-water lake type: the DNR groups it with lakes that warm up through summer. This describes the lake type in general, not this lake in particular.
Outline
Drawn from the DNR's 24K hydrography (surveyed 1984), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
2.2 ft Secchi depthLowOlder reading
Last measured Jul 3, 2010. 16 readings on record, 2007 to 2010.
Nothing has been measured in the last 5 years, so this may not match the lake today.
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station Coffee Lake At Deep Hole. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 21 (Apr 15 to Apr 25)
- Surface reaches 48°Fabout Apr 25 (Apr 18 to Apr 29)
- Surface reaches 64°Fabout May 10 (May 5 to May 17)
- June surface73°F, usually 71 to 74°F
- July surface78°F, usually 77 to 80°F
- August surface74°F, usually 73 to 76°F
Forms a warm top layer around Apr 24, lasting about 175 days.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was not calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
More lakes in Douglas County
- Gander Lake0.3 miles away
- Lake Minnesuing1.1 miles away
- Sunfish Lake2.6 miles away
- Deer Lake2.6 miles away
- Whisky Lake2.7 miles away
- Lydon Lake3.0 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.