Map of Denmark Lake with depth contours

Denmark Lake

49.3788° N, 93.6304° W

Depth contours from the 1981 government survey. Not for navigation.

Download the depth map (SVG)

Denmark Lake is 20 m deep at its deepest point, deeper than 60% of the 2,688 surveyed lakes in Ontario. It covers 4.75 km² and lies 20 km east of Whitefish Bay.

Maximum depth
20 msurveyed 1981
deeper than 60% of the 2,688 surveyed lakes in Ontario
Area
4.75 km²
larger than 91% of the 18,731 lakes in Ontario
Shoreline
26.2 km
longer than 91% of the 18,731 lakes in Ontario
Elevation
330 m

Today on the water

6.6 °C

Partly CloudyWind SSE 8 km/h

Observed at Sioux Narrows, as of 3:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 1 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Hourly forecast, next 24 hours
Time4 a.m.7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.
Wind km/hSE 10SE 10SE 10SE 20SE 20SE 20SE 20SE 15
Gusts km/h404040
Waves (est.) m0.10.10.10.2
Temp. °C4591214131413
Precip. %2020203030301010

Tonight: A few clouds. Wind northwest 20 km/h becoming light this evening. Low plus 4.

Weather: Sioux Narrows (local forecast), as of 3:02 a.m. CDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:26 a.m.
Sunset
6:36 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:20 a.m.
Moonset
5:55 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

28% of Denmark Lake is shallower than 3 m, and 28% is deeper than 10 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey from 1981 records a maximum depth of 20 m, drawn from 33 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.