Map of Lac Ouimet with depth contours

Lac Ouimet

46.1697° N, 74.5919° W

Depth contours from the 2011 government survey. Not for navigation.

Download the depth map (SVG)

Lac Ouimet is 23.4 m deep at its deepest point, deeper than 71% of the 1,506 surveyed lakes in Quebec. It covers 1.6 km² and lies beside Lac-Ouimet.

Maximum depth
23.4 msurveyed 2011
deeper than 71% of the 1,506 surveyed lakes in Quebec
Area
1.6 km²
larger than 81% of the 29,407 lakes in Quebec
Shoreline
6.4 km
longer than 68% of the 29,407 lakes in Quebec
Water clarity
4.4 mSecchi depth, 2025
clearer than 60% of the 805 monitored lakes in Quebec
Elevation
231 m

Today on the water

2 °C

Wind calm

Observed at Mont-Tremblant, as of 1:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m.

Hourly forecast, next 24 hours
Time2 a.m.5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.
Wind km/hW 10W 10W 10W 10W 20W 20W 10W 10
Waves (est.) m0.10.10.10.10.2
Temp. °C766810852
Precip. %60604040404000

Tonight: Partly cloudy with 60 percent chance of showers. Wind west 20 km/h becoming light this evening. Low 6.

Weather: Mont-Tremblant (local forecast), as of 1:01 a.m. EDT

Sun and moon

Civil dawn
6:37 a.m.
Sunrise
7:07 a.m.
Sunset
6:22 p.m.
Civil dusk
6:52 p.m.
Moonrise
5:58 a.m.
Moonset
5:41 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

49% of Lac Ouimet 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 2011 records a maximum depth of 23.4 m, drawn from 35 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: oligo-mesotrophic (transition).

Clarity was measured with a Secchi disk in 13 years between 2009 and 2025; the latest annual mean is 4.4 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)