Map of Lac Noir with depth contours

Lac Noir

47.898° N, 70.4199° W

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

Download the depth map (SVG)

Lac Noir is 14.6 m deep at its deepest point, shallower than 57% of the 1,506 surveyed lakes in Quebec. It covers 0.61 km² and lies 26 km northwest of Clermont.

Maximum depth
14.6 msurveyed 1981
shallower than 57% of the 1,506 surveyed lakes in Quebec
Area
0.61 km²
larger than 66% of the 29,407 lakes in Quebec
Shoreline
5 km
longer than 61% of the 29,407 lakes in Quebec
Water clarity
3.3 mSecchi depth, 2025
less clear than 60% of the 805 monitored lakes in Quebec
Elevation
385 m

Today on the water

8 °C

Wind SW 24 km/h

Observed at La Malbaie, as of 6:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.
Wind km/hW 10W 20W 20W 20NW 20NW 20NW 20NW 20
Waves (est.) m0.10.20.20.20.1
Temp. °C781096444
Precip. %303030300000

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming west 20 km/h this morning. High 10. UV index 3 or moderate.

Weather: La Malbaie (local forecast), as of 6:03 a.m. EDT

Sun and moon

Civil dawn
6:21 a.m.
Sunrise
6:52 a.m.
Sunset
6:04 p.m.
Civil dusk
6:35 p.m.
Moonrise
5:41 a.m.
Moonset
5:22 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

35% of Lac Noir is shallower than 3 m, and 48% is deeper than 5 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 14.6 m, drawn from 24 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: oligotrophic.

Clarity was measured with a Secchi disk in 14 years between 2010 and 2025; the latest annual mean is 3.3 m.

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