Map of Lac Kénogami with depth contours

Lac Kénogami

48.348° N, 71.5319° W

Depth contours from the 1969 government survey. Not for navigation.

Download the depth map (SVG)

Lac Kénogami is 103.2 m deep at its deepest point, deeper than 99% of the 1,506 surveyed lakes in Quebec. It covers 58.1 km² and lies beside Saint-Cyriac.

Maximum depth
103.2 msurveyed 1969
deeper than 99% of the 1,506 surveyed lakes in Quebec
Area
58.1 km²
larger than 99% of the 29,407 lakes in Quebec
Shoreline
255 km
longer than 99% of the 29,407 lakes in Quebec
Water clarity
2.1 mSecchi depth, 2025
less clear than 84% of the 805 monitored lakes in Quebec
Elevation
158 m

Today on the water

6.2 °C

Wind WNW 12 km/h

Observed at Saguenay, as of 5:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.4 m. Around 7 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 20W 20W 20W 20W 20W 20W 20W 20
Gusts km/h4040404040404040
Waves (est.) m0.40.40.40.4
Temp. °C56675433
Precip. %4040404040404040

Today: Mainly cloudy with 40 percent chance of showers. Wind west 20 km/h gusting to 40. High 7. UV index 3 or moderate.

Weather: Saguenay (local forecast), as of 6:05 a.m. EDT

Sun and moon

Civil dawn
6:25 a.m.
Sunrise
6:57 a.m.
Sunset
6:08 p.m.
Civil dusk
6:40 p.m.
Moonrise
5:46 a.m.
Moonset
5:26 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

12% of Lac Kénogami is deeper than 50 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 1969 records a maximum depth of 103.2 m, drawn from 130 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 Depths are from government surveys and may be outdated.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 20 years between 2004 and 2025; the latest annual mean is 2.1 m.

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

Photos

2016-09 Kenogami lake at night 01
Photo: 0x010C, CC BY-SA 4.0, via Wikimedia Commons
2016-09 Kenogami lake at night 02
Photo: 0x010C, CC BY-SA 4.0, via Wikimedia Commons
Crépuscule sur La Baie Moncouche - Lac Kénogami
Photo: Elyse Brassard, CC BY-SA 4.0, via Wikimedia Commons