Map of Lac des Abénaquis with depth contours

Lac des Abénaquis

46.1657° N, 70.3616° W

Depth contours from the 1980 government survey. Not for navigation.

Download the depth map (SVG)

Lac des Abénaquis is 4.2 m deep at its deepest point, shallower than 94% of the 1,506 surveyed lakes in Quebec. It covers 1.21 km² and lies 2.1 km east of Quatre-Chemins.

Maximum depth
4.2 msurveyed 1980
shallower than 94% of the 1,506 surveyed lakes in Quebec
Area
1.21 km²
larger than 77% of the 29,407 lakes in Quebec
Shoreline
5.9 km
longer than 66% of the 29,407 lakes in Quebec
Water clarity
0.9 mSecchi depth, 2025
less clear than 99% of the 805 monitored lakes in Quebec
Elevation
431 m

Today on the water

YELLOW ADVISORY - FROST · issued 4:39 a.m. EDT
Temperatures will drop to near the freezing mark overnight tonight.

Take preventative measures to protect cold-sensitive plants, trees, and crops.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

Official alert on weather.gc.ca · expires 8:39 p.m. EDT

7.4 °C

Wind SW 3 km/h

Observed at Saint-Georges, as of 7:00 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
Time8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.
Wind km/hW 10W 20W 20W 20W 20W 20W 20W 20
Gusts km/h40404040404040
Waves (est.) m0.10.20.20.2
Temp. °C881196420
Precip. %404040400000

Today: Mainly cloudy with 40 percent chance of showers. Wind becoming west 20 km/h gusting to 40 this morning. High 11. UV index 3 or moderate.

Weather: Saint-Georges (local forecast), as of 7:02 a.m. EDT

Sun and moon

Civil dawn
6:20 a.m.
Sunrise
6:50 a.m.
Sunset
6:06 p.m.
Civil dusk
6:36 p.m.
Moonrise
5:40 a.m.
Moonset
5:24 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

24% of Lac des Abénaquis is shallower than 1 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 1980 records a maximum depth of 4.2 m, drawn from 6 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: hypereutrophic.

Clarity was measured with a Secchi disk in 15 years between 2006 and 2025; the latest annual mean is 0.9 m.

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