Map of Lac Saint-Charles with depth contours

Lac Saint-Charles

46.78° N, 70.965° W

Depth contours from the 2013 government survey. Not for navigation.

Download the depth map (SVG)

Lac Saint-Charles is 1.9 m deep at its deepest point, shallower than 99% of the 1,506 surveyed lakes in Quebec. It covers 0.64 km² and lies 2.2 km southwest of Labrie.

Maximum depth
1.9 msurveyed 2013
shallower than 99% of the 1,506 surveyed lakes in Quebec
Area
0.64 km²
larger than 67% of the 29,407 lakes in Quebec
Shoreline
4.1 km
longer than 53% of the 29,407 lakes in Quebec
Water clarity
0.2 mSecchi depth, 2025
less clear than 100% of the 805 monitored lakes in Quebec
Elevation
93 m

Today on the water

YELLOW ADVISORY - FROST · issued 8:47 a.m. EDT
Temperatures will drop to near freezing overnight tonoght as well as overnight Saturday to Sunday.

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 12:47 a.m. EDT Saturday

8.2 °C

Mostly CloudyWind WSW 21 km/h

Observed at Québec, as of 10:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 11 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.8 a.m.
Wind km/hW 20W 20W 20W 20W 20W 20W 20W 15
Gusts km/h404040
Waves (est.) m0.10.10.10.10.1
Temp. °C9111063033
Precip. %30303000000

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming west 20 km/h gusting to 40 this morning. High 11. UV index 3 or moderate.

Weather: Québec (local forecast), as of 10:02 a.m. EDT

Sun and moon

Civil dawn
6:23 a.m.
Sunrise
6:53 a.m.
Sunset
6:07 p.m.
Civil dusk
6:38 p.m.
Moonrise
5:43 a.m.
Moonset
5:25 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

The government depth survey from 2013 records a maximum depth of 1.9 m, drawn from 10 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 8 years between 2004 and 2025; the latest annual mean is 0.2 m.

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

Photos

Lac Saint-Charles - Saint-Charles-de-Bellechasse 02
Photo: Gabriel Picard, CC BY-SA 4.0, via Wikimedia Commons
Route 279 lac Saint-Charles 2026
Photo: Gabriel Picard, CC BY-SA 4.0, via Wikimedia Commons