Map of Lac des Cœurs

Lac des Cœurs

48.7139° N, 69.9613° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac des Cœurs covers 4.4 km², making it larger than 90% of the 29,407 lakes in Quebec. It lies 47 km northwest of Rivière-Sainte-Marguerite.

Area
4.4 km²
larger than 90% of the 29,407 lakes in Quebec
Shoreline
22.8 km
longer than 89% of the 29,407 lakes in Quebec
Water clarity
3.6 mSecchi depth, 2024
less clear than 54% of the 805 monitored lakes in Quebec
Elevation
495 m

Today on the water

7.3 °C

Wind WSW 5 km/h

Observed at Escoumins, as of 5:00 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
Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hSW 15W 20W 20W 20W 20W 20NW 30NW 30
Gusts km/h40404040405050
Waves (est.) m0.10.20.20.20.2
Temp. °C67997666
Precip. %0030300000

Today: A mix of sun and cloud. 30 percent chance of showers this afternoon. Wind becoming west 20 km/h gusting to 40 this morning. High 10. UV index 3 or moderate.

Weather: Escoumins (local forecast), as of 5:03 a.m. EDT

Sun and moon

Civil dawn
6:19 a.m.
Sunrise
6:51 a.m.
Sunset
6:02 p.m.
Civil dusk
6:33 p.m.
Moonrise
5:40 a.m.
Moonset
5:20 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.

Water

Trophic status from the latest monitoring: mesotrophic.

Clarity was measured with a Secchi disk in 14 years between 2004 and 2024; the latest annual mean is 3.6 m.

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