Map of Lac du Moulin

Lac du Moulin

45.5408° N, 73.3252° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac du Moulin covers 0.11 km², making it smaller than 94% of the 29,407 lakes in Quebec. It lies 1.9 km north of Saint-Bruno-de-Montarville.

Area
0.11 km²
smaller than 94% of the 29,407 lakes in Quebec
Shoreline
1.4 km
shorter than 99% of the 29,407 lakes in Quebec
Water clarity
3.8 mSecchi depth, 2025
clearer than 50% of the 805 monitored lakes in Quebec
Elevation
83 m

Today on the water

7.7 °C

ClearWind SSW 8 km/h

Observed at Saint-Basile Le Grand, as of 3:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 4 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time4 a.m.7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.
Wind km/hW 15W 15W 20W 20W 20W 20W 10W 10
Gusts km/h404040
Waves (est.) m0.10.10.10.10.1
Temp. °C991114131086
Precip. %400040404000

Tonight: Partly cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening. Wind west 20 km/h gusting to 40 becoming light this evening. Low 9.

Weather: Saint-Basile Le Grand (local forecast), as of 3:02 a.m. EDT

Sun and moon

Civil dawn
6:32 a.m.
Sunrise
7:01 a.m.
Sunset
6:18 p.m.
Civil dusk
6:48 p.m.
Moonrise
5:52 a.m.
Moonset
5:36 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 19 years between 2007 and 2025; the latest annual mean is 3.8 m.

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

Photos

Lac du Moulin en automne
Photo: Juliabazin, CC BY-SA 4.0, via Wikimedia Commons