Map of Lac au Loup

Lac au Loup

45.924° N, 74.7315° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac au Loup covers 0.69 km², making it larger than 68% of the 29,407 lakes in Quebec. It lies 3.5 km southwest of Gray Valley.

Area
0.69 km²
larger than 68% of the 29,407 lakes in Quebec
Shoreline
5.8 km
longer than 65% of the 29,407 lakes in Quebec
Water clarity
5.5 mSecchi depth, 2025
clearer than 78% of the 805 monitored lakes in Quebec
Elevation
209 m

Today on the water

3.2 °C

Wind calm

Observed at Sainte-Agathe, as of 5:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.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/hW 10W 10W 20W 20W 10W 10NW 10NW 10
Waves (est.) m0.10.10.20.20.1
Temp. °C58997410
Precip. %404040400000

Today: A mix of sun and cloud with 40 percent chance of showers. Wind becoming west 20 km/h near noon. High 9. UV index 3 or moderate.

Weather: Sainte-Agathe (local forecast), as of 5:03 a.m. EDT

Sun and moon

Civil dawn
6:37 a.m.
Sunrise
7:07 a.m.
Sunset
6:23 p.m.
Civil dusk
6:53 p.m.
Moonrise
5:58 a.m.
Moonset
5:41 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: oligo-mesotrophic (transition).

Clarity was measured with a Secchi disk in 7 years between 2018 and 2025; the latest annual mean is 5.5 m.

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