Map of Lac Vert

Lac Vert

46.2578° N, 73.5354° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac Vert covers 0.15 km², making it smaller than 78% of the 29,407 lakes in Quebec. It lies 1.7 km southeast of Lac-Noir.

Area
0.15 km²
smaller than 78% of the 29,407 lakes in Quebec
Shoreline
1.8 km
shorter than 89% of the 29,407 lakes in Quebec
Water clarity
9.2 mSecchi depth, 2025
clearer than 98% of the 805 monitored lakes in Quebec
Elevation
213 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

7.5 °C

Wind SW 5 km/h

Observed at Joliette, as of 7:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 8 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 10W 10W 10NW 10
Gusts km/h404040
Waves (est.) m0.10.10.10.1
Temp. °C91113129640
Precip. %404040400000

Today: A mix of sun and cloud with 40 percent chance of showers. Risk of a thunderstorm this afternoon. Wind becoming west 20 km/h gusting to 40 this morning. High 13. UV index 3 or moderate.

Weather: Joliette (local forecast), as of 7:00 a.m. EDT

Sun and moon

Civil dawn
6:33 a.m.
Sunrise
7:03 a.m.
Sunset
6:18 p.m.
Civil dusk
6:48 p.m.
Moonrise
5:53 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: oligotrophic.

Clarity was measured with a Secchi disk in 14 years between 2012 and 2025; the latest annual mean is 9.2 m.

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