Map of Lac des Îles

Lac des Îles

48.7353° N, 67.7313° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac des Îles covers 0.32 km², making it larger than 50% of the 29,407 lakes in Quebec. It lies 1 km east of Lac-des-Îles.

Area
0.32 km²
larger than 50% of the 29,407 lakes in Quebec
Shoreline
3.3 km
shorter than 55% of the 29,407 lakes in Quebec
Water clarity
1.4 mSecchi depth, 2025
less clear than 95% of the 805 monitored lakes in Quebec
Elevation
119 m

Today on the water

8.6 °C

Partly CloudyWind SW 19 km/h

Observed at Matane, as of 4:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 5 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 30W 30W 30W 30W 30W 30W 30W 40
Gusts km/h5050505050505060
Waves (est.) m0.20.20.20.20.2
Temp. °C77778666
Precip. %00030300040

Tonight: A few showers ending near midnight then partly cloudy. Fog patches dissipating this evening. Wind becoming west 30 km/h gusting to 50 this evening. Temperature steady near 7.

Weather: Matane (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:10 a.m.
Sunrise
6:42 a.m.
Sunset
5:53 p.m.
Civil dusk
6:24 p.m.
Moonrise
5:30 a.m.
Moonset
5:11 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

Not for navigation. Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: meso-eutrophic (transition).

Clarity was measured with a Secchi disk in 3 years between 2023 and 2025; the latest annual mean is 1.4 m.

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