Lac Deschênes
47.9519° N, 70.0605° W
Depth contours from the 1977 government survey. Not for navigation.
Download the depth map (SVG)Lac Deschênes, Quebec. 47.9519° N, 70.0605° W
Maximum depth 30 m (1977 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-deschenes/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Géobase des bathymétries de lac du Québec (GBLQ), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- États trophiques des lacs (RSVL), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
Lac Deschênes is 30 m deep at its deepest point, deeper than 81% of the 1,506 surveyed lakes in Quebec. It covers 2.02 km² and lies 6.1 km south of Sagard.
- Maximum depth
- 30 msurveyed 1977
- deeper than 81% of the 1,506 surveyed lakes in Quebec
- Area
- 2.02 km²
- larger than 83% of the 29,407 lakes in Quebec
- Shoreline
- 13 km
- longer than 82% of the 29,407 lakes in Quebec
- Water clarity
- 5.5 mSecchi depth, 2024
- clearer than 78% of the 805 monitored lakes in Quebec
- Elevation
- 226 m
Today on the water
8.3 °C
Observed at Tadoussac, as of 7:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 8 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 8 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/h | W 20 | W 20 | W 20 | W 20 | W 20 | W 20 | W 20 | W 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |||
| Temp. °C | 5 | 6 | 6 | 7 | 4 | 4 | 3 | 3 |
| Precip. % | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
Today: Mainly cloudy with 40 percent chance of showers. Wind west 20 km/h gusting to 40. High 7. UV index 3 or moderate.
Weather: Tadoussac (local forecast), as of 7:00 a.m. EDT
Sun and moon
- Civil dawn
- 6:19 a.m.
- Sunrise
- 6:50 a.m.
- Sunset
- 6:03 p.m.
- Civil dusk
- 6:34 p.m.
- Moonrise
- 5:40 a.m.
- Moonset
- 5:21 p.m.
- Moon
- Waning crescent, 1% lit
Depth
20% of Lac Deschênes is shallower than 3 m, and 60% is deeper than 10 m.
How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).
The government depth survey from 1977 records a maximum depth of 30 m, drawn from 27 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
- Official government depth map (PDF)
Not for navigation. Depths are from government surveys and may be outdated.
Water
Trophic status from the latest monitoring: oligo-mesotrophic (transition).
Clarity was measured with a Secchi disk in 3 years between 2010 and 2024; the latest annual mean is 5.5 m.