Lac Serpent
46.1504° N, 75.4776° W
Depth contours from the 2011 government survey. Not for navigation.
Download the depth map (SVG)Lac Serpent, Quebec. 46.1504° N, 75.4776° W
Maximum depth 64.9 m (2011 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-serpent/, 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 Serpent is 64.9 m deep at its deepest point, deeper than 97% of the 1,506 surveyed lakes in Quebec. It covers 2.43 km² and lies 12 km northeast of Lac-Campion.
- Maximum depth
- 64.9 msurveyed 2011
- deeper than 97% of the 1,506 surveyed lakes in Quebec
- Area
- 2.43 km²
- larger than 85% of the 29,407 lakes in Quebec
- Shoreline
- 15 km
- longer than 84% of the 29,407 lakes in Quebec
- Water clarity
- 3.6 mSecchi depth, 2024
- less clear than 55% of the 805 monitored lakes in Quebec
- Elevation
- 205 m
Today on the water
5.8 °C
Observed at Mont-Laurier, as of 8:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. | 6 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 10 | NW 20 | NW 20 | NW 15 | NW 10 | var. 5 | var. 5 | var. 5 |
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 | |||
| Temp. °C | 7 | 8 | 9 | 7 | 3 | 1 | -1 | -3 |
| Precip. % | 30 | 30 | 30 | 0 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming northwest 20 km/h near noon. High 9. UV index 3 or moderate.
Weather: Mont-Laurier (local forecast), as of 8:03 a.m. EDT
Sun and moon
- Civil dawn
- 6:40 a.m.
- Sunrise
- 7:10 a.m.
- Sunset
- 6:26 p.m.
- Civil dusk
- 6:56 p.m.
- Moonrise
- 6:01 a.m.
- Moonset
- 5:44 p.m.
- Moon
- Waning crescent, 1% lit
Depth
23% of Lac Serpent is deeper than 30 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 2011 records a maximum depth of 64.9 m, drawn from 52 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 17 years between 2008 and 2024; the latest annual mean is 3.6 m.