Lac Laval
49.008° N, 69.1857° W
Depth contours from the 1980 government survey. Not for navigation.
Download the depth map (SVG)Lac Laval, Quebec. 49.008° N, 69.1857° W
Maximum depth 68.8 m (1980 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-laval/, 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 Laval is 68.8 m deep at its deepest point, deeper than 98% of the 1,506 surveyed lakes in Quebec. It covers 6.54 km² and lies 22 km northwest of Saint-Marc-de-Latour.
- Maximum depth
- 68.8 msurveyed 1980
- deeper than 98% of the 1,506 surveyed lakes in Quebec
- Area
- 6.54 km²
- larger than 93% of the 29,407 lakes in Quebec
- Shoreline
- 21.1 km
- longer than 89% of the 29,407 lakes in Quebec
- Water clarity
- 4.6 mSecchi depth, 2010
- clearer than 64% of the 805 monitored lakes in Quebec
- Elevation
- 213 m
Today on the water
9.7 °C
Observed at Forestville, as of 1:00 p.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 12 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. | 8 a.m. | 11 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 20 | W 20 | W 20 | W 20 | NW 30 | NW 30 | NW 20 | NW 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | 50 | 50 | 40 | 40 |
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | |||
| Temp. °C | 10 | 8 | 6 | 6 | 6 | 6 | 4 | 7 |
| Precip. % | 30 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 30 percent chance of showers. Wind west 20 km/h gusting to 40. High 10. UV index 3 or moderate.
Weather: Forestville (local forecast), as of 1:03 p.m. EDT
Sun and moon
- Civil dawn
- 6:16 a.m.
- Sunrise
- 6:48 a.m.
- Sunset
- 5:58 p.m.
- Civil dusk
- 6:30 p.m.
- Moonrise
- 5:36 a.m.
- Moonset
- 5:16 p.m.
- Moon
- Waning crescent, 1% lit
Depth
38% of Lac Laval 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 1980 records a maximum depth of 68.8 m, drawn from 30 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: oligotrophic.