Lac Tomasine

46.7316° N, 76.3208° W

Lac Tomasine, Quebec. 46.7316° N, 76.3208° W

Maximum depth 31.1 m. Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-tomasine/, 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.
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 Tomasine is 31.1 m deep at its deepest point. It covers 4.32 km² and lies 27 km west of Chute-Rouge, Quebec.

Today on the water

5.4 °C

Wind W 7 km/h

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

Hourly forecast, next 24 hours
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	NW 10	NW 20	NW 20	NW 20	NW 10	var. 5	var. 5	var. 5
Temp. °C	7	9	10	11	6	3	1	0
Precip. %	30	30	30	30	0	0	0	0

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming northwest 20 km/h this morning. High 11. UV index 3 or moderate.

Weather: Maniwaki (local forecast), as of 7:02 a.m. EDT

The government depth survey records a maximum depth of 31.1 m, drawn from 13 depth contours.

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 Depths are from government surveys and may be outdated.