Lac Loïs
48.5673° N, 78.7848° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Lac Loïs, Quebec. 48.5673° N, 78.7848° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-lois/, 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.
- 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 Loïs covers 13.5 km², making it larger than 96% of the 29,407 lakes in Quebec. It lies 3.8 km southeast of Lac-Bazin.
- Area
- 13.5 km²
- larger than 96% of the 29,407 lakes in Quebec
- Shoreline
- 54.1 km
- longer than 96% of the 29,407 lakes in Quebec
- Water clarity
- 1.2 mSecchi depth, 2025
- less clear than 97% of the 805 monitored lakes in Quebec
- Elevation
- 300 m
Today on the water
4.2 °C
Observed at La Sarre, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 9 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | W 20 | NW 20 | NW 20 | W 10 | W 10 | var. 5 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.2 | 0.2 | 0.3 | 0.2 | ||||
| Temp. °C | 1 | 1 | 3 | 7 | 8 | 5 | 3 | -1 |
| Precip. % | 0 | 30 | 30 | 30 | 0 | 0 | 0 | 0 |
Tonight: Partly cloudy. 60 percent chance of showers this evening. Wind northwest 20 km/h gusting to 40 becoming light early this evening. Low plus 1.
Weather: La Sarre (local forecast), as of 3:03 a.m. EDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:37 p.m.
- Civil dusk
- 7:08 p.m.
- Moonrise
- 6:17 a.m.
- Moonset
- 5:55 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Water
Trophic status from the latest monitoring: meso-eutrophic (transition).
Clarity was measured with a Secchi disk in 6 years between 2020 and 2025; the latest annual mean is 1.2 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.