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Map of Lac Rond

Lac Rond

46.0172° N, 71.2556° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Lac Rond, Quebec. 46.0172° N, 71.2556° W

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-rond-near-thetford-mines/, 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 Rond covers 0.3 km², making it smaller than 52% of the 29,407 lakes in Quebec. It lies 5.7 km south of Lac-Bécancour.

Area
0.3 km²
smaller than 52% of the 29,407 lakes in Quebec
Shoreline
2.1 km
shorter than 81% of the 29,407 lakes in Quebec
Water clarity
0.8 mSecchi depth, 2025
less clear than 99% of the 805 monitored lakes in Quebec
Elevation
386 m

Today on the water

4.6 °C

Wind SW 7 km/h

Observed at Thetford Mines, as of 4:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 5 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 10W 10W 20W 20W 20W 20W 15W 10
Gusts km/h404040
Waves (est.) m0.10.10.10.10.1
Temp. °C98101110652
Precip. %60404040404000

Tonight: Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm this evening. Wind west 20 km/h gusting to 40 becoming light this evening. Low 8.

Weather: Thetford Mines (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:24 a.m.
Sunrise
6:53 a.m.
Sunset
6:09 p.m.
Civil dusk
6:39 p.m.
Moonrise
5:44 a.m.
Moonset
5:27 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: eutrophic.

Clarity was measured with a Secchi disk in 8 years between 2018 and 2025; the latest annual mean is 0.8 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)