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Lac Authier

48.9669° N, 78.5871° W

Lac Authier, Quebec. 48.9669° N, 78.5871° W

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-authier/, 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 Authier covers 1.39 km², Quebec. It lies 20 km north of Languedoc.

Area
1.39 km²
Shoreline
5.3 km
Elevation
313 m

Today on the water

4 °C

Wind W 11 km/h

Observed at La Sarre, as of 4:00 a.m. EDT

Wind from the west: the west shore is the sheltered side.

Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hW 15W 20NW 20NW 20W 10W 10var. 5var. 5
Gusts km/h404040
Temp. °C2357742-1
Precip. %303030300000

Today: A mix of sun and cloud with 30 percent chance of rain showers or flurries. Wind becoming northwest 20 km/h gusting to 40 this morning. High 8. UV index 3 or moderate.

Weather: La Sarre (local forecast), as of 5:05 a.m. EDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:25 a.m.
Sunset
6:36 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:16 a.m.
Moonset
5:54 p.m.
Moon
Waning crescent, 1% lit

Depth

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 Depths are from government surveys and may be outdated.