Lac Arthabaska
47.6587° N, 70.7782° W
Depth contours from the 2012 government survey. Not for navigation.
Download the depth map (SVG)Lac Arthabaska, Quebec. 47.6587° N, 70.7782° W
Maximum depth 16.7 m (2012 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-arthabaska/, 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 Arthabaska is 16.7 m deep at its deepest point, deeper than 51% of the 1,506 surveyed lakes in Quebec. It covers 0.45 km² and lies 23 km northwest of Saint-Placide-Nord.
- Maximum depth
- 16.7 msurveyed 2012
- deeper than 51% of the 1,506 surveyed lakes in Quebec
- Area
- 0.45 km²
- larger than 59% of the 29,407 lakes in Quebec
- Shoreline
- 10 km
- longer than 78% of the 29,407 lakes in Quebec
- Water clarity
- 2.5 mSecchi depth, 2025
- less clear than 78% of the 805 monitored lakes in Quebec
- Elevation
- 698 m
Today on the water
6.7 °C
Observed at Baie-Saint-Paul, as of 3:00 a.m. EDT
calm Estimated waves, next 12 hours: up to 0.1 m. Around 4 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 | NW 10 | W 10 | W 20 | W 20 | W 20 | NW 20 | NW 20 | NW 20 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |||
| Temp. °C | 6 | 5 | 7 | 10 | 9 | 6 | 4 | 4 |
| Precip. % | 0 | 30 | 30 | 30 | 30 | 0 | 0 | 0 |
Tonight: A few showers ending early this evening then partly cloudy with 30 percent chance of showers. Risk of a thunderstorm early this evening. Low plus 4.
Weather: Baie-Saint-Paul (local forecast), as of 3:00 a.m. EDT
Sun and moon
- Civil dawn
- 6:22 a.m.
- Sunrise
- 6:53 a.m.
- Sunset
- 6:06 p.m.
- Civil dusk
- 6:37 p.m.
- Moonrise
- 5:42 a.m.
- Moonset
- 5:24 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
The government depth survey from 2012 records a maximum depth of 16.7 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: oligo-mesotrophic (transition).
Clarity was measured with a Secchi disk in 15 years between 2010 and 2025; the latest annual mean is 2.5 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.