Lac Long
47.2164° N, 72.3127° W
Lac Long, Quebec. 47.2164° N, 72.3127° W
Maximum depth 22.7 m (1975 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-long-near-lac-chat/, 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 Long is 22.7 m deep at its deepest point. It covers 0.87 km² and lies 25 km northeast of Lac-Chat, Quebec.
- Maximum depth
- 22.7 msurveyed 1975
- Area
- 0.87 km²
- Shoreline
- 12.1 km
- Elevation
- 299 m
Today on the water
3.4 °C
Observed at La Tuque, as of 5:00 a.m. EDT
| Time | 6 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/h | NW 10 | NW 20 | NW 20 | NW 20 | NW 20 | NW 20 | NW 20 | NW 20 |
| Gusts km/h | 40 | 40 | ||||||
| Temp. °C | 4 | 6 | 8 | 9 | 7 | 4 | 3 | 3 |
| Precip. % | 40 | 40 | 40 | 40 | 0 | 0 | 0 | 0 |
Today: Mainly cloudy with 40 percent chance of showers. Wind becoming northwest 20 km/h gusting to 40 this morning. High 10. UV index 3 or moderate.
Weather: La Tuque (local forecast), as of 5:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:28 a.m.
- Sunrise
- 6:59 a.m.
- Sunset
- 6:12 p.m.
- Civil dusk
- 6:43 p.m.
- Moonrise
- 5:49 a.m.
- Moonset
- 5:31 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
The government depth survey from 1975 records a maximum depth of 22.7 m, drawn from 13 depth contours.
Not for navigation. Depths are from government surveys and may be outdated.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.