Lac Patterson
46.1423° N, 76.2035° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Lac Patterson, Quebec. 46.1423° N, 76.2035° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-patterson-near-gracefield/, 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 Patterson covers 1.14 km², making it larger than 76% of the 29,407 lakes in Quebec. It lies 2.6 km east of Lac-Cayamant.
- Area
- 1.14 km²
- larger than 76% of the 29,407 lakes in Quebec
- Shoreline
- 8.2 km
- longer than 74% of the 29,407 lakes in Quebec
- Water clarity
- 7.9 mSecchi depth, 2025
- clearer than 96% of the 805 monitored lakes in Quebec
- Elevation
- 240 m
Today on the water
5.4 °C
Observed at Maniwaki, as of 7:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 10 | NW 20 | NW 20 | NW 20 | NW 10 | var. 5 | var. 5 | var. 5 |
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.2 | ||||
| Temp. °C | 7 | 9 | 10 | 11 | 6 | 3 | 1 | 0 |
| Precip. % | 30 | 30 | 30 | 30 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming northwest 20 km/h this morning. High 11. UV index 3 or moderate.
Weather: Maniwaki (local forecast), as of 7:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:43 a.m.
- Sunrise
- 7:13 a.m.
- Sunset
- 6:29 p.m.
- Civil dusk
- 6:59 p.m.
- Moonrise
- 6:05 a.m.
- Moonset
- 5:47 p.m.
- Moon
- Waning crescent, 1% lit
Water
Trophic status from the latest monitoring: oligotrophic.
Clarity was measured with a Secchi disk in 4 years between 2022 and 2025; the latest annual mean is 7.9 m.