Perrault Lake
50.2908° N, 93.1307° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Perrault Lake, Ontario. 50.2908° N, 93.1307° W
Maximum depth 24.4 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/perrault-lake/, 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.
- Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fishing access points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
- Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Perrault Lake is 24.4 m deep at its deepest point, deeper than 70% of the 2,688 surveyed lakes in Ontario. It covers 32.9 km² and lies beside Perrault Falls.
Government surveys have recorded 12 fish species here, including walleye, yellow perch and northern pike.
- Maximum depth
- 24.4 m
- deeper than 70% of the 2,688 surveyed lakes in Ontario
- Area
- 32.9 km²
- larger than 98% of the 18,731 lakes in Ontario
- Shoreline
- 82.8 km
- longer than 97% of the 18,731 lakes in Ontario
- Water clarity
- 3.3 mSecchi depth, 2019
- less clear than 56% of the 1,251 monitored lakes in Ontario
- Fish species
- 12
- more than 81% of the 2,454 surveyed lakes in Ontario
- Elevation
- 360 m
Today on the water
0.6 °C
Observed at Ear Falls, as of 4:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.5 m. Around 4 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.
| Time | 5 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/h | S 10 | S 10 | S 20 | E 10 | SE 30 | SE 30 | SE 30 | SE 20 |
| Gusts km/h | 50 | 50 | 50 | 40 | ||||
| Waves (est.) m | 0.2 | 0.2 | 0.3 | 0.2 | 0.5 | |||
| Temp. °C | 1 | 3 | 8 | 10 | 11 | 10 | 9 | 8 |
| Precip. % | 20 | 20 | 20 | 60 | 60 | 60 | 10 | 10 |
Tonight: A few clouds. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low plus 1.
Weather: Ear Falls (local forecast), as of 4:02 a.m. CDT
Sun and moon
- Civil dawn
- 6:52 a.m.
- Sunrise
- 7:25 a.m.
- Sunset
- 6:33 p.m.
- Civil dusk
- 7:05 p.m.
- Moonrise
- 6:18 a.m.
- Moonset
- 5:52 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
50% of Perrault Lake is deeper than 10 m.
How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).
The government depth survey records a maximum depth of 24.4 m, drawn from 40 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
Not for navigation. Depths are from government surveys and may be outdated.
Fish
Sport fish by the share of the 34 government surveys (2009–2009) that recorded them.
Forage fish and other species (6)
Forage fish
- Trout-Perch 11
- Emerald Shiner 9
- Ninespine Stickleback 9
- Spottail Shiner 9
- Logperch 1
Other
- White Sucker 13
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 2 species from Perrault Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 16 | 8 | Mercury |
| Walleye | 40-45 cm | 16 | 4 | Mercury |
* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide
Fishing regulations: Fisheries Management Zone 4. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 4 years between 2015 and 2019; the latest annual mean is 3.3 m.
Getting on the water
2 listed boat launches. marks launches on the map.
- Perrault Falls Access Point-keap115
- Perrault Lake Access Point-keap111
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.