Kennisis Lake
45.2136° N, 78.6364° W
Depth contours from the 1974 government survey. Not for navigation.
Download the depth map (SVG)Kennisis Lake, Ontario. 45.2136° N, 78.6364° W
Maximum depth 73.2 m (1974 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/kennisis-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.
- Fish stocking for recreational purposes, 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).
- Air Quality Health Index observations and forecasts, 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.
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
Kennisis Lake is 73.2 m deep at its deepest point, deeper than 97% of the 2,688 surveyed lakes in Ontario. It covers 15 km² and lies 8.5 km northwest of West Guilford.
Government surveys have recorded 12 fish species here, including rock bass, smallmouth bass and lake trout.
- Maximum depth
- 73.2 msurveyed 1974
- deeper than 97% of the 2,688 surveyed lakes in Ontario
- Area
- 15 km²
- larger than 97% of the 18,731 lakes in Ontario
- Shoreline
- 57.2 km
- longer than 96% of the 18,731 lakes in Ontario
- Water clarity
- 4.9 mSecchi depth, 2025
- clearer than 78% of the 1,251 monitored lakes in Ontario
- Fish species
- 12
- more than 81% of the 2,454 surveyed lakes in Ontario
- Elevation
- 371 m
Today on the water
4.7 °C
Observed at Oxtongue Lake, as of 2:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m.
| Time | 3 a.m. | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts | 50 | 50 | ||||||
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.3 | ||||
| Temp. °C | 3 | 3 | 5 | 9 | 12 | 11 | 6 | 1 |
| Precip. % | 20 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Tonight: Partly cloudy. 60 percent chance of showers this evening. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 2.
Weather: Oxtongue Lake (local forecast), as of 2:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:53 a.m.
- Sunrise
- 7:22 a.m.
- Sunset
- 6:39 p.m.
- Civil dusk
- 7:09 p.m.
- Moonrise
- 6:14 a.m.
- Moonset
- 5:58 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Dorset, as of 1:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Depth
33% of Kennisis Lake is deeper than 30 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 from 1974 records a maximum depth of 73.2 m, drawn from 88 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 30 government surveys (2010–2010) that recorded them.
Forage fish and other species (6)
Forage fish
- Bluntnose Minnow 2
- Golden Shiner 2
- Spottail Shiner 1
Other
- White Sucker 6
- Brown Bullhead 2
- Longnose Sucker 1
Numbers are the surveys that recorded each species.
Stocking
Brook Trout6,674 fish in 1 year, most recently 2022
All stocking records (1)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2022 | Brook Trout | 6,674 | Yearlings |
Eating your catch
The provincial guide to eating fish (2026) sets limits for 3 species from Kennisis Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 4 | Do not eat | PFAS |
| Smallmouth Bass | 35-40 cm | 2 | Do not eat | PFAS |
| White Sucker | 40-45 cm | 8 | 4 | PFAS |
* 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 15. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 27 years between 1992 and 2025; the latest annual mean is 4.9 m.
Getting on the water
5 listed access points, 4 of them boat launches; 3 with parking listed. marks launches on the map.
Northeast shore
- Kennisis/Little Kennisis
- Boat launch
West shore
- Kennisis Lake Dam
- Kennisis Lake Dam - 6723 Kennisis Lake Rd 7
Northwest shore
- Paddy's Bay
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.