Clayton Lake
45.1775° N, 76.3458° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Clayton Lake, Ontario. 45.1775° N, 76.3458° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/clayton-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.
- 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.
Clayton Lake covers 4.55 km², making it larger than 91% of the 18,731 lakes in Ontario. It lies beside Clayton.
Government surveys have recorded 8 fish species here, including bluegill, largemouth bass and pumpkinseed.
- Area
- 4.55 km²
- larger than 91% of the 18,731 lakes in Ontario
- Shoreline
- 32.8 km
- longer than 93% of the 18,731 lakes in Ontario
- Fish species
- 8
- more than 65% of the 2,454 surveyed lakes in Ontario
- Elevation
- 159 m
Today on the water
7.3 °C
Observed at Smiths Falls, as of 5:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| 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 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | NW 10 | NW 10 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 | |||
| Temp. °C | 5 | 7 | 11 | 13 | 12 | 7 | 3 | 2 |
| Precip. % | 40 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Today: A mix of sun and cloud with 40 percent chance of showers. Wind becoming northwest 30 km/h gusting to 50 near noon. High 14. UV index 3 or moderate.
Weather: Smiths Falls (local forecast), as of 5:01 a.m. EDT
Sun and moon
- Civil dawn
- 6:44 a.m.
- Sunrise
- 7:13 a.m.
- Sunset
- 6:30 p.m.
- Civil dusk
- 7:00 p.m.
- Moonrise
- 6:05 a.m.
- Moonset
- 5:49 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Ottawa, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 2 government surveys (2009–2012) that recorded them.
Forage fish and other species (2)
- Banded Killifish 1
- Bluntnose Minnow 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 9 species from Clayton Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Black Crappie | 20-25 cm | 12 | 12 | PCB |
| Largemouth Bass | 30-35 cm | 16 | 4 | Mercury |
| Northern Pike | 55-60 cm | 12 | 4 | Mercury |
| Pumpkinseed | 15-20 cm | 16 | 16 | Precautionary |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Walleye | 40-45 cm | 12 | 4 | Mercury |
| Yellow Perch | 20-25 cm | 16 | 16 | Precautionary |
| Brown Bullhead | 30-35 cm | 12 | 12 | PCB |
| White Sucker | 40-45 cm | 16 | 16 | Precautionary |
* 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 18. Check seasons and limits before you fish.
Getting on the water
1 listed boat launch. marks launches on the map.
- Boat launch
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.