Crayfish Lake
48.6867° N, 90.6148° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Crayfish Lake, Ontario. 48.6867° N, 90.6148° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/crayfish-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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Crayfish Lake covers 5.45 km², making it larger than 92% of the 18,731 lakes in Ontario. It lies 6.6 km east of Huronian.
Government surveys have recorded 7 fish species here, including northern pike, walleye and lake whitefish.
- Area
- 5.45 km²
- larger than 92% of the 18,731 lakes in Ontario
- Shoreline
- 44 km
- longer than 95% of the 18,731 lakes in Ontario
- Fish species
- 7
- more than 61% of the 2,454 surveyed lakes in Ontario
- Elevation
- 469 m
Today on the water
-1.8 °C
Observed at Upsala, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the south: the south shore is sheltered, waves build toward the north shore.
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | var. 5 | S 20 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 0 | -1 | 4 | 12 | 14 | 12 | 11 | 10 |
| Precip. % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Tonight: Partly cloudy with 40 percent chance of showers early this evening then clear. Wind northwest 20 km/h becoming light this evening. Low minus 2.
Weather: Upsala (local forecast), as of 3:00 a.m. EDT
Sun and moon
- Civil dawn
- 7:42 a.m.
- Sunrise
- 8:13 a.m.
- Sunset
- 7:24 p.m.
- Civil dusk
- 7:56 p.m.
- Moonrise
- 7:06 a.m.
- Moonset
- 6:43 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 22 government surveys (2008–2008) that recorded them.
Forage fish and other species (2)
Forage fish
- Blacknose Shiner 5
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 Crayfish Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 4 | Do not eat | 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 6. Check seasons and limits before you fish.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.