Thirteen Island Lake
44.5408° N, 76.6216° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Thirteen Island Lake, Ontario. 44.5408° N, 76.6216° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/thirteen-island-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.
- 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.
Thirteen Island Lake covers 1.66 km², making it larger than 78% of the 18,731 lakes in Ontario. It lies 1.5 km southeast of Glendower.
Government surveys have recorded 12 fish species here, including black crappie, bluegill and largemouth bass.
- Area
- 1.66 km²
- larger than 78% of the 18,731 lakes in Ontario
- Shoreline
- 19.4 km
- longer than 87% of the 18,731 lakes in Ontario
- Water clarity
- 4.8 mSecchi depth, 2016
- clearer than 77% of the 1,251 monitored lakes in Ontario
- Fish species
- 12
- more than 81% of the 2,454 surveyed lakes in Ontario
- Elevation
- 153 m
Today on the water
9.7 °C
Observed at Sydenham, as of 4:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 5 | 7 | 11 | 14 | 15 | 10 | 5 | 1 |
| Precip. % | 20 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Tonight: Partly cloudy. 40 percent chance of showers this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 5.
Weather: Sydenham (local forecast), as of 4:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:45 a.m.
- Sunrise
- 7:14 a.m.
- Sunset
- 6:32 p.m.
- Civil dusk
- 7:01 p.m.
- Moonrise
- 6:06 a.m.
- Moonset
- 5:50 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Kingston, 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 1 government surveys that recorded them.
Forage fish and other species (4)
Forage fish
- Common Shiner 1
- Golden Shiner 1
Other
- Brown Bullhead 1
- White Sucker 1
Numbers are the surveys that recorded each species.
Stocking
Walleye22,342 fish in 2 years, most recently 2018
All stocking records (2)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2018 | Walleye | 12,342 | Yearlings |
| 2016 | Walleye | 10,000 | Fingerlings |
Eating your catch
The provincial guide to eating fish (2026) sets limits for 9 species from Thirteen Island Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Black Crappie | 20-25 cm | 16 | 16 | Precautionary |
| Bluegill | 15-20 cm | 16 | 16 | Precautionary |
| Largemouth Bass | 30-35 cm | 16 | 4 | Mercury |
| Northern Pike | 55-60 cm | 8 | 4 | Mercury |
| Pumpkinseed | 15-20 cm | 16 | 16 | Precautionary |
| Smallmouth Bass | 35-40 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 8 | 4 | Mercury |
| Yellow Perch | 20-25 cm | 16 | 8 | Mercury |
| Brown Bullhead | 25-30 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.
Water
Clarity was measured with a Secchi disk in 15 years between 1996 and 2016; the latest annual mean is 4.8 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.