Round Lake
46.3906° N, 83.8267° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Round Lake, Ontario. 46.3906° N, 83.8267° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/round-lake-near-bruce-mines/, 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.
- 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).
Round Lake covers 1.28 km², making it larger than 73% of the 18,731 lakes in Ontario. It lies 1.8 km south of Plummer.
- Area
- 1.28 km²
- larger than 73% of the 18,731 lakes in Ontario
- Shoreline
- 5.8 km
- longer than 56% of the 18,731 lakes in Ontario
- Water clarity
- 2.8 mSecchi depth, 2017
- less clear than 68% of the 1,251 monitored lakes in Ontario
- Elevation
- 220 m
Today on the water
9.9 °C
Observed at Sault Ste. Marie, as of 4:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 5 a.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 | NW 30 | NW 30 | NW 30 | NW 15 | var. 5 | E 20 | SE 30 | E 30 |
| Gusts km/h | 50 | 50 | 50 | |||||
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | |||
| Temp. °C | 8 | 5 | 8 | 13 | 14 | 9 | 6 | 7 |
| Precip. % | 30 | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm after midnight. Wind northwest 30 km/h gusting to 50. Low plus 5.
Weather: Sault Ste. Marie (local forecast), as of 4:05 a.m. EDT
Sun and moon
- Civil dawn
- 7:14 a.m.
- Sunrise
- 7:44 a.m.
- Sunset
- 6:59 p.m.
- Civil dusk
- 7:29 p.m.
- Moonrise
- 6:37 a.m.
- Moonset
- 6:18 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Sault Ste. Marie, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Water
Clarity was measured with a Secchi disk in 3 years between 2010 and 2017; the latest annual mean is 2.8 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.