Reef Lake
46.2471° N, 81.2099° W
Reef Lake, Ontario. 46.2471° N, 81.2099° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/reef-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.
- 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).
Reef Lake covers 2.17 km², Ontario. It lies 28 km northwest of Killarney.
- Area
- 2.17 km²
- Shoreline
- 11.3 km
- Elevation
- 236 m
Today on the water
5.2 °C
Observed at Greater Sudbury, as of 7:00 a.m. EDT
Wind from the southwest: the southwest shore is the sheltered side.
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 15 | NW 20 | NW 20 | NW 20 | var. 5 | SE 10 | SE 10 | SE 10 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Temp. °C | 5 | 8 | 11 | 11 | 7 | 5 | 2 | 0 |
| Precip. % | 30 | 30 | 20 | 20 | 0 | 0 | 0 | 0 |
Today: Cloudy with 30 percent chance of showers this morning and early this afternoon then a mix of sun and cloud. Wind becoming northwest 20 km/h gusting to 40 late this morning. High 11. UV index 3 or moderate.
Weather: Greater Sudbury (local forecast), as of 7:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:03 a.m.
- Sunrise
- 7:34 a.m.
- Sunset
- 6:49 p.m.
- Civil dusk
- 7:19 p.m.
- Moonrise
- 6:26 a.m.
- Moonset
- 6:07 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Sudbury, as of 7:00 a.m. EDT