O'Brien Lake
46.4001° N, 81.7912° W
O'Brien Lake, Ontario. 46.4001° N, 81.7912° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/o-brien-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.
- 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).
O'Brien Lake covers 1.35 km², Ontario. It lies 18 km north of Espanola.
- Area
- 1.35 km²
- Shoreline
- 9.1 km
- Elevation
- 270 m
Today on the water
5.5 °C
Observed at Sudbury (Greater), as of 6:00 a.m. EDT
Wind from the southwest: the southwest shore is the sheltered side.
| Time | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. | 4 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | NW 15 | NW 20 | NW 20 | NW 20 | var. 5 | SE 10 | SE 10 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Temp. °C | 5 | 7 | 10 | 11 | 8 | 6 | 3 | 1 |
| Precip. % | 30 | 30 | 30 | 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: Sudbury (Greater) (local forecast), as of 6:05 a.m. EDT
Sun and moon
- Civil dawn
- 7:06 a.m.
- Sunrise
- 7:36 a.m.
- Sunset
- 6:51 p.m.
- Civil dusk
- 7:21 p.m.
- Moonrise
- 6:28 a.m.
- Moonset
- 6:10 p.m.
- Moon
- Waning crescent, 1% lit