Lower Onaping Lake
46.8703° N, 81.575° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Lower Onaping Lake, Ontario. 46.8703° N, 81.575° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/lower-onaping-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.
- Fishing access 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.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. 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).
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
Lower Onaping Lake covers 6.1 km², making it larger than 93% of the 18,731 lakes in Ontario. It lies 8.3 km north of Benny.
- Area
- 6.1 km²
- larger than 93% of the 18,731 lakes in Ontario
- Shoreline
- 59 km
- longer than 96% of the 18,731 lakes in Ontario
- Water clarity
- 3.5 mSecchi depth, 2025
- less clear than 52% of the 1,251 monitored lakes in Ontario
- Elevation
- 402 m
Today on the water
3.6 °C
Observed at Sudbury (Greater), as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 8 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 | W 10 | W 10 | NW 20 | NW 20 | NW 20 | NW 10 | var. 5 | SE 10 |
| Gusts km/h | 40 | 40 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | |||
| Temp. °C | 5 | 4 | 7 | 10 | 12 | 10 | 7 | 5 |
| Precip. % | 30 | 30 | 30 | 20 | 20 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 30 percent chance of showers. Wind west 20 km/h gusting to 40 becoming light this evening. Low plus 4.
Weather: Sudbury (Greater) (local forecast), as of 3:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:05 a.m.
- Sunrise
- 7:36 a.m.
- Sunset
- 6:50 p.m.
- Civil dusk
- 7:20 p.m.
- Moonrise
- 6:27 a.m.
- Moonset
- 6:08 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Sudbury, as of 3:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Water
Clarity was measured with a Secchi disk in 5 years between 2021 and 2025; the latest annual mean is 3.5 m.
Getting on the water
3 listed boat launches. marks launches on the map.
South shore
- Boat launch
Southwest shore
- Boat launch
West shore
- Boat launch
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.