Longpoint Lake
47.6853° N, 80.6091° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Longpoint Lake, Ontario. 47.6853° N, 80.6091° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/longpoint-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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Longpoint Lake covers 3.38 km², making it larger than 88% of the 18,731 lakes in Ontario. It lies 9.6 km northeast of O'Brien.
Government surveys have recorded 5 fish species here, including rock bass, northern pike and pumpkinseed.
- Area
- 3.38 km²
- larger than 88% of the 18,731 lakes in Ontario
- Shoreline
- 28.6 km
- longer than 92% of the 18,731 lakes in Ontario
- Water clarity
- 2.4 mSecchi depth, 2005
- less clear than 77% of the 1,251 monitored lakes in Ontario
- Fish species
- 5
- more than 53% of the 2,454 surveyed lakes in Ontario
- Elevation
- 315 m
Today on the water
4.1 °C
Observed at Earlton, as of 5:00 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 | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | NW 20 | W 20 | NW 20 | W 10 | var. 5 | S 10 | S 10 |
| Gusts km/h | 40 | 40 | ||||||
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 | |||
| Temp. °C | 3 | 5 | 7 | 11 | 10 | 5 | 1 | -1 |
| Precip. % | 30 | 30 | 20 | 20 | 0 | 0 | 0 | 0 |
Tonight: Cloudy with 30 percent chance of showers. Wind west 20 km/h gusting to 40 becoming light late this evening. Low plus 3.
Weather: Earlton (local forecast), as of 5:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:01 a.m.
- Sunrise
- 7:32 a.m.
- Sunset
- 6:45 p.m.
- Civil dusk
- 7:16 p.m.
- Moonrise
- 6:24 a.m.
- Moonset
- 6:04 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 2 government surveys (2013–2016) that recorded them.
Forage fish and other species (2)
Forage fish
- Mottled Sculpin 2
Other
- White Sucker 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 4 species from Longpoint Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Whitefish | 45-50 cm | 16 | 16 | Precautionary |
| Northern Pike | 55-60 cm | 12 | 4 | Mercury |
| Walleye | 40-45 cm | 8 | 4 | Mercury |
| Cisco (Lake Herring) | 25-30 cm | 16 | 8 | Mercury |
* 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 8. Check seasons and limits before you fish.
Water
Getting on the water
1 listed boat launch; 1 with parking listed. marks launches on the map.
- Longpoint Lake Access Point
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.