Map of Arran Lake

Arran Lake

44.482° N, 81.2595° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Arran Lake covers 3.98 km², making it larger than 89% of the 18,731 lakes in Ontario. It lies 3.6 km northwest of Arkwright.

Government surveys have recorded 14 fish species here, including pumpkinseed, northern pike and rock bass.

Area
3.98 km²
larger than 89% of the 18,731 lakes in Ontario
Shoreline
16.8 km
longer than 85% of the 18,731 lakes in Ontario
Water clarity
2.6 mSecchi depth, 1995
less clear than 72% of the 1,251 monitored lakes in Ontario
Fish species
14
more than 93% of the 2,454 surveyed lakes in Ontario
Elevation
212 m

Today on the water

9 °C

Mostly CloudyWind W 5 km/h

Observed at Port Elgin, as of 3:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.3 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time4 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/hW 15W 15NW 20NW 30NW 30NE 10E 10SE 10
Gusts km/h5050
Waves (est.) m0.10.10.20.30.3
Temp. °C461013151396
Precip. %4040402020000

Tonight: Partly cloudy with 60 percent chance of showers. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.

Weather: Port Elgin (local forecast), as of 3:01 a.m. EDT

Sun and moon

Civil dawn
7:03 a.m.
Sunrise
7:32 a.m.
Sunset
6:51 p.m.
Civil dusk
7:20 p.m.
Moonrise
6:25 a.m.
Moonset
6:09 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Tiverton, as of 3:00 a.m. EDT

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Fish

Sport fish by the share of the 8 government surveys (1948–1978) that recorded them.

  • Pumpkinseed5 of 8
  • Northern Pike4 of 8
  • Rock Bass4 of 8
  • Yellow Perch3 of 8
  • Largemouth Bass1 of 8Not recorded since 1948
Forage fish and other species (9)

Forage fish

  • Iowa Darter 2
  • Blacknose Shiner 1
  • Bluntnose Minnow 1
  • Common Shiner 1
  • Golden Shiner 1
  • Johnny Darter 1
  • River Chub 1

Other

  • Brown Bullhead 6
  • White Sucker 5

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Arran Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm164Mercury
Yellow Perch20-25 cm168Mercury

* 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 16. Check seasons and limits before you fish.