Map of Glanmire Lake

Glanmire Lake

44.7645° N, 77.6463° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Glanmire Lake covers 1.16 km², making it larger than 71% of the 18,731 lakes in Ontario. It lies 2.4 km northeast of Glanmire.

Area
1.16 km²
larger than 71% of the 18,731 lakes in Ontario
Shoreline
12.3 km
longer than 79% of the 18,731 lakes in Ontario
Water clarity
2.8 mSecchi depth, 2025
less clear than 67% of the 1,251 monitored lakes in Ontario
Elevation
301 m

Today on the water

5.5 °C

Wind NW 4 km/h

Observed at Apsley, as of 4:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 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
Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.10.20.2
Temp. °C46101314841
Precip. %2040402020000

Tonight: Partly cloudy. 60 percent chance of showers this evening. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 4.

Weather: Apsley (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:49 a.m.
Sunrise
7:18 a.m.
Sunset
6:36 p.m.
Civil dusk
7:05 p.m.
Moonrise
6:10 a.m.
Moonset
5:54 p.m.
Moon
Waning crescent, 1% lit

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.

Water

Clarity was measured with a Secchi disk in 22 years between 2002 and 2025; the latest annual mean is 2.8 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)