Map of Healey Lake with depth contours

Healey Lake

45.1648° N, 79.9171° W

Depth contours from the 1973 government survey. Not for navigation.

Download the depth map (SVG)

Healey Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 7.3 km² and lies 1.4 km northeast of Woods Bay.

Maximum depth
21.3 msurveyed 1973
deeper than 62% of the 2,688 surveyed lakes in Ontario
Area
7.3 km²
larger than 94% of the 18,731 lakes in Ontario
Shoreline
69.3 km
longer than 97% of the 18,731 lakes in Ontario
Water clarity
2.6 mSecchi depth, 2025
less clear than 72% of the 1,251 monitored lakes in Ontario
Elevation
195 m

Today on the water

10.6 °C

Observed at Parry Sound, as of 2:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time3 a.m.6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.
Wind km/hW 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts5050
Waves (est.) m0.10.10.10.2
Temp. °C66811131284
Precip. %40404040202000

Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 5.

Weather: Parry Sound (local forecast), as of 2:02 a.m. EDT

Sun and moon

Civil dawn
6:58 a.m.
Sunrise
7:27 a.m.
Sunset
6:45 p.m.
Civil dusk
7:14 p.m.
Moonrise
6:20 a.m.
Moonset
6:03 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Parry Sound, as of 1:00 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.

Depth

18% of Healey Lake is deeper than 10 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey from 1973 records a maximum depth of 21.3 m, drawn from 75 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.

Water

Clarity was measured with a Secchi disk in 6 years between 2001 and 2025; the latest annual mean is 2.6 m.

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

Getting on the water

1 listed boat launch; 1 with parking listed. marks launches on the map.

Photos

Healey Lake - Ontario (40043244854)
Photo: Mark, CC BY 2.0, via Wikimedia Commons
Lake Healey - Ontario (40771634321)
Photo: Mark, CC BY 2.0, via Wikimedia Commons