Map of Malachi Lake with depth contours

Malachi Lake

49.8966° N, 95.0077° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Malachi Lake is 18.3 m deep at its deepest point, deeper than 54% of the 2,688 surveyed lakes in Ontario. It covers 10.6 km² and lies beside Malachi.

Government surveys have recorded 10 fish species here, including walleye, yellow perch and cisco.

Maximum depth
18.3 m
deeper than 54% of the 2,688 surveyed lakes in Ontario
Area
10.6 km²
larger than 95% of the 18,731 lakes in Ontario
Shoreline
40.6 km
longer than 95% of the 18,731 lakes in Ontario
Water clarity
4 mSecchi depth, 2025
clearer than 60% of the 1,251 monitored lakes in Ontario
Fish species
10
more than 73% of the 2,454 surveyed lakes in Ontario
Elevation
329 m

Today on the water

2.7 °C

Wind ESE 2 km/h

Observed at Whiteshell, as of 2:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest 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/hvar. 5SE 10SE 20SE 20SE 20SE 20SE 20SE 20
Gusts km/h404040404040
Waves (est.) m0.10.10.20.2
Temp. °C3481215151514
Precip. %00606060000

Tonight: Partly cloudy. Low plus 3.

Weather: Whiteshell (local forecast), as of 2:02 a.m. CDT

Sun and moon

Civil dawn
7:00 a.m.
Sunrise
7:32 a.m.
Sunset
6:41 p.m.
Civil dusk
7:13 p.m.
Moonrise
6:26 a.m.
Moonset
6:00 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.

Depth

35% of Malachi 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 records a maximum depth of 18.3 m, drawn from 23 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 23 government surveys (2010–2010) that recorded them.

  • Walleye21 of 23
  • Yellow Perch17 of 23
  • Cisco16 of 23
  • Northern Pike12 of 23
  • Smallmouth Bass4 of 23
Forage fish and other species (5)

Forage fish

  • Spottail Shiner 4
  • Trout-Perch 3
  • Logperch 2
  • Emerald Shiner 1

Other

  • White Sucker 10

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 3 species from Malachi Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm84Mercury
Smallmouth Bass35-40 cm4Do not eatMercury
Walleye40-45 cm84Mercury

* 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 5. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 27 years between 1999 and 2025; the latest annual mean is 4 m.

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