Map of Lake Nipissing with depth contours

Lake Nipissing

46.2904° N, 80.1056° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Lake Nipissing is 70 m deep at its deepest point, deeper than 97% of the 2,688 surveyed lakes in Ontario. It covers 856 km² and lies beside North Bay.

Government surveys have recorded 28 fish species here, including yellow perch, cisco and walleye.

Maximum depth
70 m
deeper than 97% of the 2,688 surveyed lakes in Ontario
Area
856 km²
larger than 99% of the 18,731 lakes in Ontario
Shoreline
962 km
longer than 99% 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
Fish species
28
more than 99% of the 2,454 surveyed lakes in Ontario
Elevation
192 m

Today on the water

5.7 °C

Mostly CloudyWind NW 11 km/h, gusts 40

Observed at North Bay, as of 1:00 a.m. EDT

rough Estimated waves, next 12 hours: up to 0.7 m. Wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time2 a.m.5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.
Wind km/hW 10W 10NW 20W 20NW 20N 10NE 10E 10
Gusts40
Waves (est.) m0.20.20.60.70.6
Temp. °C6448131495
Precip. %30303020202000

Tonight: Mainly cloudy with 30 percent chance of showers. Wind west 20 km/h gusting to 40 becoming light early this evening. Low plus 4.

Weather: North Bay (local forecast), as of 1:01 a.m. EDT

Water level

Lake Nipissing at North Bay: 5.69 m at Thu 11:35 p.m. EDT: 2 cm below the median for this time of year, within the normal range.

5.825.58

Normal range (25th–75th percentile, HYDAT) Last 7 days

Provisional real-time data, subject to revision. hydrometric station 02DD006

Sun and moon

Civil dawn
6:59 a.m.
Sunrise
7:29 a.m.
Sunset
6:44 p.m.
Civil dusk
7:14 p.m.
Moonrise
6:21 a.m.
Moonset
6:03 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

North Bay, 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

The government depth survey records a maximum depth of 70 m, drawn from 4,292 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 99 government surveys (2009–2018) that recorded them.

  • Yellow Perch77 of 99
  • Cisco54 of 99
  • Walleye43 of 99
  • Northern Pike26 of 99
  • Freshwater Drum18 of 99
  • Rock Bass14 of 99
  • Smallmouth Bass10 of 99
  • Lake Whitefish8 of 99
  • Burbot6 of 99
  • Pumpkinseed6 of 99
  • Lake Trout2 of 99
  • White Bass2 of 99
  • Black Crappie1 of 99
  • Largemouth Bass1 of 99
Forage fish and other species (14)

Forage fish

  • Trout-Perch 21
  • Spottail Shiner 17
  • Common Shiner 9
  • Rainbow Smelt 9
  • Logperch 6
  • Emerald Shiner 4
  • Blacknose Shiner 1
  • Brook Stickleback 1
  • Mottled Sculpin 1

Other

  • White Sucker 54
  • Brown Bullhead 13
  • Greater Redhorse 4
  • Longnose Gar 3
  • Silver Lamprey 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 14 species from Lake Nipissing. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Freshwater Drum45-50 cm44PFAS
Lake Whitefish45-50 cm44PFAS
Muskellunge>75 cm4Do not eatMercury
Northern Pike55-60 cm44PFAS
Rock Bass15-20 cm84PFAS
Smallmouth Bass35-40 cm2Do not eatPFAS
Walleye40-45 cm2Do not eatPFAS
White Bass30-35 cm1Do not eatPFAS
Yellow Perch20-25 cm44PFAS
Brown Bullhead25-30 cm1212PFAS
Burbot (Ling)50-55 cm2Do not eatPFAS
Cisco (Lake Herring)30-35 cm44PFAS
Rainbow Smelt15-20 cm44PFAS
White Sucker40-45 cm44PFAS

* 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 11. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 23 years between 1997 and 2025; the latest annual mean is 2.8 m.

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

Getting on the water

18 listed boat launches; 7 with parking listed. marks launches on the map.

East end

11 more on the east end

West end

Photos

Lake Nipissing viewed from a lookout in North Bay, Ontario
Photo: Wiki.cullin, CC BY-SA 4.0, via Wikimedia Commons
Lake Nipissing
Photo: Hayden Soloviev, CC BY 4.0, via Wikimedia Commons
Les îles Manitou (lac Nipissing, Ontario, Canada) vues depuis North Bay
Photo: Lenotchkamm, CC BY-SA 4.0, via Wikimedia Commons