Map of Clear Lake with depth contours

Clear Lake

44.5148° N, 78.193° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Clear Lake is 13 m deep at its deepest point, shallower than 59% of the 2,688 surveyed lakes in Ontario. It covers 11.3 km² and lies beside Young's Point.

Government surveys have recorded 7 fish species here, including smallmouth bass, pumpkinseed and rock bass.

Maximum depth
13 m
shallower than 59% of the 2,688 surveyed lakes in Ontario
Area
11.3 km²
larger than 96% of the 18,731 lakes in Ontario
Shoreline
35.5 km
longer than 94% of the 18,731 lakes in Ontario
Water clarity
3.7 mSecchi depth, 2025
clearer than 54% of the 1,251 monitored lakes in Ontario
Fish species
7
more than 61% of the 2,454 surveyed lakes in Ontario
Elevation
232 m

Today on the water

5.2 °C

CloudyWind WSW 9 km/h

Observed at Peterborough, as of 6:00 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
Time7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.
Wind km/hW 15W 15NW 30NW 30NW 15var. 5var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.30.30.2
Temp. °C610141611631
Precip. %4040402020000

Today: A mix of sun and cloud. 40 percent chance of showers this morning and early this afternoon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 16. UV index 4 or moderate.

Weather: Peterborough (local forecast), as of 6:01 a.m. EDT

Sun and moon

Civil dawn
6:51 a.m.
Sunrise
7:20 a.m.
Sunset
6:38 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:12 a.m.
Moonset
5:57 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Peterborough, as of 5:00 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

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 13 m, drawn from 160 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 8 government surveys (2008–2008) that recorded them.

  • Smallmouth Bass8 of 8
  • Pumpkinseed6 of 8
  • Rock Bass5 of 8
  • Walleye5 of 8
  • Yellow Perch5 of 8
  • Bluegill3 of 8
  • Cisco1 of 8

Eating your catch

The provincial guide to eating fish (2026) sets limits for 7 species from Clear Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Black Crappie20-25 cm1212PFAS
Bluegill15-20 cm1616PFAS
Largemouth Bass30-35 cm84PFAS
Smallmouth Bass35-40 cm84PFAS
Walleye40-45 cm88PFAS
Yellow Perch20-25 cm1616PFAS
White Sucker40-45 cm1212PFAS

* 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 17. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 26 years between 1996 and 2025; the latest annual mean is 3.7 m.

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