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Map of Green Lake with depth contours

Green Lake

43.8394° N, 80.0083° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Green Lake, Ontario. 43.8394° N, 80.0083° W

Maximum depth 12.2 m. Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/green-lake-near-brampton/, compiled October 9, 2026

  • Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
  • HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
  • Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
  • Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).

Green Lake is 12.2 m deep at its deepest point, shallower than 65% of the 2,688 surveyed lakes in Ontario. It covers 0.13 km² and lies 2.7 km south of Caledon Village.

Government surveys have recorded 4 fish species here, including pumpkinseed and smallmouth bass.

Maximum depth
12.2 m
shallower than 65% of the 2,688 surveyed lakes in Ontario
Area
0.13 km²
smaller than 93% of the 18,731 lakes in Ontario
Shoreline
2.8 km
shorter than 77% of the 18,731 lakes in Ontario
Fish species
4
fewer than 51% of the 2,454 surveyed lakes in Ontario
Elevation
398 m

Today on the water

3.7 °C

Wind W 3 km/h

Observed at Orangeville, 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.

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 10var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.10.20.2
Temp. °C471215161075
Precip. %2020202020000

Tonight: Partly cloudy with 40 percent chance of showers this evening. Clearing overnight. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.

Weather: Orangeville (local forecast), as of 4:03 a.m. EDT

Sun and moon

Civil dawn
6:58 a.m.
Sunrise
7:27 a.m.
Sunset
6:46 p.m.
Civil dusk
7:15 p.m.
Moonrise
6:19 a.m.
Moonset
6:05 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Brampton, as of 4:00 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

67% of Green Lake is shallower than 3 m, and 26% is deeper than 5 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 12.2 m, drawn from 6 depth contours.

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

Fish

Sport fish by the share of the 10 government surveys (2006–2006) that recorded them.

  • Pumpkinseed10 of 10
  • Smallmouth Bass6 of 10
Other species (2)
  • Brown Bullhead 6
  • White Sucker 6

Numbers are the surveys that recorded each species.

Fishing regulations: Fisheries Management Zone 16. Check seasons and limits before you fish.