St. George Lake
43.9572° N, 79.4269° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)St. George Lake, Ontario. 43.9572° N, 79.4269° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/st-george-lake-near-toronto/, 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.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. 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).
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
St. George Lake covers 0.1 km², making it smaller than 100% of the 18,731 lakes in Ontario. It lies beside Wilcox Lake.
Government surveys have recorded 14 fish species here, including bluegill, pumpkinseed and rock bass.
- Area
- 0.1 km²
- smaller than 100% of the 18,731 lakes in Ontario
- Shoreline
- 1.8 km
- shorter than 95% of the 18,731 lakes in Ontario
- Water clarity
- 2.3 mSecchi depth, 2003
- less clear than 80% of the 1,251 monitored lakes in Ontario
- Fish species
- 14
- more than 86% of the 2,454 surveyed lakes in Ontario
- Elevation
- 297 m
Today on the water
7.9 °C
Observed at Richmond Hill, as of 4:00 a.m. EDT
calm Estimated waves, next 12 hours: up to 0.1 m. Around 5 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 5 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/h | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |||
| Temp. °C | 5 | 8 | 13 | 17 | 18 | 12 | 8 | 5 |
| Precip. % | 20 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
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 5.
Weather: Richmond Hill (local forecast), as of 4:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:56 a.m.
- Sunrise
- 7:25 a.m.
- Sunset
- 6:44 p.m.
- Civil dusk
- 7:12 p.m.
- Moonrise
- 6:17 a.m.
- Moonset
- 6:02 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Newmarket, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 15 government surveys (1968–1995) that recorded them.
Forage fish and other species (7)
Forage fish
- Golden Shiner 11
- Banded Killifish 6
- Iowa Darter 6
- Central Mudminnow 4
- Bluntnose Minnow 2
Other
- Brown Bullhead 13
- White Sucker 1
Numbers are the surveys that recorded each species.
Fishing regulations: Fisheries Management Zone 16. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 4 years between 1995 and 2003; the latest annual mean is 2.3 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.