Map of Rebecca Lake

Rebecca Lake

45.4292° N, 79.0399° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Rebecca Lake covers 2.19 km², making it larger than 82% of the 18,731 lakes in Ontario. It lies beside Brooks Mill.

Government surveys have recorded 2 fish species here: lake trout and creek chub.

Area
2.19 km²
larger than 82% of the 18,731 lakes in Ontario
Shoreline
13.3 km
longer than 81% of the 18,731 lakes in Ontario
Water clarity
3.9 mSecchi depth, 2025
clearer than 58% of the 1,251 monitored lakes in Ontario
Fish species
2
fewer than 60% of the 2,454 surveyed lakes in Ontario
Elevation
355 m

Today on the water

4.1 °C

Wind calm

Observed at Oxtongue Lake, 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.) m0.10.10.30.30.1
Temp. °C371113104-1-3
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 13. UV index 4 or moderate.

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

Sun and moon

Civil dawn
6:55 a.m.
Sunrise
7:24 a.m.
Sunset
6:41 p.m.
Civil dusk
7:10 p.m.
Moonrise
6:16 a.m.
Moonset
5:59 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Dorset, 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.

Fish

  • Lake TroutStocked
Forage fish and other species (1)
  • Creek Chub 1

Numbers are the surveys that recorded each species.

Stocking

Lake Trout2,400 fish in 5 years, most recently 2024

All stocking records (5)
YearSpeciesFishStage
2024Lake Trout400Yearlings
2022Lake Trout500Yearlings
2020Lake Trout500Yearlings
2018Lake Trout500Yearlings
2016Lake Trout500Yearlings

Eating your catch

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

SpeciesLengthGeneral populationSensitive population*Contaminant
Brook Trout30-35 cm124Mercury
Lake Trout50-55 cm84Mercury
Smallmouth Bass35-40 cm4Do not eatMercury

* 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 15. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 33 years between 1992 and 2025; the latest annual mean is 3.9 m.

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