LakeScout
Satellite view of Lake Muskoka

Lake Muskoka

Normal

Water level is right where you'd expect for mid-September and falling.

Low (9.30m)Normal rangeHigh (9.50m)

Current Weather

2d ago
19°CMainly Sunny
Wind N 9 km/h
Humidity 54%

A mix of sun and cloud

Environment Canada — Parry Sound - Muskoka

vs. Last Year

No data available

7-Day Trend

↓Falling

Down 3.3 cm over the past week

-3.3 cm over 7 days

Seasonal Position

31st percentile

Based on 22 years of records

Seasonal Outlook

Typical next 7 days

This lake usually holds steady over the next week.

Typical next 14 days

Over two weeks, levels typically drops moderately.

Tracking

This year is moving slower than usual.

Based on 22 years of seasonal patterns. Moderate historical coverage. This is a historical seasonal pattern, not a forecast.

Fish Consumption Advisories (10 species)

The following consumption advisories are in effect for fish caught in Lake Muskoka.

Black Crappie
ContaminantSizeGeneral pop.Sensitive pop.
Mercury25-30 cm—8/month
Mercury, PFAS25-30 cm16/month—
Brown Bullhead
ContaminantSizeGeneral pop.Sensitive pop.
Mercury35-40 cm—8/month
Mercury30-35 cm—12/month
Mercury, PFAS25-30 cm—16/month
Mercury, PFAS35-40 cm16/month—
PFAS25-30 cm16/month—
PFAS30-35 cm16/month—
Cisco (Lake Herring)
ContaminantSizeGeneral pop.Sensitive pop.
Mercury30-35 cm—4/month
Mercury25-30 cm—12/month
Mercury35-40 cm8/month4/month
Mercury, PFAS30-35 cm16/month—
Mercury, PFAS25-30 cm16/month—
⚠Lake Trout
ContaminantSizeGeneral pop.Sensitive pop.
Mercury60-65 cm2/monthDo not eat
Mercury65-70 cm2/monthDo not eat
Mercury70-75 cm—Do not eat
Mercury40-45 cm8/month4/month
Mercury45-50 cm4/monthDo not eat
Mercury50-55 cm4/monthDo not eat
Mercury55-60 cm4/monthDo not eat
Mercury20-25 cm—8/month
Mercury25-30 cm—8/month
Mercury30-35 cm12/month4/month
Mercury35-40 cm12/month4/month
Mercury, PCB>75 cmDo not eatDo not eat
Mercury, PCB70-75 cm2/month—
Mercury, PFAS25-30 cm16/month—
Mercury, PFAS20-25 cm16/month—
Lake Whitefish
ContaminantSizeGeneral pop.Sensitive pop.
Mercury55-60 cm16/month8/month
Mercury60-65 cm16/month4/month
⚠Northern Pike
ContaminantSizeGeneral pop.Sensitive pop.
Mercury65-70 cm8/month4/month
Mercury50-55 cm12/month4/month
Mercury55-60 cm8/month4/month
Mercury60-65 cm8/month4/month
Mercury70-75 cm4/monthDo not eat
Mercury>75 cmDo not eatDo not eat
Mercury30-35 cm—8/month
Mercury35-40 cm—4/month
Mercury40-45 cm—4/month
Mercury45-50 cm—4/month
Mercury, PFAS45-50 cm16/month—
Mercury, PFAS40-45 cm16/month—
Mercury, PFAS35-40 cm16/month—
Mercury, PFAS30-35 cm16/month—
⚠Rock Bass
ContaminantSizeGeneral pop.Sensitive pop.
Mercury15-20 cm12/month4/month
Mercury20-25 cm4/monthDo not eat
⚠Smallmouth Bass
ContaminantSizeGeneral pop.Sensitive pop.
Mercury25-30 cm12/month4/month
Mercury30-35 cm4/monthDo not eat
Mercury35-40 cm4/monthDo not eat
Mercury40-45 cm2/monthDo not eat
Mercury45-50 cmDo not eatDo not eat
Mercury15-20 cm—8/month
Mercury20-25 cm—8/month
Mercury, PFAS15-20 cm16/month—
Mercury, PFAS20-25 cm16/month—
⚠Walleye
ContaminantSizeGeneral pop.Sensitive pop.
Mercury>75 cmDo not eatDo not eat
Mercury40-45 cm8/monthDo not eat
Mercury45-50 cm4/monthDo not eat
Mercury50-55 cm4/monthDo not eat
Mercury55-60 cm4/monthDo not eat
Mercury60-65 cm2/monthDo not eat
Mercury65-70 cm2/monthDo not eat
Mercury70-75 cmDo not eatDo not eat
Mercury35-40 cm8/month4/month
Mercury20-25 cm—8/month
Mercury25-30 cm—8/month
Mercury30-35 cm—8/month
Mercury, PFAS20-25 cm16/month—
Mercury, PFAS25-30 cm16/month—
Mercury, PFAS30-35 cm16/month—
Yellow Perch
ContaminantSizeGeneral pop.Sensitive pop.
Mercury20-25 cm8/month4/month
Mercury15-20 cm16/month4/month
Source: Guide to Eating Ontario Fish (2025). Advisory data is updated annually.

Lake Profile

Est. average depth20.4 m

Estimated from HydroLAKES v1.0 (Messager et al., 2016). Modeled geo-statistical estimate, not a direct survey measurement.

Boat Launches (14)
Lake Muskoka - Milford Bay
1.3 kmMunicipalParking
Map ↗
Church Dock Road, Milford Bay, Lake Muskoka
2.2 kmMunicipalParking
Map ↗
Leonard Lake
4.2 kmMunicipalParking
Map ↗
Lake Muskoka
4.7 kmPrivateParking
Map ↗
Brandy Lake
5.4 kmMunicipalParking
Map ↗
Ann Street, Walkers Point, Lake Muskoka
5.8 kmMunicipal
Map ↗
Lake Muskoka - Bailey Street, Port Carling
8.3 kmMunicipalParking
Map ↗
Lake Muskoka - West St., Port Carling
8.6 kmMunicipal
Map ↗
Lake Muskoka
8.7 kmPrivate
Map ↗
Lake Muskoka - Whitings Road
8.8 kmMunicipal
Map ↗
Lake Muskoka
9.1 kmPrivateParking
Map ↗
Lake Muskoka - George Road
9.6 kmMunicipalParking
Map ↗
Lake Rosseau - Adams Bay
9.6 kmMunicipalParking
Map ↗
Lake Rosseau - Portage Bay
9.9 kmMunicipal
Map ↗

Source: Ontario MNR Fishing Access Points. Verify conditions before visiting.

Water Level — Last 30 Days

Technical details
Current level
9.38 m
Reference value
9.39 m (rolling_6h_mean)
Percentile for date
31st percentile
Years of record
22
Source station
LAKE MUSKOKA AT BEAUMARIS (02EB018)
Est. average depth
20.4 m
Relationship type
direct_lake
Mapping confidence
medium
Today's normal range
9.38–9.42 m
Same-date historical range
9.30–9.50 m
30-day change
-4.3 cm
Data confidence
medium
Observed at
Sep 20, 2026
Last snapshot
Sep 20, 2026

Data source: ECCC Water Office — Station 02EB018. Water level readings are provisional and subject to revision. This is not a navigation or flood-warning service.