Lake Rosseau at Port Carling water level

Name: Lake Rosseau at Port Carling water level (Environment and Climate Change Canada – Water Survey of Canada)
Creator: Environment and Climate Change Canada – Water Survey of Canada
License: https://open.canada.ca/en/open-government-licence-canada

Lake, Lake Rosseau, Ontario, Canada

Directions

Low for mid-October

Water level

8.79m Steady over the last 24 hours

Measured Oct 19, 2026, 05:40 PM EDT (30 min ago)

History

7 days 30 days 10 years Years compared

202020212022202320242026

Water level Normal range (10–90 %)

What this means

Water is short at Lake Rosseau at Port Carling: the latest reading of 8.79 m is below normal for mid-October.

The median for mid-October is 8.83 m, based on 11 years of readings, so the water level is 0.04 m below typical.

It has barely moved over the past 24 hours. The 30-day range is 8.76 m – 8.87 m.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 11 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 8.83 m0.04 m below the median for this date
Normal for this date: 8.76 m – 8.90 m8 years in 10 fall in this range (11 years of records)
Lowest and highest in 30 days: 8.76 m – 8.87 m
Lowest and highest in 12 months: 8.76 m – 8.89 m

Boating and fishing at Lake Rosseau at Port Carling

At low levels, launching can mean a long walk or a closed ramp, and shallow points stick out further than charts suggest.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:40 AM Sunset 06:28 PM Daylight 10 hr, 48 min First quarter 62%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Lake Muskoka at BeaumarisLake, Lake Muskoka	9.33 m	Normal	±0	8.5 km
Bala Bay at BalaRiver gauge, Bala Bay	225.19 m	Normal	±0	12 km
Moon River at Highway No. 400River gauge, Moon River	0.93 m	Low	+0.01 m	18 km
Musquash River at Highway No. 400River gauge, Musquash River	8.71 m	Very low	−0.77 m	19 km
Go Home Lake near Potters LandingLake, Go Home Lake	185.22 m	Normal	+0.02 m	25 km
North Branch Muskoka River at Port SydneyRiver gauge, North Branch Muskoka River	0.77 m	Low	−0.08 m	26 km
Mary Lake at Port SydneyLake, Mary Lake	8.47 m	Normal	−0.01 m	26 km
South Branch Muskoka River at BaysvilleRiver gauge, South Branch Muskoka River	7.43 m	Very low	−0.08 m	36 km

Questions and answers

What is a normal level for Lake Rosseau at Port Carling in mid-October?

The median for mid-October is 8.83 m. In 8 years out of 10 the reading falls between 8.76 m and 8.90 m, based on 11 years of records.

What is the water level of Lake Rosseau at Port Carling today?

On Oct 19, 2026, 05:40 PM EDT, the water level was 8.79 m. Steady over the last 24 hours.

Is Lake Rosseau at Port Carling rising or falling?

Steady over the last 24 hours. Up 0.03 m over the last 7 days.

Is the level of Lake Rosseau at Port Carling normal?

Low for mid-October. Compared with 11 years of daily readings for this time of year.

How often is this data updated?

Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment and Climate Change Canada – Water Survey of Canada
Station code: eccc:02EB020 (Agency page)
Coordinates: 45.12008, -79.57650 (WGS84)
Vertical datum: station datum (assumed datum)
Update interval: every hour
Licence: Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	8.79 m	2026-10-19 21:40	Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

<iframe src="https://nivelmap.com/embed/19599?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Lake Rosseau at Port Carling water level"></iframe>

How to cite

Environment and Climate Change Canada – Water Survey of Canada: Lake Rosseau at Port Carling (eccc:02EB020). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/lake-rosseau-at-port-carling

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer