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Rouge River near Markham water level

River gauge, Rouge River, Ontario, Canada

Directions

Normal for mid-October

Water level

3.33m Down 0.03 m over the last 24 hours

Flow
0.99 m³/s
3.3 3.4 3.5

History

3.33.43.5mOct 11Oct 12Oct 14Oct 16Oct 183.33.43.5mOct 11Oct 14Oct 18
3.33.43.53.6mSep 18Sep 25Oct 3Oct 10Oct 183.33.43.53.6mSep 18Oct 3Oct 18
Water level Normal range (10–90 %)

What this means

The gauge at Rouge River near Markham reads 3.33 m, a normal level for mid-October.

That puts it 0.01 m below the median of 3.34 m for mid-October, based on 20 years of readings.

The level is falling, down 0.03 m over the past 24 hours. Over the past 30 days it has moved between 3.29 m and 3.59 m.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 20 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3.34 m0.01 m below the median for this date
Normal for this date
3.29 m – 3.49 m8 years in 10 fall in this range (20 years of records)
Lowest and highest in 30 days
3.29 m – 3.59 m
Lowest and highest in 12 months
3.29 m – 3.45 m

Conditions at Rouge River near Markham

Paddlers should check the trend as well as the level; summer storms can raise rivers quickly.

Flood advisories come from the provincial river forecast centre.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:36 AM Sunset 06:30 PM Daylight 10 hr, 54 min First quarter 46%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Little Rouge Creek near Locust HillRiver gauge, Little Rouge Creek 10.24 m Normal ±0 5.7 km
West Duffins Creek above Green RiverRiver gauge, West Duffins Creek 2.19 m Low −0.02 m 7.7 km
Little Rouge Creek near Dicksons HillRiver gauge, Little Rouge Creek 5.14 m Very high −0.01 m 8.4 km
Highland Creek near West HillRiver gauge, Highland Creek 5.98 m Low −0.02 m 9.5 km
West Highland Creek near Scarborough VillageRiver gauge, West Highland Creek 2.39 m Low −0.03 m 12 km
Duffins Creek at AjaxRiver gauge, Duffins Creek 0.78 m Normal −0.02 m 14 km
Don River East Branch near ThornhillRiver gauge, Don River East Branch 2.03 m Low −0.01 m 17 km
Don River West Branch at York MillsRiver gauge, Don River West Branch 0.58 m Normal −0.06 m 19 km

Questions and answers

What is a normal level for the Rouge River near Markham in mid-October?

The median for mid-October is 3.34 m. In 8 years out of 10 the reading falls between 3.29 m and 3.49 m, based on 20 years of records.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 3.33 m on the gauge does not mean the water is that deep.

What is the water level of Rouge River near Markham today?

On Oct 17, 2026, 10:45 PM EDT, the water level was 3.33 m. Down 0.03 m over the last 24 hours.

Is Rouge River near Markham rising or falling?

Down 0.03 m over the last 24 hours. Up 0.04 m over the last 7 days.

Is the level of Rouge River near Markham normal?

Normal for mid-October. Compared with 20 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:02HC022 (Agency page)
Coordinates
43.85836, -79.23356 (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

ParameterLast valueTime (UTC)Quality
Water level 3.33 m 2026-10-18 02:45 Provisional
Flow 0.99 m³/s 2026-10-18 02:45 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Rouge River near Markham (eccc:02HC022). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/rouge-river-near-markham

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