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Grand River at Galt water level

River gauge, Grand River, Ontario, Canada

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Right now

Low for mid-October

Water level

0.71m Down 0.01 m over the last 24 hours

Flow
15.6 m³/s
0.6 0.8 0.9 1.0

History

History
0.81.0mOct 11Oct 13Oct 15Oct 16Oct 180.81.0mOct 11Oct 15Oct 18
0.81.0mSep 18Sep 26Oct 3Oct 11Oct 180.81.0mSep 18Oct 3Oct 18
12mOct 2025Jan 2026Apr 2026Jul 2026Oct 202612mOct 2025Apr 2026Oct 2026
12mJanMarMayJulSepNov202612mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

Low water at Grand River at Galt: the gauge reads 0.71 m, below normal for mid-October.

That puts it 0.05 m below the median of 0.76 m for mid-October, based on 21 years of readings. A year ago it stood at 0.65 m (+0.06 m).

It is still going down, by 0.01 m over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 0.68 m – 0.98 m.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
0.76 m0.05 m below the median for this date
Normal for this date
0.66 m – 1.06 m8 years in 10 fall in this range (21 years of records)
Same day last year
0.65 m+0.06 m
Lowest and highest in 30 days
0.68 m – 0.98 m
Lowest and highest in 12 months
0.63 m – 1.35 m

Freshet, ice and paddling

Open-water season is the time for canoe trips and fishing, though rapids change character with every few centimetres of water.

Flood advisories come from the provincial river forecast centre.

About the Grand River

Grand River (Ontario)

The Grand River, formerly known as the River Ouse, is a large river in Ontario, Canada. It lies along the western fringe of the Greater Golden Horseshoe region of Ontario which overlaps the eastern portion of southwestern Ontario, sometimes referred to as Midwestern Ontario, along the length of this river. From its source near Wareham, Ontario, it flows south through Grand Valley, Fergus, Elora, Waterloo, Kitchener, Cambridge, Paris, Brantford, Ohsweken, Six Nations of the Grand River, Caledonia, and Cayuga before emptying into the north shore of Lake Erie south of Dunnville at Port Maitland. One of the scenic features of the river is the falls and Gorge at Elora.

Read more on Wikipedia

Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:39 AM Sunset 06:35 PM Daylight 10 hr, 56 min First quarter 51%

Map

Other gauges on the Grand River

Gauge Level Compared with normal 24 hours Distance
Grand River near DoonRiver gauge, Grand River 4.02 m Low ±0 11 km
Grand River at BrantfordRiver gauge, Grand River 0.26 m Normal ±0 25 km
Grand River at West MontroseRiver gauge, Grand River 11.11 m Low ±0 29 km
Grand River below Shand DamRiver gauge, Grand River 1.54 m Low ±0 42 km
Grand River near MarsvilleRiver gauge, Grand River 3.31 m Low ±0 57 km
Grand River near DundalkRiver gauge, Grand River 1.66 m Very high ±0 88 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Speed River at CambridgeRiver gauge, Speed River 0.65 m Normal −0.01 m 7.8 km
Alder Creek near New DundeeRiver gauge, Alder Creek 12.88 m Normal ±0 19 km
Spencer Creek near WestoverRiver gauge, Spencer Creek 13.99 m Very high ±0 19 km
Speed River below GuelphRiver gauge, Speed River 0.61 m Normal −0.01 m 21 km
Laurel Creek at WaterlooRiver gauge, Laurel Creek 2.89 m Low −0.01 m 21 km
Nith River near CanningRiver gauge, Nith River 3.17 m Low −0.01 m 21 km
Spencer Creek at Highway No. 5River gauge, Spencer Creek 0.54 m Normal −0.01 m 23 km
Eramosa River above GuelphRiver gauge, Eramosa River 8.57 m Low ±0 24 km

Questions and answers

How does the Grand River at Galt compare with last year?

It is 0.06 m higher than on the same day last year, when the reading was 0.65 m.

What is a normal level for the Grand River at Galt in mid-October?

The median for mid-October is 0.76 m. In 8 years out of 10 the reading falls between 0.66 m and 1.06 m, based on 21 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 0.71 m on the gauge does not mean the water is that deep.

What is the water level of Grand River at Galt today?

On Oct 18, 2026, 12:15 PM EDT, the water level was 0.71 m. Down 0.01 m over the last 24 hours.

Is Grand River at Galt rising or falling?

Down 0.01 m over the last 24 hours. Up 0.03 m over the last 7 days.

Is the level of Grand River at Galt normal?

Low for mid-October. Compared with 21 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.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment and Climate Change Canada – Water Survey of Canada
Station code
eccc:02GA003 (Agency page)
Coordinates
43.35311, -80.31575 (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 0.71 m 2026-10-18 16:15 Provisional
Flow 15.6 m³/s 2026-10-18 16:00 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Grand River at Galt (eccc:02GA003). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/grand-river-at-galt

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.