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Fleuve Saint-Laurent à Lanoraie water level

River gauge, Fleuve Saint-Laurent, Québec, Canada

Directions

Right now

Normal for mid-October

Surface elevation

4.30m Down 0.11 m over the last 24 hours

4.0 4.5 5.0

History

History
4.04.55.0mOct 11Oct 13Oct 15Oct 16Oct 184.04.55.0mOct 11Oct 15Oct 18
4.04.55.0mSep 18Sep 26Oct 3Oct 11Oct 184.04.55.0mSep 18Oct 3Oct 18
4567mOct 2025Jan 2026Apr 2026Jul 2026Oct 20264567mOct 2025Apr 2026Oct 2026
46mJanMarMayJulSepNov202646mJanAprJulOct2026

20252026

Surface elevation Normal range (10–90 %)

What this means

The gauge at Fleuve Saint-Laurent à Lanoraie reads 4.30 m, a normal level for mid-October.

That puts it 0.23 m below the median of 4.53 m for mid-October, based on 21 years of readings. A year ago it stood at 3.76 m (+0.55 m).

The level is falling, down 0.11 m over the past 24 hours. Over the past 30 days it has moved between 4.00 m and 4.66 m.

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

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

Key numbers

Median for this date
4.53 m0.23 m below the median for this date
Normal for this date
3.97 m – 5.01 m8 years in 10 fall in this range (21 years of records)
Same day last year
3.76 m+0.55 m
Lowest and highest in 30 days
4.00 m – 4.66 m
Lowest and highest in 12 months
3.77 m – 4.63 m

Conditions at Fleuve Saint-Laurent à Lanoraie

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.

About the Fleuve Saint-Laurent

St. Lawrence River

The St. Lawrence River is a large international river in the middle latitudes of North America connecting the Great Lakes with the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawrence, traversing Ontario and Quebec in Canada and New York in the United States. A portion of the river demarcates the Canada–United States border.

Read more on Wikipedia

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

Weather at the gauge

Rain in the last 3 days: 21 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 12° 1° – Wind 24 km/h
19 Mon 14° 7° – Wind 24 km/h
20 Tue 14° 5° – Wind 17 km/h
21 Wed 11° 1° – Wind 12 km/h
22 Thu 14° 3° – Wind 25 km/h
23 Fri 9° 2° – Wind 21 km/h
24 Sat 10° 0° – Wind 14 km/h

Forecast: Open-Meteo

Sunrise 07:14 AM Sunset 06:03 PM Daylight 10 hr, 49 min First quarter 51%

Map

Other gauges on the Fleuve Saint-Laurent

Gauge Level Compared with normal 24 hours Distance
Fleuve Saint-Laurent à LasalleRiver gauge, Fleuve Saint-Laurent 1.03 m Normal −0.10 m 68 km
Fleuve Saint-Laurent à Pointe-Des-CascadesRiver gauge, Fleuve Saint-Laurent 21.15 m Normal −0.09 m 91 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Rivière des Mille îles à Bois-Des-FilionRiver gauge, Rivière des Mille îles 0.94 m Normal −0.01 m 53 km
Rivière Richelieu aux Rapides FryersRiver gauge, Rivière Richelieu 0.77 m Normal +0.13 m 62 km
Lac Saint-Louis à Pointe-ClaireLake, Lac Saint-Louis 21.06 m Normal −0.11 m 76 km
Rivière des Outaouais à la Marina de Sainte-Anne-De-BellevueRiver gauge, Rivière des Outaouais 21.03 m Normal −0.10 m 84 km
Rivière des Outaouais à Sainte-Anne-De-BellevueRiver gauge, Rivière des Outaouais 21.53 m Low −0.07 m 84 km
Rivière des Outaouais à Terrasse-VaudreuilRiver gauge, Rivière des Outaouais 21.50 m Low −0.07 m 88 km

Questions and answers

How does the Fleuve Saint-Laurent à Lanoraie compare with last year?

It is 0.55 m higher than on the same day last year, when the reading was 3.76 m.

What is a normal level for the Fleuve Saint-Laurent à Lanoraie in mid-October?

The median for mid-October is 4.53 m. In 8 years out of 10 the reading falls between 3.97 m and 5.01 m, based on 21 years of records.

Is Fleuve Saint-Laurent à Lanoraie really 4.30 m deep?

No. 4.30 m is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Fleuve Saint-Laurent à Lanoraie today?

On Oct 18, 2026, 12:35 PM EDT, the surface elevation was 4.30 m. Down 0.11 m over the last 24 hours.

Is Fleuve Saint-Laurent à Lanoraie rising or falling?

Down 0.11 m over the last 24 hours. Up 0.21 m over the last 7 days.

Is the level of Fleuve Saint-Laurent à Lanoraie normal?

Normal 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:02OB011 (Agency page)
Coordinates
45.95941, -73.21459 (WGS84)
Vertical datum
SERVICE GEODESIQUE DU CANADA
Update interval
every hour
Licence
Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 4.30 m 2026-10-18 16:35 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Fleuve Saint-Laurent à Lanoraie (eccc:02OB011). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/quebec/fleuve-saint-laurent-a-lanoraie

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.