Nivelmap
EN

Severn River at Outlet of Deer Lake water level

River gauge, Severn River, Ontario, Canada

Directions

Right now

Low for mid-October

Water level

28.33m Down 0.01 m over the last 24 hours

28.3 28.5 28.8

History

History
28.228.428.628.8mOct 13Oct 15Oct 17Oct 18Oct 2028.228.428.628.8mOct 13Oct 17Oct 20
28.328.528.829.0mSep 20Sep 28Oct 5Oct 13Oct 2028.328.528.829.0mSep 20Oct 5Oct 20
282930mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026282930mOct 2025Apr 2026Oct 2026
282930mJanMarMayJulSepNov2026282930mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

The Severn River at Outlet of Deer Lake is running below normal at 28.33 m.

The median for mid-October is 28.47 m, based on 16 years of readings, so the water level is 0.14 m below typical. On the same day last year the reading was 28.44 m, a difference of −0.11 m.

It has dropped 0.01 m over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 28.33 m and 28.48 m.

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

Compared with 16 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
28.47 m0.14 m below the median for this date
Normal for this date
28.24 m – 28.83 m8 years in 10 fall in this range (16 years of records)
Same day last year
28.44 m−0.11 m
Lowest and highest in 30 days
28.33 m – 28.48 m
Lowest and highest in 12 months
28.33 m – 28.50 m

On the river

Outside the spring freshet, most rivers settle into a gentler pattern, broken by storms.

Flood advisories come from the provincial river forecast centre.

About the Severn River

Severn River (Hudson Bay)

The Severn River is a river in northern Ontario. The northern Ontario river has its headwaters near the western border of the province. From the head of the Black Birch River, the Severn River is 982 km (610 mi) long, tying it with the Albany River for the title of longest river entirely in Ontario. Its drainage basin area is 102,800 km2 (39,700 sq mi), a small portion of which is in Manitoba. Its source is Deer Lake and flows northeasterly into Severn Lake, then by a second section to Hudson Bay where it ends at Fort Severn.

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 07:51 AM Sunset 06:12 PM Daylight 10 hr, 20 min Waxing gibbous 70%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Flanagan River at Outlet of North Spirit LakeRiver gauge, Flanagan River 28.18 m Low +0.01 m 65 km

Questions and answers

Is the Severn River at Outlet of Deer Lake higher than last year?

No, it is 0.11 m lower than on the same day last year, when the reading was 28.44 m.

What is a normal level for the Severn River at Outlet of Deer Lake in mid-October?

The median for mid-October is 28.47 m. In 8 years out of 10 the reading falls between 28.24 m and 28.83 m, based on 16 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 28.33 m on the gauge does not mean the water is that deep.

What is the water level of Severn River at Outlet of Deer Lake today?

On Oct 20, 2026, 12:25 PM CDT, the water level was 28.33 m. Down 0.01 m over the last 24 hours.

Is Severn River at Outlet of Deer Lake rising or falling?

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

Is the level of Severn River at Outlet of Deer Lake normal?

Low for mid-October. Compared with 16 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:04CA004 (Agency page)
Coordinates
52.67395, -93.99134 (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 28.33 m 2026-10-20 17:25 Provisional

Download

Embed this gauge

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

How to cite

Environment and Climate Change Canada – Water Survey of Canada: Severn River at Outlet of Deer Lake (eccc:04CA004). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/severn-river-at-outlet-of-deer-lake

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.