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Missinaibi River at Mattice water level

River gauge, Missinaibi River, Ontario, Canada

Directions

Right now

Low for mid-October

Water level

0.28m Up 0.04 m over the last 24 hours

Flow
16.8 m³/s
0.0 0.5 1.0 1.5

History

History
0.51.01.5mOct 11Oct 13Oct 15Oct 17Oct 180.51.01.5mOct 11Oct 15Oct 18
0.51.01.5mSep 18Sep 26Oct 3Oct 11Oct 180.51.01.5mSep 18Oct 3Oct 18
-02mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026-02mOct 2025Apr 2026Oct 2026
-02mJanMarMayJulSepNov2026-02mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

At 0.28 m, the Missinaibi River at Mattice is below normal for mid-October.

The median for mid-October is 0.48 m, based on 21 years of readings, so the water level is 0.20 m below typical. On the same day last year the reading was 0.34 m, a difference of −0.06 m.

The water is rising: up 0.04 m over the past 24 hours. Over the past 30 days it has moved between 0.13 m and 0.28 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
0.48 m0.20 m below the median for this date
Normal for this date
0.16 m – 1.54 m8 years in 10 fall in this range (21 years of records)
Same day last year
0.34 m−0.06 m
Lowest and highest in 30 days
0.13 m – 0.28 m
Lowest and highest in 12 months
0.14 m – 0.75 m

Conditions at Missinaibi River at Mattice

Low water means shallow riffles on canoe trips and warmer water for fish.

Flood advisories come from the provincial river forecast centre.

About the Missinaibi River

Missinaibi River

The Missinaibi River is a river in northern Ontario, Canada, which flows northeast from Missinaibi Lake, north of Chapleau, and empties into the Moose River, which drains into James Bay. This river is 755 kilometres (469 mi) in length. It is one of the longest free-flowing and undeveloped rivers in Ontario.

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 08:00 AM Sunset 06:38 PM Daylight 10 hr, 38 min First quarter 53%

Map

Other gauges on the Missinaibi River

Gauge Level Compared with normal 24 hours Distance
Missinaibi River below Waboose RiverRiver gauge, Missinaibi River 24.63 m Normal +0.04 m 137 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Mattawishkwia River at HearstRiver gauge, Mattawishkwia River 4.98 m Normal +0.04 m 29 km
Kapuskasing River at KapuskasingRiver gauge, Kapuskasing River 4.65 m Normal −0.07 m 64 km

Questions and answers

Is the Missinaibi River at Mattice higher than last year?

No, it is 0.06 m lower than on the same day last year, when the reading was 0.34 m.

What is a normal level for the Missinaibi River at Mattice in mid-October?

The median for mid-October is 0.48 m. In 8 years out of 10 the reading falls between 0.16 m and 1.54 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 0.28 m on the gauge does not mean the water is that deep.

What is the water level of Missinaibi River at Mattice today?

On Oct 18, 2026, 03:55 PM EDT, the water level was 0.28 m. Up 0.04 m over the last 24 hours.

Is Missinaibi River at Mattice rising or falling?

Up 0.04 m over the last 24 hours. Up 0.12 m over the last 7 days.

Is the level of Missinaibi River at Mattice 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:04LJ001 (Agency page)
Coordinates
49.61108, -83.26778 (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 0.28 m 2026-10-18 19:55 Provisional
Flow 16.8 m³/s 2026-10-18 19:55 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Missinaibi River at Mattice (eccc:04LJ001). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/missinaibi-river-at-mattice

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.