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River Denys at Big Marsh water level

River gauge, River Denys, Nova Scotia, Canada

Directions

High for mid-October

Water level

1.88m Down 0.04 m over the last 24 hours

Flow
0.60 m³/s
1.6 1.7 1.9

History

1.61.82.0mOct 11Oct 13Oct 15Oct 16Oct 181.61.82.0mOct 11Oct 15Oct 18
1.41.61.82.0mSep 18Sep 26Oct 3Oct 11Oct 181.41.61.82.0mSep 18Oct 3Oct 18
Water level Normal range (10–90 %)

What this means

The gauge at River Denys at Big Marsh shows 1.88 m, above normal for mid-October.

The median for mid-October is 1.71 m, based on 15 years of readings, so the water level is 0.17 m above typical.

The level is falling, down 0.04 m over the past 24 hours. Over the past 30 days it has moved between 1.78 m and 2.03 m.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 15 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
1.71 m0.17 m above the median for this date
Normal for this date
1.56 m – 1.94 m8 years in 10 fall in this range (15 years of records)
Lowest and highest in 30 days
1.78 m – 2.03 m
Lowest and highest in 12 months
1.79 m – 2.00 m

Conditions at River Denys at Big Marsh

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

Rain in the last 3 days: 11 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 7° 2° 0.2 mm, 63% Wind 20 km/h
19 Mon 11° 1° – Wind 17 km/h
20 Tue 13° 7° 16 mm, 33% Wind 14 km/h
21 Wed 12° 4° – Wind 14 km/h
22 Thu 12° 4° – Wind 11 km/h
23 Fri 11° 2° 2.8 mm, 49% Wind 26 km/h
24 Sat 8° 2° 0.8 mm, 37% Wind 19 km/h

Forecast: Open-Meteo

Sunrise 07:26 AM Sunset 06:15 PM Daylight 10 hr, 49 min First quarter 50%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
River Inhabitants at GlenoraRiver gauge, River Inhabitants 0.94 m Normal −0.08 m 20 km
Southwest Margaree River near Upper MargareeRiver gauge, Southwest Margaree River 0.97 m Normal −0.03 m 37 km
Middle River at Maclennans CrossRiver gauge, Middle River 1.28 m Normal −0.09 m 39 km
Northeast Margaree River at Margaree ValleyRiver gauge, Northeast Margaree River 0.68 m Normal −0.16 m 56 km
South River at St. AndrewsRiver gauge, South River 1.20 m Normal ±0 66 km
Indian Brook at Indian BrookRiver gauge, Indian Brook 0.74 m Normal −0.09 m 74 km

Questions and answers

What is a normal level for the River Denys at Big Marsh in mid-October?

The median for mid-October is 1.71 m. In 8 years out of 10 the reading falls between 1.56 m and 1.94 m, based on 15 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 1.88 m on the gauge does not mean the water is that deep.

What is the water level of River Denys at Big Marsh today?

On Oct 18, 2026, 10:45 AM ADT, the water level was 1.88 m. Down 0.04 m over the last 24 hours.

Is River Denys at Big Marsh rising or falling?

Down 0.04 m over the last 24 hours. Up 0.07 m over the last 7 days.

Is the level of River Denys at Big Marsh normal?

High for mid-October. Compared with 15 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:01FG001 (Agency page)
Coordinates
45.89369, -61.20475 (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 1.88 m 2026-10-18 13:45 Provisional
Flow 0.60 m³/s 2026-10-18 13:45 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: River Denys at Big Marsh (eccc:01FG001). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/nova-scotia/river-denys-at-big-marsh

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