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South Branch South Nation River near Winchester Springs water level

River gauge, South Branch South Nation River, Ontario, Canada

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Right now

Very high for mid-October

Water level

7.48m Down 0.08 m over the last 24 hours

6.5 7.0 7.5

History

History
78mOct 14Oct 15Oct 17Oct 19Oct 2178mOct 14Oct 17Oct 21
78mSep 21Sep 28Oct 6Oct 13Oct 2178mSep 21Oct 6Oct 21
810mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026810mOct 2025Apr 2026Oct 2026
810mJanMarMayJulSepNov2026810mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

High water at South Branch South Nation River near Winchester Springs: the latest reading is 7.48 m, well above normal for mid-October.

That puts it 0.59 m above the median of 6.89 m for mid-October, based on 21 years of readings. A year ago it stood at 6.55 m (+0.93 m).

It is still going down, by 0.08 m over the past 24 hours. The 30-day range is 6.84 m – 8.35 m.

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

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

Key numbers

Median for this date
6.89 m0.59 m above the median for this date
Normal for this date
6.41 m – 7.41 m8 years in 10 fall in this range (21 years of records)
Same day last year
6.55 m+0.93 m
Lowest and highest in 30 days
6.84 m – 8.35 m
Lowest and highest in 12 months
6.46 m – 8.23 m

High water: what to watch for

Fast water is stronger than it looks. Even shallow water across a road can move a car, and riverbanks can be undercut and give way without warning.

Upstream gauges on the same river usually show a rise first, which is a useful early warning.

Weather at the gauge

No rain in the last 3 days.

20 Tue 15° 3° – Wind 14 km/h
21 Wed 12° 0° – Wind 9 km/h
22 Thu 11° 3° – Wind 21 km/h
23 Fri 10° 1° – Wind 12 km/h
24 Sat 13° 1° – Wind 10 km/h
25 Sun 16° 3° – Wind 21 km/h
26 Mon 13° 8° – Wind 17 km/h

Forecast: Open-Meteo

Sunrise 07:25 AM Sunset 06:08 PM Daylight 10 hr, 43 min Waxing gibbous 74%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
North Branch South Nation River near HeckstonRiver gauge, North Branch South Nation River 1.03 m High −0.07 m 12 km
South Nation River at ChestervilleRiver gauge, South Nation River 6.31 m Very high −0.03 m 16 km
South Nation River at SpencervilleRiver gauge, South Nation River 11.09 m High −0.02 m 22 km
Kemptville Creek near KemptvilleRiver gauge, Kemptville Creek 6.09 m Very high −0.02 m 24 km
South Castor River at KenmoreRiver gauge, South Castor River 1.45 m Very high −0.06 m 26 km
Grass River at Chase MillsRiver gauge, Grass River 712 cfs Normal −155.0 cfs 17 mi
Castor River at RussellRiver gauge, Castor River 3.30 m Very high −0.05 m 29 km
Payne River near BerwickRiver gauge, Payne River 6.26 m High −0.04 m 30 km

Questions and answers

How does the South Branch South Nation River near Winchester Springs compare with last year?

It is 0.93 m higher than on the same day last year, when the reading was 6.55 m.

What is a normal level for the South Branch South Nation River near Winchester Springs in mid-October?

The median for mid-October is 6.89 m. In 8 years out of 10 the reading falls between 6.41 m and 7.41 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 7.48 m on the gauge does not mean the water is that deep.

What is the water level of South Branch South Nation River near Winchester Springs today?

On Oct 20, 2026, 10:35 PM EDT, the water level was 7.48 m. Down 0.08 m over the last 24 hours.

Is South Branch South Nation River near Winchester Springs rising or falling?

Down 0.08 m over the last 24 hours. Down 0.05 m over the last 7 days.

Is the level of South Branch South Nation River near Winchester Springs normal?

Very high 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:02LB031 (Agency page)
Coordinates
44.99794, -75.36206 (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 7.48 m 2026-10-21 02:35 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: South Branch South Nation River near Winchester Springs (eccc:02LB031). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/south-branch-south-nation-river-near-winchester-springs

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.