Sydenham River at Strathroy water level
River gauge, Sydenham River, Ontario, Canada
Right now
Low for mid-October
Water level
- Flow
- 0.25 m³/s
History
20252026
What this means
The Sydenham River at Strathroy is running below normal at 1.83 m.
The median for mid-October is 1.86 m, based on 21 years of readings, so the water level is 0.03 m below typical. On the same day last year the reading was 1.85 m, a difference of −0.02 m.
It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 1.79 m and 1.96 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
- 1.86 m0.03 m below the median for this date
- Normal for this date
- 1.82 m – 2.03 m8 years in 10 fall in this range (21 years of records)
- Same day last year
- 1.85 m−0.02 m
- Lowest and highest in 30 days
- 1.79 m – 1.96 m
- Lowest and highest in 12 months
- 1.80 m – 3.59 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 Sydenham River
The Sydenham River is a river in Chatham-Kent, Lambton County and Middlesex County in southwestern Ontario, Canada, flowing southwest from its source west of London, Ontario and emptying into Lake Saint Clair. The length of the river is 165 kilometres (103 mi) and it drains a watershed of approximately 2,700 square kilometres (1,000 mi2), making it one of the largest river flowing into the St.Clair on the Canadian side. The river flows through the towns of Strathroy and Wallaceburg. It was named after Lord Sydenham, governor of Canada from 1839 to 1841.
Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.
Weather at the gauge
Rain in the last 3 days: 6.2 mm. Rain that falls upstream can take hours or days to show up at a river gauge.
Forecast: Open-Meteo
Map
Other gauges on the Sydenham River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Sydenham River near AlvinstonRiver gauge, Sydenham River | 10.59 m | Normal | −0.01 m | 23 km |
| Sydenham River at FlorenceRiver gauge, Sydenham River | 3.14 m | Normal | −0.03 m | 46 km |
| Sydenham River at WallaceburgRiver gauge, Sydenham River | 5.27 m | Normal | +0.04 m | 74 km |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Ausable River near SpringbankRiver gauge, Ausable River | 1.77 m | Normal | −0.04 m | 13 km |
| Oxbow Creek near KilworthRiver gauge, Oxbow Creek | 4.70 m | Normal | −0.01 m | 17 km |
| Dingman Creek below LambethRiver gauge, Dingman Creek | 4.86 m | Normal | −0.03 m | 23 km |
| Parkhill Creek above Parkhill ReservoirRiver gauge, Parkhill Creek | 10.90 m | High | −0.01 m | 23 km |
| South Parkhill Creek near ParkhillRiver gauge, South Parkhill Creek | 1.89 m | High | +0.05 m | 24 km |
| Thames River at ByronRiver gauge, Thames River | 1.79 m | Normal | −0.02 m | 24 km |
| Thames River near DuttonRiver gauge, Thames River | 3.75 m | Normal | −0.04 m | 26 km |
| Little Ausable River near Lucan CrossingRiver gauge, Little Ausable River | 2.53 m | Normal | −0.04 m | 29 km |
Questions and answers
Is the Sydenham River at Strathroy higher than last year?
No, it is 0.02 m lower than on the same day last year, when the reading was 1.85 m.
What is a normal level for the Sydenham River at Strathroy in mid-October?
The median for mid-October is 1.86 m. In 8 years out of 10 the reading falls between 1.82 m and 2.03 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 1.83 m on the gauge does not mean the water is that deep.
What is the water level of Sydenham River at Strathroy today?
On Oct 18, 2026, 06:30 AM EDT, the water level was 1.83 m. Steady over the last 24 hours.
Is Sydenham River at Strathroy rising or falling?
Steady over the last 24 hours. Up 0.03 m over the last 7 days.
Is the level of Sydenham River at Strathroy 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:02GG005(Agency page)- Coordinates
42.95886, -81.62714(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
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 1.83 m | 2026-10-18 10:30 | Provisional |
| Flow | 0.25 m³/s | 2026-10-18 10:30 | Provisional |
Download
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How to cite
Environment and Climate Change Canada – Water Survey of Canada: Sydenham River at Strathroy (eccc:02GG005). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/sydenham-river-at-strathroy
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