Big Otter Creek at Tillsonburg water level

Name: Big Otter Creek at Tillsonburg water level (Environment and Climate Change Canada – Water Survey of Canada)
Creator: Environment and Climate Change Canada – Water Survey of Canada
License: https://open.canada.ca/en/open-government-licence-canada

River gauge, Big Otter Creek, Ontario, Canada

Directions

Low for mid-October

Water level

2.93m Steady over the last 24 hours

Measured Oct 20, 2026, 05:15 PM EDT (45 min ago)

Flow: 1.29 m³/s

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

Big Otter Creek at Tillsonburg is running below normal at 2.93 m.

That puts it 0.04 m below the median of 2.97 m for mid-October, based on 21 years of readings. A year ago it stood at 2.91 m (+0.02 m).

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 2.91 m and 3.13 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: 2.97 m0.04 m below the median for this date
Normal for this date: 2.92 m – 3.31 m8 years in 10 fall in this range (21 years of records)
Same day last year: 2.91 m+0.02 m
Lowest and highest in 30 days: 2.91 m – 3.13 m
Lowest and highest in 12 months: 2.89 m – 3.47 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 Big Otter Creek

Big Otter Creek is a waterway that empties into Lake Erie at Port Burwell, Ontario. It is 42 kilometres (26 mi) long, and the area of its drainage basin is 712 square kilometres (275 sq mi). The creek's headwaters are north of the Horseshoe Moraine, and its mouth is just west of the Long Point Conservation Area. Scenic bluffs line the valley as it passes through the moraine.

Weather at the gauge

No rain in the last 3 days.

20 Tue 18° 2° – Wind 16 km/h

21 Wed 17° 1° – Wind 11 km/h

22 Thu 20° 4° – Wind 15 km/h

23 Fri 16° 6° – Wind 17 km/h

24 Sat 17° 5° – Wind 13 km/h

25 Sun 18° 9° – Wind 23 km/h

26 Mon 19° 10° – Wind 15 km/h

Forecast: Open-Meteo

Sunrise 07:43 AM Sunset 06:34 PM Daylight 10 hr, 51 min Waxing gibbous 72%

Map

Other gauges on Big Otter Creek

Gauge	Level	Compared with normal	24 hours	Distance
Big Otter Creek near CaltonRiver gauge, Big Otter Creek	9.81 m	Normal	−0.01 m	19 km
Big Otter Creek above OttervilleRiver gauge, Big Otter Creek	3.85 m	Low	±0	19 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Big Creek near DelhiRiver gauge, Big Creek	4.93 m	Low	±0	18 km
Catfish Creek at AylmerRiver gauge, Catfish Creek	2.92 m	Normal	±0	23 km
Reynolds Creek near PutnamRiver gauge, Reynolds Creek	11.15 m	Very high	+5.30 m	23 km
Big Creek near WalsinghamRiver gauge, Big Creek	4.14 m	Normal	±0	24 km
Thames River at IngersollRiver gauge, Thames River	1.25 m	Low	±0	24 km
Venison Creek near WalsinghamRiver gauge, Venison Creek	6.70 m	Very low	±0	27 km
Big Creek near KelvinRiver gauge, Big Creek	6.05 m	Normal	±0	27 km
Silver Creek near GrovesendRiver gauge, Silver Creek	4.29 m	Normal	±0	28 km

Questions and answers

How does Big Otter Creek at Tillsonburg compare with last year?

It is 0.02 m higher than on the same day last year, when the reading was 2.91 m.

What is a normal level for Big Otter Creek at Tillsonburg in mid-October?

The median for mid-October is 2.97 m. In 8 years out of 10 the reading falls between 2.92 m and 3.31 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 2.93 m on the gauge does not mean the water is that deep.

What is the water level of Big Otter Creek at Tillsonburg today?

On Oct 20, 2026, 05:15 PM EDT, the water level was 2.93 m. Steady over the last 24 hours.

Is Big Otter Creek at Tillsonburg rising or falling?

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

Is the level of Big Otter Creek at Tillsonburg 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:02GC010 (Agency page)
Coordinates: 42.85731, -80.72358 (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	2.93 m	2026-10-20 21:15	Provisional
Flow	1.29 m³/s	2026-10-20 21:15	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Big Otter Creek at Tillsonburg (eccc:02GC010). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/big-otter-creek-at-tillsonburg

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