South Branch South Nation River at Winchester Springs
Water level and flow at gauge 02LB031, Ontario. The level is above normal for October. In the last 24 hours it has been falling.
Latest reading Oct 25, 8 AM local standard time (2 hours ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 21 years of monthly averages): 6.70 m21.97 ft – 7.17 m23.52 ft, median 6.77 m22.21 ft.
April 10, 2014 · approved records 2002–2025 (HYDAT). Right now the level is 3.62 m11.88 ft below that record.
0.73 m2.40 ft higher than on October 25, 2025 (6.53 m21.41 ft)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily water level
Normal range: monthly averages of 19 years (lighter band: 10th–90th percentile). Past years: approved daily means from HYDAT, the Water Survey of Canada archive (the latest year published is 2025). 2026: daily means of the provisional real-time readings collected by Canada River Levels since October 22, 2026.
Weather near this gauge
Sunny. Wind becoming southwest 20 km/h this afternoon. High 16. Wind chill minus 3 this morning. UV index 3 or moderate.
Increasing cloudiness this evening. Low 8.
Cloudy with 60 percent chance of showers in the morning and early in the afternoon then a mix of sun and cloud. Wind becoming northwest 20 km/h late in the morning. High 13. UV index 2 or low.
Clear. Low minus 4.
Forecast for Winchester (10 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| North Branch South Nation RiverHeckston · 12 km | 0.80 m2.62 ft | Above normal |
| South Nation RiverChesterville · 16 km | 5.62 m18.42 ft | No normal yet |
| South Nation RiverSpencerville · 22 km | 11.02 m36.16 ft | Normal |
| Kemptville CreekKemptville · 24 km | 5.96 m19.55 ft | Above normal |
| South Castor RiverKenmore · 26 km | 1.34 m4.40 ft | Normal |
| Castor RiverRussell · 29 km | 3.21 m10.54 ft | Normal |
About this gauge
Station: 02LB031 · South Branch South Nation River Near Winchester Springs
Location: 44.9979, -75.3621 · Ontario
Water levels are measured from a local reference point at each gauge, not from sea level, so they cannot be compared between gauges.
Official sources
For flood warnings, advisories and approved data, always use these official services:
Questions
What is the water level of the South Branch South Nation River at Winchester Springs today?
The latest reading (Oct 25, 8 AM, local standard time) is 7.26 m (23.81 ft).
Is the South Branch South Nation River at Winchester Springs high right now?
The level is above normal for October.
Is the South Branch South Nation River rising or falling?
In the last 24 hours it has been falling.
What is the highest water level ever recorded on the South Branch South Nation River at Winchester Springs?
10.88 m (35.68 ft) on April 10, 2014, the highest instantaneous level in the approved records of the Water Survey of Canada (2002–2025). Events after 2025 are not yet in the approved archive.
How does the South Branch South Nation River at Winchester Springs compare with a year ago?
The level is 0.73 m (2.40 ft) higher than on October 25, 2025 (6.53 m (21.41 ft), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02LB031 of the Water Survey of Canada (Environment and Climate Change Canada). Real-time data are provisional and may be revised. We check for new readings every 30 minutes. Canada River Levels is not an official source.