Thames River at Thamesville
Water level and flow at gauge 02GE003, Ontario. The flow is below normal for October (59% of the median). In the last 24 hours it has been steady.
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 71 years of monthly averages): 11.1 m³/s392 cfs – 29.8 m³/s1,052 cfs, median 17.9 m³/s632 cfs. Right now it is at 59% of the median.
March 16, 1977 · approved records 1948–2025 (HYDAT). Right now the flow is 1% of that record.
7% lower than on October 25, 2025 (11.3 m³/s399 cfs)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 70 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. Fog patches dissipating this morning. High 19. UV index 4 or moderate.
Clear. Fog patches developing overnight. Low 8.
A mix of sun and cloud. Fog patches dissipating in the morning. Wind becoming north 20 km/h late in the afternoon. High 19. UV index 4 or moderate.
Cloudy. Low plus 4.
Forecast for Chatham-Kent (18 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Sydenham RiverFlorence · 12 km | 3.06 m10.05 ft | Normal |
| McGregor CreekChatham · 21 km | 1.06 m3.46 ft | Below normal |
| Thames RiverChatham · 23 km | 1.58 m5.17 ft | Normal |
| Sydenham RiverAlvinston · 33 km | 10.51 m34.47 ft | Below normal |
| Black CreekBradshaw · 34 km | 6.35 m20.84 ft | Normal |
| Sydenham RiverWallaceburg · 34 km | 5.17 m16.97 ft | Normal |
Official sources
For flood warnings, advisories and approved data, always use these official services:
Questions
What is the water level of the Thames River at Thamesville today?
The latest reading (Oct 25, 8 AM, local standard time) is 10.73 m (35.20 ft) with a flow of 10.5 m³/s (371 cfs).
Is the Thames River at Thamesville high right now?
The flow is below normal for October (59% of the median).
Is the Thames River rising or falling?
In the last 24 hours it has been steady.
What is the highest flow ever recorded on the Thames River at Thamesville?
960 m³/s (33,902 cfs) on March 16, 1977, the highest instantaneous flow in the approved records of the Water Survey of Canada (1948–2025). Events after 2025 are not yet in the approved archive.
How does the Thames River at Thamesville compare with a year ago?
The flow is 7% lower than on October 25, 2025 (11.3 m³/s (399 cfs), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02GE003 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.