Nanaimo River at Cassidy
Water level and flow at gauge 08HB034, British Columbia. The flow is well below normal for October (24% of the median). In the last 24 hours it has been rising.
Latest reading Oct 25, 7 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 60 years of monthly averages): 14.1 m³/s499 cfs – 35.5 m³/s1,255 cfs, median 25.2 m³/s890 cfs. Right now it is at 24% of the median.
December 27, 1980 · approved records 1965–2024 (HYDAT). Right now the flow is 1% of that record.
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 59 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
Cloudy with 60 percent chance of showers. Wind east 20 km/h except gusting to 50 near the Strait of Georgia this morning. High 11. UV index 1 or low.
Cloudy with 60 percent chance of showers. Wind northeast 20 km/h becoming northwest 20 after midnight. Low 6.
Clearing early in the morning. Wind northwest 20 km/h becoming light late in the afternoon. High 14. UV index 1 or low.
Cloudy periods. Low 7 except plus 2 inland.
Forecast for Nanaimo (12 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Millstone RiverNanaimo · 13 km | 1.36 m4.45 ft | Normal |
| South Nanaimo RiverJunction · 17 km | 2.30 m7.54 ft | Very low |
| Jump CreekThe Mouth · 22 km | 0.83 m2.71 ft | Below normal |
| Chemainus RiverWestholme · 25 km | 0.64 m2.11 ft | Below normal |
| Cowichan RiverLake Cowichan · 30 km | 0.31 m1.00 ft | Very low |
| Cowichan LakeLake Cowichan · 30 km | 0.49 m1.60 ft | Very low |
About this gauge
Station: 08HB034 · Nanaimo River Near Cassidy
Location: 49.0686, -123.8869 · British Columbia
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 Nanaimo River at Cassidy today?
The latest reading (Oct 25, 7 AM, local standard time) is 0.75 m (2.46 ft) with a flow of 6.11 m³/s (216 cfs).
Is the Nanaimo River at Cassidy high right now?
The flow is well below normal for October (24% of the median).
Is the Nanaimo River rising or falling?
In the last 24 hours it has been rising.
What is the highest flow ever recorded on the Nanaimo River at Cassidy?
958 m³/s (33,831 cfs) on December 27, 1980, the highest instantaneous flow in the approved records of the Water Survey of Canada (1965–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 08HB034 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.