Millstone River at Nanaimo Water Level
Live river level, flow, historical records and forecast for Millstone River at Nanaimo in Canada, BC, Canada, built from official government gauge data.
- Location Canada, BC, Canada
- Watershed south central vancouver island
- Primary gauge 08HB032 (Water Survey of Canada)
About Millstone River at Nanaimo
Millstone River at Nanaimo in South Central Vancouver Island, British Columbia, gives a local picture of river level through the year.
Season by season
The seasonal pattern is modest but clear. The highest typical month is January at 1.68 m (5.52 ft), while the lowest typical month is August at 1.15 m (3.77 ft). That leaves a typical annual swing of 53.3 cm (21 in). For a dock, pump intake, or low crossing, that is the range to plan around: winter water is typically higher, and late-summer water is typically lower.
That pattern fits a coastal rhythm more than a mountain freshet story. It means the river can stay steadier than snowpack-driven systems inland, but it still changes enough to matter for shallow access and bank-edge use.
Records and rises
The record high is 3 m (9.83 ft), set in November 2021. The record low is 1.09 m (3.57 ft), set in August 2023. Those are far apart for a small river, and they show how much this site can move from one season to another.
The fastest 24-hour rise was 82.9 cm (32.6 in), also in November 2021. For anyone watching the river after rain, that is the number that matters most: it is the warning time this water can give when levels change fast. The fastest 24-hour drop was 42.9 cm (16.9 in), also in November 2021, so the river can fall quickly too.
The station drains 97.7 km2 (37.7 sq mi) upstream of the gauge.
Reading the hero number
The hero number on this page is best read as today’s level compared with the median for this same calendar day, not as raw elevation alone. Raw level by itself does not say whether the river is running high for the date or simply in its normal seasonal band.
With more than 38 years on record, Water Survey of Canada uses that longer history to set the daily median. That makes the hero number a practical check for cottagers, anglers, and anyone watching a crossing or intake: it tells you where the river stands against what is usual for this day, not just where the water sits on the staff gauge.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
Nibi Metrics - live water levels, flow, and forecasts for 17,900+ lakes and rivers
Real-time water levels, forecasts, and alerts for lakes and rivers in a growing number of countries. Built on official government data.
Nibi Metrics tracks more than 17,900 gauged lakes and rivers in a growing number of countries, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, the Environment Agency for England, the Scottish Environment Protection Agency, Natural Resources Wales, the Office of Public Works in Ireland (waterlevel.ie), the Norwegian Water Resources and Energy Directorate (NVE), the State of Queensland's water monitoring network, and on the Great Lakes the Canadian Hydrographic Service and NOAA. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
What you can see for any monitored lake or river
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Alerts that watch the water for you
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Where Nibi comes from
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Coverage
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
Free forever, funded by members
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
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