River Colne at Watford Water Level
Live river level, flow, historical records and forecast for River Colne at Watford in England, United Kingdom, built from official government gauge data.
- Location England, United Kingdom
- Primary gauge ea-2830TH (Environment Agency)
About River Colne at Watford
River Colne at Watford is a gauged river in England.
The river
This gauge has 50 years of record, which is enough to show how the Colne behaves through the year for people watching levels at the bank or planning around a mooring, intake, or low crossing.
The seasonal pattern is modest but clear. The highest typical month is February at 0.28 m (0.9 ft), while the lowest typical month is September at 0.18 m (0.57 ft). That 10 cm (3.9 in) swing is not large, but it still matters when a dock sits close to the waterline or when a shallow reach becomes less forgiving late in the warm season.
The extremes widen that picture. The record high is 1.25 m (4.11 ft) in January 2003. The record low is 0.02 m (0.06 ft) in August 1997. Those two marks show that this river can move well outside its usual band, so a site that feels stable in an average winter or late summer can still see much higher or much lower water.
What the numbers say
Temperate hydrology usually brings the higher water in spring, but this station’s highest typical month is February. Read that as the river reaching its local seasonal crest early in the year rather than later. The lowest typical month is September, which fits the usual late-summer low-water period.
For a resident or angler, the practical message is simple: winter and early spring are the times to watch for higher stages, while late summer can bring the shallowest conditions. The record low in August 1997 is a reminder that low water can become very low, not just a little below normal.
Reading the hero number
The hero reading on this page is best judged against the median for the same calendar day across the station’s record, not against a raw height alone. That comparison tells you whether today is ordinary for this date, high for the season, or running below the day-to-day norm.
At River Colne at Watford, that context comes from the Environment Agency’s station record, with more than 50 years on record. A single level is useful; a level compared with the usual value for this day is better for deciding whether conditions are typical enough for fishing, bank access, or nearby water management.
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 lakes and rivers across Canada, the US and the UK
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. 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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How every number is computed - About the platform
