Costessey Mill water level

Name: Costessey Mill water level (Environment Agency)
Creator: Environment Agency
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

River gauge, River Wensum, Norfolk, United Kingdom

Directions

Within the normal range

Water level

0.25m Steady over the last 24 hours

Measured 18 Oct 2026, 14:24 BST (42 min ago)

History

7 days

Water level Top of normal rangeBottom of normal range

What this means

Water levels are unremarkable at Costessey Mill, where the gauge shows 0.25 m.

The usual range here runs from 0.25 m to 0.42 m.

It has barely moved over the past 24 hours. The 30-day range is 0.24 m – 0.25 m.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with the normal range the agency publishes for this gauge. How to read levels

Key numbers

Normal range: 0.25 m – 0.42 m
Highest on record: 0.59 mJanuary 7, 2024
Lowest on record: 0.21 mJuly 17, 2015

For anglers and canoeists

This is an ordinary level for the river: most put-ins, beats and weirs behave as they usually do.

Many angling and canoe clubs check gauges like this one before heading out.

About the River Wensum

The River Wensum is a chalk river in Norfolk, England and a tributary of the River Yare, despite being the larger of the two rivers. The river is a biological Site of Special Scientific Interest and Special Area of Conservation.

Weather at the gauge

Rain in the last 3 days: 6.6 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 14° 9° 6.7 mm, 100% Wind 21 km/h

19 Mon 15° 11° 12 mm, 100% Wind 14 km/h

20 Tue 14° 11° 1.9 mm, 55% Wind 21 km/h

21 Wed 12° 10° 5.9 mm, 41% Wind 19 km/h

22 Thu 13° 5° 0.9 mm, 51% Wind 20 km/h

23 Fri 12° 8° 27 mm, 59% Wind 28 km/h

24 Sat 10° 4° 1.0 mm, 46% Wind 28 km/h

Forecast: Open-Meteo

Sunrise 07:26 AM Sunset 05:56 PM Daylight 10 hr, 29 min First quarter 50%

Map

Other gauges on the River Wensum

Gauge	Level	Compared with normal	24 hours	Distance
Swanton MorleyRiver gauge, River Wensum	0.11 m	Normal	±0	17 km
FakenhamRiver gauge, River Wensum	0.40 m	Very low	±0	31 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
ColneyRiver gauge, River Yare	0.15 m	Low	+0.01 m	4.5 km
SpixworthRiver gauge, Spixworth Beck	0.09 m	Low	±0	7.3 km
WymondhamRiver gauge, River Tiffey	1.20 m	Normal	+0.05 m	13 km
ShoteshamRiver gauge, River Tas	0.17 m	Normal	+0.01 m	14 km
Hoveton BroadTidal gauge, River Bure	0.45 m	Normal	−0.05 m	14 km
Stone Road FarmRiver gauge, River Tud	0.23 m	Normal	±0	15 km
BrundallTidal gauge, River Yare	0.42 m	Normal	−0.24 m	16 km
IngworthRiver gauge, River Bure	0.18 m	Very low	−0.01 m	17 km

Questions and answers

What is the typical range for the River Wensum at Costessey Mill?

The Environment Agency gives a typical range of 0.25 m to 0.42 m for this gauge.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 0.25 m on the gauge does not mean the water is that deep.

What is the water level of Costessey Mill today?

On 18 Oct 2026, 14:24 BST, the water level was 0.25 m. Steady over the last 24 hours.

Is Costessey Mill rising or falling?

Steady over the last 24 hours.

Is the level of Costessey Mill normal?

Within the normal range. Compared with the normal range the agency publishes for this gauge.

What is the highest water level ever recorded at Costessey Mill?

The highest level on record is 0.59 m on January 7, 2024. The lowest is 0.21 m on July 17, 2015.

How often is this data updated?

The Environment Agency publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment Agency
Station code: ea:E19862 (Agency page)
Coordinates: 52.66862, 1.21797 (WGS84)
Vertical datum: station datum
Update interval: every 15 minutes
Licence: Open Government Licence v3.0. Contains Environment Agency data licensed under the Open Government Licence v3.0

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.25 m	2026-10-18 13:24	Provisional

Download

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<iframe src="https://nivelmap.com/embed/2733?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Costessey Mill water level"></iframe>

How to cite

Environment Agency: Costessey Mill (ea:E19862). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/norfolk/costessey-mill

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer