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Denmead water level

River gauge, River Wallington, Hampshire, United Kingdom

Directions

Right now

Normal for mid-October

Surface elevation

33.19m Down 0.02 m over the last 24 hours

33.0 33.2 33.5

History

History
33.033.233.4mOct 11Oct 13Oct 15Oct 16Oct 1833.033.233.4mOct 11Oct 15Oct 18
33.033.233.4mSep 18Sep 26Oct 3Oct 10Oct 1833.033.233.4mSep 18Oct 3Oct 18
33.033.5mOct 2025Jan 2026Apr 2026Jul 2026Oct 202633.033.5mOct 2025Apr 2026Oct 2026
33.033.5mJanMarMayJulSepNov202633.033.5mJanAprJulOct2026

20252026

Surface elevation Normal range (10–90 %)

What this means

The gauge at Denmead reads 33.19 m, a normal level for mid-October.

That puts it 0.04 m below the median of 33.23 m for mid-October, based on 21 years of readings. A year ago it stood at 33.23 m (−0.04 m).

The level is falling, down 0.02 m over the past 24 hours. Over the past 30 days it has moved between 32.93 m and 33.48 m.

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

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
33.23 m0.04 m below the median for this date
Normal for this date
33.01 m – 33.47 m8 years in 10 fall in this range (21 years of records)
Same day last year
33.23 m−0.04 m
Lowest and highest in 30 days
32.93 m – 33.48 m
Lowest and highest in 12 months
32.93 m – 33.89 m

On the river at Denmead

A level in the typical range is usually good news for both anglers and canoeists, but conditions can change quickly after rain in the hills.

Flood warnings for the area come from the Environment Agency.

About the River Wallington

River Wallington

The River Wallington curves and gently meanders west then south in south-east Hampshire, England. Rising at sources to north and south of Waterlooville these flow west around Portsdown Hill into a dammed section as the lake in the grounds of Southwick House to unite, then through the village of Southwick then, in that parish, to receive the Beck of similar flow from the north. The river turns south and runs past fields and past the large town Fareham, before entering Portsmouth Harbour, as its main natural watercourse inflow, at Wallington.

Read more on Wikipedia

Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.

Weather at the gauge

Rain in the last 3 days: 6.4 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 14° 5° – Wind 20 km/h
18 Sun 13° 7° 1.0 mm, 40% Wind 22 km/h
19 Mon 14° 8° 1.6 mm, 53% Wind 16 km/h
20 Tue 13° 9° 3.2 mm, 53% Wind 14 km/h
21 Wed 13° 8° 4.6 mm, 61% Wind 25 km/h
22 Thu 13° 5° 10 mm, 72% Wind 21 km/h
23 Fri 14° 8° 28 mm, 78% Wind 36 km/h

Forecast: Open-Meteo

Sunrise 07:32 AM Sunset 06:08 PM Daylight 10 hr, 35 min First quarter 49%

Map

Other gauges on the River Wallington

Gauge Level Compared with normal 24 hours Distance
North Fareham weirRiver gauge, River Wallington 0.11 m Low −0.03 m 8.2 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Crosslands DriveRiver gauge, River Lavant 0.12 m Normal ±0 6.8 km
West StreetRiver gauge, River Lavant 7.07 m Normal ±0 6.9 km
MislingfordRiver gauge, River Meon 0.21 m Normal ±0 8.1 km
WickhamRiver gauge, River Meon 18.58 m Very low ±0 9.0 km
Salterns PSRiver gauge −1.17 m Normal ±0 9.0 km
EmsworthRiver gauge, West Brook 1.85 m Normal −0.04 m 9.7 km
WestbourneRiver gauge, River Ems 0.05 m Low ±0 9.8 km
Emsworth Mill Pond SluicesRiver gauge 1.87 m Normal −0.04 m 10 km

Questions and answers

How does the River Wallington at Denmead compare with last year?

It is 0.04 m lower than on the same day last year, when the reading was 33.23 m.

What is a normal level for the River Wallington at Denmead in mid-October?

The median for mid-October is 33.23 m. In 8 years out of 10 the reading falls between 33.01 m and 33.47 m, based on 21 years of records.

Is Denmead really 33.19 m deep?

No. 33.19 m is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Denmead today?

On 18 Oct 2026, 12:30 BST, the surface elevation was 33.19 m. Down 0.02 m over the last 24 hours.

Is Denmead rising or falling?

Down 0.02 m over the last 24 hours. Up 0.05 m over the last 7 days.

Is the level of Denmead normal?

Normal for mid-October. Compared with 21 years of daily readings for this time of year.

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:E11570 (Agency page)
Coordinates
50.89226, -1.05931 (WGS84)
Vertical datum
ODN
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

ParameterLast valueTime (UTC)Quality
Surface elevation 33.19 m 2026-10-18 11:30 Provisional

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How to cite

Environment Agency: Denmead (ea:E11570). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/hampshire/denmead

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.