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Portsmouth water level

River gauge, Hampshire, United Kingdom

Directions

Right now

Latest reading

Surface elevation

-0.05m Down 0.63 m over the last 24 hours

-0.5 0.0 0.5

History

History
-101mOct 16Oct 17Oct 18Oct 19Oct 20-101mOct 16Oct 18Oct 20
Surface elevation

What this means

The latest river level reported for Portsmouth is −0.05 m. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

The level is falling, down 0.63 m over the past 24 hours. Over the past 30 days it has moved between −1.15 m and 1.18 m.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

On the river at Portsmouth

There is no published typical range for this gauge yet, so anglers and canoeists are best guided by the trend.

Flood warnings for the area come from the Environment Agency.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:36 AM Sunset 06:04 PM Daylight 10 hr, 28 min Waxing gibbous 69%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
BrowndownRiver gauge, River Alver 0.28 m Normal +0.04 m 4.4 km
Salterns PSRiver gauge −1.23 m Very low −0.05 m 5.2 km
Monkton Mead PSRiver gauge 0.42 m Very low +0.05 m 7.4 km
Monkton MeadRiver gauge, Monktonmead Brook 0.41 m Normal +0.05 m 7.6 km
St JohnsRiver gauge, Monktonmead Brook 2.55 m Very low +0.03 m 8.3 km
North Fareham weirRiver gauge, River Wallington 0.26 m High +0.15 m 9.0 km
West StreetRiver gauge, River Lavant 7.07 m Normal ±0 11 km
DenmeadRiver gauge, River Wallington 33.42 m High +0.26 m 12 km

Questions and answers

Is Portsmouth really −0.05 m deep?

No. −0.05 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 Portsmouth today?

On 20 Oct 2026, 16:15 BST, the surface elevation was −0.05 m. Down 0.63 m over the last 24 hours.

Is Portsmouth rising or falling?

Down 0.63 m over the last 24 hours.

Is the level of Portsmouth normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

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

Where does this data come from?

The values come directly from the Environment Agency, the official operator of this gauge, and are published under the Open Government Licence v3.0. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:2832SO (Agency page)
Coordinates
50.79182, -1.10790 (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 −0.05 m 2026-10-20 15:15 Provisional
Water level – – –

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How to cite

Environment Agency: Portsmouth (ea:2832SO). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/hampshire/portsmouth-2832so

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.