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Corsham water level

River gauge, River Avon, Wiltshire, United Kingdom

Directions

Right now

Very low for mid-October

Water level

0.02m Steady over the last 24 hours

0.0 0.5 Highest onrecord 0.89 m Lowest on record 0.02 m

History

History
-0.00.10.20.3mOct 16Oct 16Oct 16Oct 17Oct 17Top of normal rangeBottom of normal range-0.00.10.20.3mOct 16Oct 16Oct 17Top of normal rangeBottom of normal range
-0.00.20.4mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Top of normal rangeBottom of normal range-0.00.20.4mOct 2025Apr 2026Oct 2026Top of normal rangeBottom of normal range
-0.00.20.4mJanMarMayJulSepNov2026-0.00.20.4mJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Top of normal rangeBottom of normal range

What this means

At 0.02 m, the River Avon at Corsham is far below normal for mid-October.

The median for mid-October is 0.05 m, based on 11 years of readings, so the river level is 0.03 m below typical. A year ago it stood at 0.02 m as well. The lowest reading on record is 0.02 m (June 24, 2017).

It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 0.02 m and 0.03 m.

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

Compared with 11 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
0.05 m0.03 m below the median for this date
Normal for this date
0.03 m – 0.19 m8 years in 10 fall in this range (11 years of records)
Normal range
0.10 m – 0.30 m
Same day last year
0.02 m0.00 m
Lowest and highest in 30 days
0.02 m – 0.03 m
Lowest and highest in 12 months
0.02 m – 0.41 m
Highest on record
0.89 mOctober 23, 2022
Lowest on record
0.02 mJune 24, 2017

On the river at Corsham

Low, clear water makes fish wary, and anglers often do better early and late in the day. For canoeists, shallow riffles mean scraped hulls and the odd portage.

Flood warnings for the area come from the Environment Agency.

About the River Avon

River Avon, Bristol

The River Avon is a river in the southwest of England. To distinguish it from a number of other rivers of the same name, it is often called the Bristol Avon. The name 'Avon' is from an ancestor of the Welsh word afon, meaning 'river'.

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: 4.1 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 13° 6° – Wind 18 km/h
18 Sun 12° 5° 0.2 mm Wind 24 km/h
19 Mon 14° 7° 2.3 mm, 78% Wind 16 km/h
20 Tue 13° 8° 6.9 mm, 56% Wind 12 km/h
21 Wed 13° 7° 3.9 mm, 57% Wind 25 km/h
22 Thu 14° 5° 3.3 mm, 60% Wind 17 km/h
23 Fri 14° 7° 26 mm, 84% Wind 36 km/h

Forecast: Open-Meteo

Sunrise 07:36 AM Sunset 06:13 PM Daylight 10 hr, 37 min First quarter 44%

Map

Other gauges on the River Avon

Gauge Level Compared with normal 24 hours Distance
BathfordRiver gauge, River Avon 0.73 m Normal ±0 8.8 km
Bradford on AvonRiver gauge, River Avon 1.04 m Normal ±0 11 km
Bath Destructor BridgeRiver gauge, River Avon 3.41 m Normal ±0 14 km
Great SomerfordRiver gauge, River Avon 0.14 m Low ±0 17 km
SaltfordRiver gauge, River Avon 0.52 m Normal ±0 18 km
Keynsham, RivermeadRiver gauge, River Avon 4.70 m Low ±0 21 km
Bristol Netham LockRiver gauge, River Avon 6.10 m Normal ±0 25 km
Netham WeirRiver gauge, River Avon 0.26 m Normal ±0 25 km
Bristol Bedminster St Johns Lane UpstreamRiver gauge, River Avon 0.33 m Normal −0.01 m 28 km
Bristol Bedminster St Johns Lane DownstreamRiver gauge, River Avon 0.33 m No reference yet ±0 28 km
Upavon EastRiver gauge, River Avon 0.19 m Low ±0 30 km
Upavon WestRiver gauge, River Avon 0.05 m Very low ±0 30 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Corsham AqueductRiver gauge 0.01 m Very low −0.01 m 0.3 km
Melksham ShawRiver gauge, South Brook 0.05 m Normal −0.02 m 4.3 km
MiddlehillRiver gauge, By Brook 0.19 m Low +0.03 m 5.6 km
Chippenham GateRiver gauge 43.14 m Low ±0 6.0 km
Melksham ClackersRiver gauge, Clackers Brook 0.02 m Very low −0.01 m 8.2 km
StanleyRiver gauge, River Marden 0.36 m Low −0.04 m 9.2 km
West KingtonRiver gauge, By Brook −0.02 m Lowest on record ±0 9.7 km
SemingtonRiver gauge, Semington Brook 0.32 m Normal ±0 10 km

Questions and answers

Is the River Avon at Corsham higher than last year?

It is about the same as on this day last year, when the reading was 0.02 m.

What is a normal level for the River Avon at Corsham in mid-October?

The median for mid-October is 0.05 m. In 8 years out of 10 the reading falls between 0.03 m and 0.19 m, based on 11 years of records.

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 0.02 m on the gauge does not mean the water is that deep.

What is the water level of Corsham today?

On 17 Oct 2026, 22:30 BST, the water level was 0.02 m. Steady over the last 24 hours.

Is Corsham rising or falling?

Steady over the last 24 hours.

Is the level of Corsham normal?

Very low for mid-October. Compared with 11 years of daily readings for this time of year.

What is the highest water level ever recorded at Corsham?

The highest level on record is 0.89 m on October 23, 2022. The lowest is 0.02 m on June 24, 2017.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:531186 (Agency page)
Coordinates
51.42733, -2.18986 (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

ParameterLast valueTime (UTC)Quality
Water level 0.02 m 2026-10-17 21:30 Provisional

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How to cite

Environment Agency: Corsham (ea:531186). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/wiltshire/corsham

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.