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Calne water level

River gauge, River Marden, Wiltshire, United Kingdom

Directions

Right now

Normal for mid-October

Water level

0.13m Steady over the last 24 hours

0.0 0.5 1.0 Highest onrecord 1.28 m Lowest on record 0.02 m

History

History
0.20.4mOct 16Oct 16Oct 17Oct 17Oct 18Top of normal rangeBottom of normal range0.20.4mOct 16Oct 17Oct 18Top of normal rangeBottom of normal range
-0.00.20.40.6mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Top of normal rangeBottom of normal range-0.00.20.40.6mOct 2025Apr 2026Oct 2026Top of normal rangeBottom of normal range
-0.00.20.40.6mJanMarMayJulSepNov2026-0.00.20.40.6mJanAprJulOct2026

20252026

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

What this means

Water levels are unremarkable at Calne, where the gauge shows 0.13 m.

The median for mid-October is 0.15 m, based on 18 years of readings, so the river level is 0.02 m below typical. On the same day last year the reading was 0.14 m, a difference of −0.01 m.

It has barely moved over the past 24 hours. The 30-day range is 0.13 m – 0.14 m.

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

Compared with 18 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
0.15 m0.02 m below the median for this date
Normal for this date
0.09 m – 0.33 m8 years in 10 fall in this range (18 years of records)
Normal range
0.04 m – 0.48 m
Same day last year
0.14 m−0.01 m
Lowest and highest in 30 days
0.13 m – 0.14 m
Lowest and highest in 12 months
0.13 m – 0.58 m
Highest on record
1.28 mSeptember 23, 2024
Lowest on record
0.02 mJuly 3, 2010

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 Marden

River Marden

The River Marden is a small tributary of the River Avon in England. It flows from the hills surrounding Calne and meets the Avon about a mile upstream of Chippenham. The river has a mean flow of 43 cubic feet per second (1.2 m3/s).

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

17 Sat 13° 4° – Wind 19 km/h
18 Sun 13° 4° 0.3 mm, 21% Wind 23 km/h
19 Mon 14° 7° 2.7 mm, 71% Wind 14 km/h
20 Tue 13° 8° 4.9 mm, 59% Wind 11 km/h
21 Wed 13° 7° 3.3 mm, 59% Wind 27 km/h
22 Thu 14° 5° 2.7 mm, 56% Wind 18 km/h
23 Fri 14° 7° 28 mm, 82% Wind 36 km/h

Forecast: Open-Meteo

Sunrise 07:37 AM Sunset 06:11 PM Daylight 10 hr, 34 min First quarter 45%

Map

Other gauges on the River Marden

Gauge Level Compared with normal 24 hours Distance
StanleyRiver gauge, River Marden 0.35 m Very low −0.04 m 4.7 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Avon MillRiver gauge 47.68 m Very low ±0 7.8 km
Chippenham GateRiver gauge 43.14 m Low −0.01 m 8.2 km
Avon WeirRiver gauge 50.46 m Very low −0.02 m 9.2 km
Winterborne MonktonRiver gauge, River Kennet −0.12 m Normal ±0 10 km
SeagryRiver gauge 53.43 m Normal ±0 10 km
DauntseyRiver gauge, Dauntsey Brook 0.03 m Very low −0.03 m 11 km
Melksham ClackersRiver gauge, Clackers Brook 0.02 m Very low −0.01 m 11 km
Melksham ShawRiver gauge, South Brook 0.04 m Low −0.01 m 12 km

Questions and answers

Is the River Marden at Calne higher than last year?

No, it is 0.01 m lower than on the same day last year, when the reading was 0.14 m.

What is a normal level for the River Marden at Calne in mid-October?

The median for mid-October is 0.15 m. In 8 years out of 10 the reading falls between 0.09 m and 0.33 m, based on 18 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 0.13 m on the gauge does not mean the water is that deep.

What is the water level of Calne today?

On 18 Oct 2026, 02:15 BST, the water level was 0.13 m. Steady over the last 24 hours.

Is Calne rising or falling?

Steady over the last 24 hours.

Is the level of Calne normal?

Normal for mid-October. Compared with 18 years of daily readings for this time of year.

What is the highest water level ever recorded at Calne?

The highest level on record is 1.28 m on September 23, 2024. The lowest is 0.02 m on July 3, 2010.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:531112 (Agency page)
Coordinates
51.43837, -2.00355 (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 0.13 m 2026-10-18 01:15 Provisional

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How to cite

Environment Agency: Calne (ea:531112). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/wiltshire/calne

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.