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Chew Magna Reservoir water level

River gauge, Somerset, United Kingdom

Directions

Right now

Latest reading

Surface elevation

52.65m Up 0.02 m over the last 24 hours

45 50 55 60

History

History
52.5552.6052.65mOct 12Oct 14Oct 16Oct 18Oct 1952.5552.6052.65mOct 12Oct 16Oct 19
52.553.053.5mSep 19Sep 27Oct 4Oct 12Oct 1952.553.053.5mSep 19Oct 4Oct 19
Surface elevation

What this means

The Environment Agency has Chew Magna Reservoir at 52.65 m. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

It is on the way up, by 0.02 m over the past 24 hours. The 30-day range is 52.19 m – 53.53 m.

Over the past seven days the change adds up to +0.09 m.

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

Key numbers

Lowest and highest in 30 days
52.19 m – 53.53 m
Lowest and highest in 12 months
52.25 m – 53.51 m

For anglers and canoeists

Without a reference range, compare today with the chart: a sharp rise usually means coloured water.

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

Weather at the gauge

Rain in the last 3 days: 2.6 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 13° 8° 4.1 mm, 94% Wind 17 km/h
20 Tue 12° 7° 10 mm, 98% Wind 16 km/h
21 Wed 11° 8° 29 mm, 65% Wind 29 km/h
22 Thu 14° 8° 7.0 mm, 94% Wind 28 km/h
23 Fri 14° 8° 14 mm, 92% Wind 38 km/h
24 Sat 15° 8° 1.4 mm, 76% Wind 29 km/h
25 Sun 17° 12° 4.0 mm, 72% Wind 27 km/h

Forecast: Open-Meteo

Sunrise 07:41 AM Sunset 06:11 PM Daylight 10 hr, 30 min First quarter 62%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Chew Magna LevelRiver gauge, Winford Brook 0.16 m Normal ±0 0.0 km
Chew StokeRiver gauge, Chew Stoke Brook 0.01 m Lowest on record ±0 1.7 km
Colliters BrookRiver gauge 0.01 m Low ±0 6.8 km
Bristol Bedminster St Johns Lane UpstreamRiver gauge, River Avon 0.34 m Normal +0.01 m 7.9 km
Ashton ValeRiver gauge, River Avon 0.90 m Low −0.03 m 8.0 km
Compton DandoRiver gauge, River Chew 0.45 m Very low +0.01 m 8.1 km
BrislingtonRiver gauge, Brislington Brook 0.04 m Very low ±0 8.6 km
Bristol Harbour Passage StreetRiver gauge, Bristol Frome 6.15 m Very low −0.01 m 10.0 km

Questions and answers

Is Chew Magna Reservoir really 52.65 m deep?

No. 52.65 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 Chew Magna Reservoir today?

On 19 Oct 2026, 21:15 BST, the surface elevation was 52.65 m. Up 0.02 m over the last 24 hours.

Is Chew Magna Reservoir rising or falling?

Up 0.02 m over the last 24 hours. Up 0.09 m over the last 7 days.

Is the level of Chew Magna Reservoir 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:53160
Coordinates
51.36697, -2.62188 (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 52.65 m 2026-10-19 20:15 Provisional

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Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

Environment Agency: Chew Magna Reservoir (ea:53160). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/somerset/chew-magna-reservoir

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.