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Home › Rivers › River Wylye

River Wylye water levels

Live levels from 3 monitoring stations across Wiltshire, updated every 15 minutes.

3stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
Brixton DeverillMonkton Deverill0.18 mASD 46m agoNormal—
12.6 km by river
HeytesburyHeytesbury0.63 m 46m agoLow—
26.0 km by river
South NewtonSouth Newton0.14 m 31m agoNormal—

Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.

Contains OS data © Crown copyright and database rights 2026.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Wylye above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

2 gauged tributaries, 2 gauges

Chitterne Brook

Joins the Wylye between Heytesbury and South Newton, no more than 17.4 km by river above South Newton.

Codford0.04 mASD 31m agoNormal

Its water passes South Newton and every gauge below it on the Wylye. It does not pass Heytesbury or the gauges above it.

River Till

Joins the Wylye between Heytesbury and South Newton, no more than 16.8 km by river above South Newton.

Shrewton-0.09 mASD 31m agoLow

Its water passes South Newton and every gauge below it on the Wylye. It does not pass Heytesbury or the gauges above it.

Where the Wylye goes

Below South Newton, its water next reaches Salisbury Harnham Bridge, a gauge on River Avon, 10.4 km by river downstream.

Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.

Streams without a gauge

Named streams on the river map that flow into the Wylye and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.

Storm overflows upstream

6 storm overflows are traced upstream of South Newton, the Wylye’s lowest gauge on the river map: on the Wylye itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 5 not discharging
  • 1 offline or silent: 0 monitor offline, 0 status unknown, 1 no live feed

Official figures for 2025, for the overflows traced upstream of South Newton: 243 spills over 3,211 hours in total, across all 6.

Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Wylye includes the smaller streams that join it there.

Above Brixton Deverill, the Wylye’s highest gauge1 overflow
  • Monkton Deverill Wrc Not discharging
    Wessex Water · into River Wylye · 1.0 km by river above Brixton Deverill · 2025: 0 spills, 0 h
Between Heytesbury and South Newton2 overflows
  • Shrewton Water Recycling Centre Not discharging
    Wessex Water · into River Till · 13.1 km by river above South Newton · 2025: 116 spills, 2,679 h
  • Hanging Langford Pumping Station Not discharging
    Wessex Water · into River Wylye Via A Reed Bed · 7.2 km by river above South Newton · 2025: 84 spills, 242 h · reaches the river through a sewer, so where it enters is approximate
Above E821853 overflows
  • George Street CSO No live feed
    Wessex Water · into The Were · 5.9 km by river above E82185 · 2025: 3 spills, 0.9 h
  • Warminster WwTW Not discharging
    Wessex Water · into River Wylye · 5.4 km by river above E82185 · 2025: 18 spills, 238 h
  • Calveswater Pumping Station Not discharging
    Wessex Water · into The Were Via Sws · 4.3 km by river above E82185 · 2025: 22 spills, 51 h · reaches the river through a sewer, so where it enters is approximate

1 other overflow within 3 km of these gauges is placed below the Wylye’s lowest gauge or on another river, so not listed.

A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →

Live status: © Wessex Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.

Water samples

Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.

25 sampling points on the River Wylye and the streams that join it above South Newton, and below it. 11 have a sample from the last 12 months; 12 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.

Above South Newton River Wylye 8 points, 5 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
Till at upstream of Homanton BridgeRiver Till14 km18 Sep 2026 · 20 days agoOxygen 99.1% Jun 2026Temp 14 °C Jun 2026pH 7.65 Jun 2026Conductivity 577 µS/cm Jun 2026
Wylye downstream of Fisherton De La MereRiver Wylye12 km21 Jul 2026 · 3 months agoOxygen 93%Temp 14.5 °CpH 8.24Ammonia 0.012 mg/l
River Till at Winterbourne StokeRiver Till10 km1 Sep 2026 · 37 days agoOxygen 145.7% Aug 2026Temp 16.1 °C Aug 2026pH 7.62 Aug 2026Ammonia 0.031 mg/l Aug 2026
River Wylye at Steeple Langford BridgeRiver Wylye8.0 km4 Mar 2024 · 2.6 years agoOxygen 115.6%Temp 8.3 °CpH 8.32Ammonia below 0.03 mg/l
River Till at StaplefordRiver Till4.8 km3 Aug 2026 · 2 months agoOxygen 107.3%Temp 16 °CpH 8.33Ammonia 0.014 mg/l
River Wylye upstream of Great WishfordRiver Wylye3.6 kmLast sampled 5 Apr 2000, before the imported period
Chitterne Brook at CodfordChitterne Brook17 kmLast sampled 19 Feb 2020, before the imported period
River Wylye at Codford St Mary BridgeRiver Wylye16 kmLast sampled 25 Mar 2009, before the imported period
Above HEYTESBURY A36 13 points, 4 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
River Wylye upstream of Hill Deverill Fish Farm 1River Wylye9.8 kmLast sampled 23 Jan 2013, before the imported period
River Wylye at B3095 BridgeRiver Wylye8.9 km15 Sep 2026 · 23 days agoOxygen 87.5%Temp 13.7 °CpH 7.8Ammonia 0.038 mg/l
River Wylye at Longbridge DeverillRiver Wylye8.5 kmLast sampled 17 Mar 2010, before the imported period
Shear Water at Crockertonunnamed stream7.7 kmLast sampled 3 Apr 2000, before the imported period
Shearwater at Crockerton Shop Centreunnamed stream7.5 kmLast sampled 23 Mar 2009, before the imported period
Swan River in WarminsterSwan River5.4 km5 Dec 2025 · 10 months agoOxygen 94.4% Aug 2025Temp 15.7 °C Aug 2025pH 8.2 Aug 2025Ammonia below 0.03 mg/l Aug 2025
River Wylye upstream of Warminster sewage treatment worksRiver Wylye5.4 kmLast sampled 23 Nov 2017, before the imported period
River Wylye at Henford MarshRiver Wylye5.0 km10 Jul 2026 · 3 months agopH 8.01
River Were at Calveswater Pumping StationSwan River4.5 kmLast sampled 12 Nov 2021, before the imported period
Wylye Boreham BridgeRiver Wylye3.1 kmLast sampled 17 Mar 2010, before the imported period
River Wylye at Bishopstrow MillRiver Wylye2.4 kmLast sampled 23 Oct 2017, before the imported period
River Wylye at Pit Meads FootbridgeRiver Wylye1.5 kmLast sampled 10 Dec 2004, before the imported period
River Wylye at Norton BavantRiver Wylye0.2 km5 Mar 2026 · 7 months agoOxygen 101%Temp 9.3 °CpH 7.97Ammonia below 0.03 mg/l
Below South Newton 4 points, 3 with samples
Sampling pointWatercourse (map)Below the gaugeLast sampleLatest results (river water)
River Wylye at South NewtonRiver Wylye0.5 km15 Sep 2026 · 23 days agoOxygen 97.3%Temp 16 °CpH 8.08Ammonia below 0.03 mg/l
River Wylye downstream of Great Wishford sewage treatment works at FootbridgeRiver Wylye0.8 km2 Jul 2026 · 3 months agopH 8.31
50 m upstream of Minster BridgeRiver Wylye3.4 km2 Dec 2025 · 10 months agoOxygen 93.7%Temp 8.6 °CpH 8.05Ammonia below 0.03 mg/l
River Wylye at QuidhamptonRiver Wylye4.2 kmLast sampled 3 Oct 2017, before the imported period

Distances are along the river to the gauge named. England's samples only.

FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

Contains OS data © Crown copyright and database rights 2026.

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