River Severn · Afon Hafren

All eleven gauges on the River Severn are normal and steady.

Read from 11 river-level gauges at 12:00 on 28 October 2026 GMT, and read again every fifteen minutes.

See the River Severn on the live map →

Every gauge on the River Severn, right now

Gauge km above
the mouth		 Level
now		 Against
its record		 Percentile Trend
Llanidloesnear Felindreregulated 334 1.25 mASD Normal 69th ▬steady
Dolwennear Llanidloes 330 0.89 m Normal 90th ▬steady
Caerswsnear Caersŵs 318 1.40 mASD Normal 76th ▬steady
Newtownnear Penygloddfa 304 0.82 m Normal 81st ▬steady
Abermulenear Green Lane 296 1.24 mASD Normal 85th ▬steady
Munlynnear Forden (Ffordun) 286 1.21 m Normal 80th ▬steady
Buttingtonnear Welshpool (Y Trallwng) 272 2.04 m Normal 79th ▬steady
Llandrinionear Haughton 256 3.27 mASD Normal 80th ▬steady
Crew Greennear Melverley 251 3.09 mASD Normal 81st ▬steady
Cae Howelnear Ponthen 247 2.66 mASD Normal 80th ▬steady
Montfordnear Shrawardine 238 2.79 mASD Normal 83rd ▬steady

The percentile is where a gauge's latest reading sits in its own record of readings, not how full the channel is. A river sits low most of the time, so a high percentile takes surprisingly little water: at Beddgelert on the Glaslyn, with thirty-six years of record, the ninety-fourth percentile is about 1.05 m - 1.38 m below the highest level ever recorded there.

The course of the River Severn

normalCae HowelLlandrinio River StationCrew GreenMontfordButtington River StationMunlyn River StationAbermule River StationNewtown River StationCaersws River StationDolwen River StationLlanidloes River StationCae HowelButtingtonMunlynAbermuleNewtownDolwenLlanidloesWhere it is in Wales
The course of the River Severn, drawn from Ordnance Survey Open Rivers. Each gauge is coloured by where its level sits today. A grey dot is a gauge we do not rank, and a hollow ring is one that is not reporting. North is up.

About this river

From its highest reach down to its mouth near Sudbrook, the Afon Hafren runs 349 km. The lowest 88 km are tidal, where a gauge reads the tide as much as the river. The course above is drawn in two weights: the bright line is where Ordnance Survey Open Rivers calls the channel the Afon Hafren, and the faint line, about 94 km of it, is the same water running under another name, past a lake or a weir pool. Its gauges hold between 10 and 70 years of readings, and that is what today's levels are compared with.

This is not a flood-warning service. For flood warnings in Wales go to Natural Resources Wales; in England, the Environment Agency. In an emergency call 999. The map cannot see the sea, surface water, drains, or any one address.