Upper Clydach River

The only gauge on the Upper Clydach River is normal and steady.

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

See the Upper Clydach River on the live map →

Every gauge on the Upper Clydach River, right now

Gauge km above
the mouth		 Level
now		 Against
its record		 Percentile Trend
Pontardawenear Allt-wen 0 0.47 m Normal 82nd ▬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 Upper Clydach River

normalPontardawePontardaweWhere it is in Wales
The course of the Upper Clydach River, 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 Allt-wen, the Upper Clydach River runs 7 km. Its gauge holds 22 years of readings, and that is what today's level is 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.