Mawddach at Tyddyn Gwladys


Current River Level: 0.19m, falling

Within the usual range for this location

Current level recorded at 11:00pm, Monday 20th September BST
(10:00pm, Monday 20th September GMT)

Change from previous measurement: -0.002m
(recorded at 9:00pm, Monday 20th September BST)

The usual range of the Mawddach at Tyddyn Gwladys is between 0.16m and 1.22m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Mawddach at Tyddyn Gwladys over the past 12 months has been between 0.15m and 1.16m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the Mawddach at Tyddyn Gwladys is 4.08m, reached on Tuesday 3rd July 2001 at 8:15pm.

Note that this data may not take account of recent measurements, as we wait until a level has been verified by Natural Resources Wales before adding it to our records.

  • Monitoring Station: Tyddyn Gwladys
  • Watercourse: Mawddach
  • Nearest Town/Village: Ganllwyd
  • Local Authority: Gwynedd
  • Ceremonial County: Gwynedd
  • Natural Resources Wales Location ID: 4150
  • Natural Resources Wales Gauge ID: 4150
  • Operational Area: Mawddach
  • Catchment Area: Meirionnydd
  • UK Hydrometric Area: Dyfi Group

Nearby Monitoring Locations

There are no other monitoring stations on the Mawddach
There are no other monitored rivers nearby
Taming the Flood by Jeremy Purseglove

Nearby Flood Warning Locations

There are no flood warning locations near this monitoring station.

Long term graphs will work better if you rotate your fondleslab into landscape mode.

Past Week

Long Term

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

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