Tywi at Llyn Brianne Reservoir


Current River Level: -1.01m, falling

Within the usual range for this location

Current level recorded at 10:00am, Saturday 20th January GMT

Change from previous measurement: -0.005m
(recorded at 8:00am, Saturday 20th January GMT)

The normal level of the Tywi at Llyn Brianne Reservoir in average weather conditions is between -1.51m and 0.10m. It has been between these levels for at least 150 days in the past year.

The most recent high is 0.81m, reached on Wednesday 28th October 1998 at 12:00pm.

The highest level ever recorded at the Tywi at Llyn Brianne Reservoir is 1.14m, reached on Thursday 15th October 1987 at 12:00pm.

  • Monitoring Station: Llyn Brianne Reservoir
  • Environment Agency Location ID: 4204
  • Watercourse: Tywi
  • Catchment Area: Carmarthen Bay Rivers
  • UK Hydrometric Area: Towy Group
  • Nearest Town/Village: Llanddewi Brefi
  • Local Authority: Ceredigion
  • Ceremonial County: Dyfed

Nearby Monitoring Locations

Monitoring locations on nearby rivers

Nearby Flood Warning Locations

Rivers in Llanelli
Rivers in Llanelli and the neighbouring areas of Llangennech, Pwll and Burry Port

No current or recent warnings.

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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.

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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.

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