Peris at Nant Peris


Current River Level: 0.746m, falling

Within the usual range for this location

Current level recorded at 6:00pm, Wednesday 21st November GMT

Change from previous measurement: -0.001m
(recorded at 4:00pm, Wednesday 21st November GMT)

The normal level of the Peris at Nant Peris in average weather conditions is between 0.68m and 1.43m. It has been between these levels for at least 150 days in the past year.

The usual range of the Peris at Nant Peris in more extreme weather conditions is between 0.73m and 1.42m. It has been between these levels for 90% of the time since monitoring began.

The most recent high is 1.94m, reached on Friday 13th November 2009 at 8:30pm.

The highest level ever recorded at the Peris at Nant Peris is 2.04m, reached on Wednesday 12th August 1992 at 5:30am.

  • Monitoring Station: Nant Peris
  • Environment Agency Location ID: 4177
  • Watercourse: Peris
  • Operational Area: Gwyrfai Seiont
  • Catchment Area: Llyn and Eryri
  • UK Hydrometric Area: Glaslyn Group
  • Nearest Town/Village: Llanberis
  • Local Authority: Gwynedd
  • Ceremonial County: Gwynedd

Nearby Monitoring Locations

There are no other monitoring stations on the Peris
Monitoring locations on nearby rivers
Taming the Flood by Jeremy Purseglove

Nearby Flood Warning Locations

There are no flood warning locations near this monitoring station.

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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.

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.

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