River Levels
River Levels

Taff at Pontypridd, Sion Street

Current River Level


At 5:15am, Sunday 16th February BST
(4:15am, Sunday 16th February GMT)

Above normal for this location

Rising, 0.098 from previous measurement at 5:00am, Sunday 16th February BST

Warning: This data is stale! For some reason, we have not been able to obtain updated levels for over 24 hours. The current displayed level is probably incorrect and you should not rely on it.

There are no flood warning locations near this monitoring station.

Seven Day Level Chart

Long Term Level Chart

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.

Location and Technical Data

  • Monitoring Station: Pontypridd, Sion Street
  • Watercourse: Taff
  • Nearest Town/Village: Pontypridd
  • Local Authority: Rhondda Cynon Taf
  • Ceremonial County: Mid Glamorgan
  • Coordinates: 51°36'18"N 3°20'16"W (51.605117,-3.3379485)
  • OS Grid: ST0743990435 (,)
  • Mapcode (Local): GBR HQ.B33T
  • Mapcode (Global): VH6DK.3X6D
  • Open Location Code: 9C3RJM46+2R
  • Maidenhead Locator System: IO81ho95
  • Natural Resources Wales Location ID: 4220
  • Natural Resources Wales Gauge ID: 4220
  • River Levels Online ID: 4220
  • Operational Area: Taff u s Cynon
  • Catchment Area: South East Valleys
  • UK Hydrometric Area: Taff Group

Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

The usual range of the Taff at Pontypridd, Sion Street is between 0.20m and 1.36m. It has been between these levels for 90% of the time since monitoring began.

The highest level ever recorded at the Taff at Pontypridd, Sion Street is 4.39m, reached on Sunday 16th February 2020 at 4:15am.

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.

Nearby Monitoring Locations

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