Mumbles Monitoring Station


Latest Tidal Level: 2.668m

Current level recorded at 10:00pm, Thursday 13th December GMT

Change from previous measurement: 0.142m
(recorded at 9:15pm, Thursday 13th December GMT)

Levels in tidal waters are measured from mean sea level, not from the river bed. They can, therefore, be negative, and do not give any indication of water depth. Tidal levels are not necessarily updated frequently, and may not reflect tidal movements throughout the day.

The normal level of the Mumbles Monitoring Station in average weather conditions is between -4.52m and 5.45m. It has been between these levels for at least 150 days in the past year.

The usual range of the Mumbles Monitoring Station in more extreme weather conditions is between -4.24m and 4.96m. It has been between these levels for 90% of the time since monitoring began.

  • Monitoring Station: Mumbles
  • Environment Agency Location ID: E72939
  • Watercourse:
  • Operational Area: Swansea Bay
  • Catchment Area: Tawe to Cadoxton Transitional & Coastal
  • UK Hydrometric Area: Loughor Group
  • Nearest Town/Village:
  • Local Authority:
  • Ceremonial County: West Glamorgan

Nearby Monitoring Locations

There are no other monitored rivers nearby
Taming the Flood by Jeremy Purseglove

Nearby Flood Warning Locations

Mumbles Tidal
Tidal area at Mumbles

No current or recent warnings.

Swansea Tidal
Tidal area at Swansea

No current or recent warnings.

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.

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