River Levels
River Levels

River Thames at Trowlock Island

Current River Level

4.590m

At 11:45am, Saturday 2nd November GMT

Within the usual range for this location

Steady, no change from previous measurement at 11:30am, Saturday 2nd November GMT


Important! The levels for this location are measured relative to sea level, not relative to the riverbed. The levels shown here do not, therefore, necessarily represent the actual depth of the water.

Flood Warning Areas Covering Here

River Thames at Trowlock Island

No current or recent warnings.

Other Nearby Flood Warning Areas

River Thames at Teddington

No current or recent warnings.

River Thames at Kingston-upon-Thames

No current or recent warnings.

Properties closest to the River Thames from Raven's Ait to Teddington Weir

No current or recent warnings.

River Thames from Hampton and Thames Ditton to Teddington

No current or recent warnings.

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: Trowlock Island
  • Watercourse: Thames
  • Nearest Town/Village: Trowlock Island
  • Local Authority: Richmond upon Thames
  • Ceremonial County: Greater London
  • Coordinates: 51°25'26"N 0°18'30"W (51.423993,-0.308538)
  • OS Grid: TQ177708 (517700,170800)
  • Mapcode (Local): GBR 78.4WM
  • Mapcode (Global): VHGR8.LGRQ
  • Open Location Code: 9C3XCMFR+HH
  • Maidenhead Locator System: IO91uk21
  • Environment Agency Location ID: 3404TH
  • Environment Agency Gauge ID: 3404TH-level-stage-i-15_min-mAOD
  • River Levels Online ID: 7269
  • Water Information System ID: 3404TH
  • Operational Area: Lower Thames
  • Catchment Area: Maidenhead and Sunbury
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Level Datum: Above Ordnance Datum (AOD)

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 River Thames at Trowlock Island is between 4.42m and 5.00m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Thames at Trowlock Island over the past 12 months has been between 4.42m and 5.14m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the River Thames at Trowlock Island is 5.58m, reached on Wednesday 7th March 2007 at 5:15pm.

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

Nearby Monitoring Locations

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