River Levels
River Levels

Horton Mill FWS Monitoring Station

Current River Level

19.094m

At 4:32am, Monday 27th January GMT

Above normal for this location

Rising, 0.006 from previous measurement at 4:32am, Sunday 26th January GMT

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.


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.

Nearby Flood Warning Areas

Colne Brook at Iver and Colnbrook

No current or recent warnings.

Colne Brook at Colnbrook

No current or recent warnings.

River Colne and Frays River at West Drayton and Stanwell Moor

No current or recent warnings.

River Thames at Wraysbury

No current or recent warnings.

Properties closest to the River Thames at Wraysbury from Old Windsor Weir to Magna Carta Island

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: Horton Mill FWS
  • Watercourse:
  • Nearest Town/Village: Horton
  • Local Authority: Windsor and Maidenhead
  • Ceremonial County: Berkshire
  • Coordinates: 51°28'18"N 0°31'52"W (51.471739,-0.531201)
  • OS Grid: TQ0211375776 (502113,175776)
  • Mapcode (Local): GBR GB0.QHW
  • Mapcode (Global): VHFTH.R81L
  • Open Location Code: 9C3XFFC9+MG
  • Maidenhead Locator System: IO91rl63
  • Environment Agency Location ID: 2899BTH
  • Environment Agency Gauge ID: 2899BTH-level-stage-i-15_min-mAOD
  • 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.

Nearby Monitoring Locations

There are no other monitored rivers nearby

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