River Levels
River Levels

River Thames at Old Windsor Lock

Current River Level

0.210m

At 2:15pm, Monday 7th October BST
(1:15pm, Monday 7th October GMT)

Within the usual range for this location

Rising, 0.010 from previous measurement at 2:00pm, Monday 7th October BST

View downstream gauge levels

Flood Warning Areas Covering Here

River Thames at Wraysbury

No current or recent warnings.

River Thames from Datchet to Shepperton Green

Recent warnings or alerts no longer in force

Other Nearby Flood Warning Areas

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

No current or recent warnings.

River Thames at Old Windsor

No current or recent warnings.

Properties closest to the River Thames at Old Windsor, from Friday Island 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: Old Windsor Lock
  • Watercourse: Thames
  • Nearest Town/Village: Old Windsor
  • Local Authority: Windsor and Maidenhead
  • Ceremonial County: Berkshire
  • Coordinates: 51°27'47"N 0°34'8"W (51.463198,-0.569077)
  • OS Grid: SU995747 (499501,174774)
  • Mapcode (Local): GBR F8V.6XL
  • Mapcode (Global): VHFTH.3H05
  • Open Location Code: 9C3XFC7J+79
  • Maidenhead Locator System: IO91rl11
  • Environment Agency Location ID: 2703TH
  • Environment Agency Gauge ID: 2703TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7172
  • Water Information System ID: 2703TH
  • Operational Area: Lower Thames
  • Catchment Area: Maidenhead and Sunbury
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 16.12m 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 Old Windsor Lock is between 0.10m and 0.35m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Thames at Old Windsor Lock over the past 12 months has been between 0.07m and 0.28m. It has been between these levels for at least 153 days in the past year.

The highest level ever recorded at the River Thames at Old Windsor Lock is 1.94m, reached on Tuesday 11th February 2014 at 2:00am.

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

comments powered by Disqus

RiverLevels.uk is an independent website. It is not associated with the Environment Agency or any other supplier of river level information. All data used on this site is supplied under licence. For queries about the data, please contact the underlying supplier.

RiverLevels.uk is a Good Stuff website.