River Levels
River Levels

River Thames at Maidenhead

Current River Level

2.930m

At 9:15pm, Monday 26th February GMT

Within the usual range for this location

Steady, no change from previous measurement at 9:00pm, Monday 26th February GMT

Latest Flow

147.00 m3/s

(Daily Average)

Recorded on Sunday 25th February

Above normal flow volume

Decrease, -3.00 from previous recording on Saturday 24th February

Flood Warning Areas Covering Here

Moorings and properties closest to the River Thames between Maidenhead, Windsor and Eton

No current or recent warnings.

River Thames from Maidenhead to Windsor and Eton

No current or recent warnings.

Other Nearby Flood Warning Areas

Groundwater flooding in East Maidenhead

No current or recent warnings.

River Thames at Cookham

No current or recent warnings.

River Thames at Maidenhead to Windsor and Eton

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: Maidenhead
  • Watercourse: Thames
  • Nearest Town/Village: Taplow
  • Local Authority: Windsor and Maidenhead
  • Ceremonial County: Berkshire
  • Coordinates: 51°31'26"N 0°42'7"W (51.524146,-0.702103)
  • OS Grid: SU901813 (490140,181380)
  • Mapcode (Local): GBR D6K.H8S
  • Mapcode (Global): VHDWK.SY5G
  • Open Location Code: 9C3XG7FX+M5
  • Maidenhead Locator System: IO91pm55
  • Environment Agency Location ID: 2604TH
  • Environment Agency Gauge ID: 2604TH-level-stage-i-15_min-mASD
  • 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: 19m 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 Maidenhead is between 2.27m and 3.55m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Thames at Maidenhead over the past 12 months has been between 2.22m and 2.90m. It has been between these levels for at least 151 days in the past year.

The highest level ever recorded at the River Thames at Maidenhead is 3.87m, reached on Saturday 4th January 2003 at 1:00pm.

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.

View the catchment for River Thames at Maidenhead.

Nearby Monitoring Locations

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