River Levels
River Levels

Sherston Avon at St Johns Weir

Current River Level


At 9:45am, Tuesday 23rd July BST
(8:45am, Tuesday 23rd July GMT)

Within the usual range for this location

Steady, no change from previous measurement at 9:30am, Tuesday 23rd July BST

Flood Warning Areas Covering Here

Sherston Avon at Malmesbury

No current or recent warnings.

Upper Bristol Avon area

No current or recent warnings.

Other Nearby Flood Warning Areas

Tetbury Avon at Malmesbury

No current or recent warnings.

Sherston Avon from Luckington to Malmesbury

No current or recent warnings.

Dauntsey Brook at Dauntsey, Olivemead Lane, Sodom Lane, Church Lane and Swallet Gate areas

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: St Johns Weir
  • Watercourse: Sherston Avon
  • Nearest Town/Village: Malmesbury
  • Local Authority: Wiltshire
  • Ceremonial County: Wiltshire
  • Coordinates: 51°34'51"N 2°5'41"W (51.580872,-2.094819)
  • OS Grid: ST9352686895 (393526,186895)
  • Mapcode (Local): GBR 2QZ.Z1M
  • Mapcode (Global): VH95S.MJXG
  • Open Location Code: 9C3VHWJ4+83
  • Maidenhead Locator System: IO81wn89
  • Environment Agency Location ID: 531158
  • Environment Agency Gauge ID: 531158-level-stage-i-15_min-m
  • River Levels Online ID: 3408
  • Water Information System ID: 530591
  • Operational Area: Bristol Avon Rural
  • Catchment Area: Avon Bristol and North Somerset Streams
  • UK Hydrometric Area: Avon (Bristol)
  • Environment Agency Region: South West

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 Sherston Avon at St Johns Weir is between 0.09m and 0.54m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Sherston Avon at St Johns Weir over the past 12 months has been between 0.11m and 0.70m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the Sherston Avon at St Johns Weir is 1.48m, reached on Sunday 25th November 2012 at 7:30am.

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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