River Levels
River Levels

River Yare at Rockland St Mary

Latest Tidal Level

1.160m

At 6:30am, Monday 23rd December GMT

Above normal for this location

Rising, 0.110 from previous measurement at 2:30am, Monday 23rd December GMT


This is a tidal level, measured from mean sea level rather than from the river bed. It can, therefore, be negative, and does not give any indication of water depth. Tidal levels are not necessarily updated frequently, and may not reflect tidal movements throughout the day.

Flood Warning Areas Covering Here

Riverside properties along the tidal River Yare including Cantley, Brundall and Reedham

Flood Warning

The tidal River Yare from Thorpe St Andrew to Breydon Water

Flood Alert

Other Nearby Flood Warning Areas

The tidal River Yare from Thorpe St Andrew to Loddon

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: Rockland St Mary
  • Watercourse: River Yare
  • Nearest Town/Village: Rockland St Mary
  • Local Authority: South Norfolk
  • Ceremonial County: Norfolk
  • Coordinates: 52°35'25"N 1°26'12"E (52.590375,1.436891)
  • OS Grid: TG 32897 04722 (632895,304724)
  • Mapcode (Local): GBR WJB.Q26
  • Mapcode (Global): WHMTX.14HZ
  • Open Location Code: 9F43HCRP+4Q
  • Maidenhead Locator System: JO02ro21
  • Environment Agency Location ID: E21238
  • Environment Agency Gauge ID: E21238-level-tidal_level-i-15_min-mAOD
  • River Levels Online ID: 6214
  • Water Information System ID: T341503
  • Operational Area: Yare
  • Catchment Area: Broadland Rivers
  • UK Hydrometric Area: Norfolk Rivers Group
  • Environment Agency Region: Anglian
  • 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 Yare at Rockland St Mary is between 0.00m and 1.10m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Yare at Rockland St Mary over the past 12 months has been between -0.04m and 0.96m. It has been between these levels for at least 152 days in the past year.

The highest level ever recorded at the River Yare at Rockland St Mary is 1.38m, reached on Friday 9th November 2001 at 5:15am.

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

Other monitoring locations on the River Yare

River Yare Map

There are no other monitored rivers nearby

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