River Levels
River Levels

Tide at Harwich

Latest Tidal Level


At 3:45am, Sunday 21st July BST
(2:45am, Sunday 21st July GMT)

Within the usual range for this location

Falling, -0.140 from previous measurement at 3:30am, Sunday 21st July BST

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

Harwich Town, Dovercourt and Bathside Bay

No current or recent warnings.

The Suffolk and Essex coast from Felixstowe to Clacton including Orwell and Stour estuaries

No current or recent warnings.

The Suffolk coast at Felixstowe, from the Pier to the Port

No current or recent warnings.

Other Nearby Flood Warning Areas

The Parkeston Quay and the Ramsey River

No current or recent warnings.

The north and south banks of the Stour estuary, from Shotley Gate, to and including Brantham

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: Harwich
  • Watercourse: Tide
  • Nearest Town/Village: Harwich
  • Local Authority:
  • Ceremonial County: Essex
  • Coordinates: 51°56'52"N 1°17'31"E (51.947978,1.292108)
  • OS Grid: TM 2634 3284 (626340,232841)
  • Mapcode (Local): GBR VQK.X2X
  • Mapcode (Global): VHLCG.B9YJ
  • Open Location Code: 9F33W7XR+5R
  • Maidenhead Locator System: JO01pw57
  • Environment Agency Location ID: E71439
  • Environment Agency Gauge ID: E71439-level-tidal_level-Mean-15_min-mAOD
  • River Levels Online ID: 6283
  • Operational Area: Essex TraC
  • Catchment Area: Anglian Transitional & Coastal
  • UK Hydrometric Area: Stour (Essex and Suffolk)
  • 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 Tide at Harwich is between -1.75m and 2.41m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Tide at Harwich over the past 12 months has been between -1.88m and 2.67m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the Tide at Harwich is 4.02m, reached on Saturday 31st January 1953 at 11:00pm.

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.

Nearby Monitoring Locations

There are no other monitoring stations on the Tide

There are no other monitored rivers nearby

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