UK National Tide Gauge Network | National Tidal and Sea Level Facility

The UK national network of sea level gauges was established after violent storms in the North Sea in 1953 resulted in serious flooding. The network provides high quality sea level information to provide warning of possible flooding of coastal locations around the British Isles.

The UK National Tide Gauge Network, owned and operated by the Environment Agency, records tidal elevations at 42 locations around the UK coast. These data are also required for research into coastal processes, storm surge behaviour and sea level rise.

The UK National Tide Gauge Network and its data (displayed on this website) are the responsibility of the Environment Agency. As of April 2016, the network is maintained by the Environment Agency and its contractors. The National Oceanography Centre no longer maintain the network. Please direct all enquiries to the Environment Agency’s customer services department.

Find out about the instruments, tide gauges and systems.

Real-time/near real-time data display

Use the links below to view the latest measurements from gauges in the UK Tide Gauge Network

RT – real-time/near real-time data from each tide gauge
ST – site information for each tide gauge location
XL – highest recorded levels for the entire history of the tide gauge location

England – south
Avonmouth: RT | ST | XL
Avonmouth (Portbury): RT
Bournemouth: RT | ST | XL
Dover: RT | ST | XL
Hinkley Point: RT | ST | XL
Ilfracombe: RT | ST | XL
Newhaven: RT | ST | XL
Newlyn: RT | ST | XL
Plymouth (Devonport): RT | ST | XL
Portsmouth: RT | ST | XL
St. Mary’s: RT | ST | XL
Weymouth: RT | ST | XL

England – east
Cromer: RT | ST | XL
Felixstowe: RT | ST | XL
Harwich: RT | ST | XL
Immingham: RT | ST | XL
Lowestoft: RT | ST | XL
North Shields: RT | ST | XL
Sheerness: RT | ST | XL
Whitby: RT | ST | XL

England – west
Heysham: RT | ST | XL
Liverpool: RT | ST | XL
Workington: RT | ST | XL

Wales
Barmouth: RT | ST | XL
Fishguard: RT | ST | XL
Holyhead: RT | ST | XL
Llandudno: RT | ST | XL
Milford Haven: RT | ST | XL
Mumbles: RT | ST | XL
Newport: RT | ST | XL

Scotland
Aberdeen: RT | ST | XL
Kinlochbervie: RT | ST | XL
Leith: RT | ST | XL
Lerwick: RT | ST | XL
Millport: RT | ST | XL
Moray Firth: RT | ST | XL
Port Ellen: RT | ST | XL
Portpatrick: RT | ST | XL
Stornoway: RT | ST | XL
Tobermory: RT | ST | XL
Ullapool: RT | ST | XL
Wick: RT | ST | XL

Northern Ireland
Bangor: RT | ST | XL
Portrush: RT | ST | XL

Isle of Man
Port Erin: RT | ST | XL

Channel Islands
St. Helier: RT | ST | XL

Notes:
Port Ellen tide gauge decomissioned December 2018.
Moray Firth tide gauge decomissioned August 2017.
Harwich tide gauge superseded Felixstowe January 2016.
Portbury (south of River Avon) replaced Avonmouth in 2011.

Chart datum to ordnance datum differences are provided for selected ports.