Tidal predictions for UK & Irish ports

Tidal predictions for the next 28 days are available for UK & Irish ports. Predictions spanning one year for British overseas and independent territories, the South Atlantic and Gibraltar are also available.

Use the links below to view predictions at selected locations
    HL – Click orange links below for high and low water predictions for the next 28 days
    RT – Click red links below for places where high/low waters are not well defined – use predictions shown on real-time plots
    XT – Click blue links below for highest and lowest predicted tides from 2008 to 2026
    HC – Click purple links below for harmonic constants at each port (click here for tabulated list)

 

England – South

Avonmouth HL | XT | HC
Bournemouth RT | XT | HC
Dover HL | XT | HC
Hinkley Point HL | XT | HC
Ilfracombe HL | XT | HC
Newhaven HL | XT | HC
Newlyn HL | XT | HC
Plymouth (Devonport) HL | XT | HC
Portsmouth HL | XT | HC
St. Mary's (Isles of Scilly) HL | XT | HC
Southampton HL | HC
Weymouth HL | XT | HC

England – East

Cromer HL | XT | HC
Harwich HL | XT | HC
Immingham HL | XT | HC
Lowestoft HL | XT | HC
North Shields HL | XT | HC
Sheerness HL | XT | HC
Whitby HL | XT | HC

England – West

Blackpool HL
Formby HL
Heysham HL | XT | HC
Hilbre Island HL | HC
Liverpool HL | XT | HC
Southport HL
Workington HL | XT | HC

Isle of Man

Port Erin HL | XT | HC

Channel Islands

St. Helier (Jersey) HL | XT | HC

Scotland

Aberdeen HL | XT | HC
Kinlochbervie HL | XT | HC
Leith HL | XT | HC
Lerwick HL | XT | HC
Millport HL | XT | HC
Moray Firth HL | XT | HC
Port Ellen RT | XT | HC
Portpatrick HL | XT | HC
Stornoway HL | XT | HC
Tobermory HL | XT | HC
Ullapool HL | XT | HC
Wick HL | XT | HC

Wales

Barmouth HL | XT | HC
Fishguard HL | XT | HC
Holyhead HL | XT | HC
Llandudno HL | XT | HC
Milford Haven HL | XT | HC
Mumbles HL | XT | HC
Newport HL | XT | HC

Northern Ireland

Bangor HL | XT | HC
Donaghadee HL
Londonderry HL | HC
Portrush HL | XT | HC

Éire / Ireland

Cobh HL | HC
Dublin HL | HC
Limerick HL
Rosslare HL | HC
Sligo HL

UK & Ireland map

Notes:
Moray Firth tide gauge has now ceased operation
Felixstowe tide gauge is superseded by Harwich

Secondary ports and ports in Éire are not marked on the above map

Chart datum to ordnance datum differences are provided for selected UK and Irish ports – Read more →

 

UK Highest and lowest tidal predictions for twenty years from 2008

Highest and lowest tidal predictions (XT) between 2008–2026 are provided for locations in the UK Tide Gauge Network.

Predictions include:

  • highest and lowest tidal elevations during this period
  • highest and lowest tidal elevations for each year
  • ten highest and lowest tidal elevations during this period
  • mean high water springs and mean low water springs
  • mean high water neaps and mean low water neaps