Tidal predictions for ports in the UK and Ireland | National Tidal and Sea Level Facility National Tidal and Sea Level Facility Tides Storm surges Products About About tides Tides – questions and answers Sea level – questions and answers The Doodson-Légé Tide Predicting Machine Tide clocks and watches Tidal river bores The River Dee / Afon Dyfrdwy The River Mersey UK National Tide Gauge Network Data availability Tidal predictions – UK and Ireland UK South Atlantic Network Gibraltar sea level station Tidal predictions – South Atlantic Tide gauge instruments Definitions of tidal levels Chart datum and ordnance datum Permanent Service for Mean Sea Level (PSMSL) (external link) Engineers’ page Proudman Building, Liverpool weather station About storm surges Tide-surge model Surge model forecast Surge model archive Surge model archive: 2004–2019 Surge model ensemble forecasting Skew surges Skew surge history: England – south Skew surge history: England – east Skew surge history: England – west Skew surge history: Wales Skew surge history: Scotland Skew surge history: Northern Ireland Skew surge history: Isle of Man Skew surge history: Channel Islands Sea level trends Sea level trend charts Software Tidal predictions for ports in the UK and Ireland Tidal predictions for the next 28 days are available for ports in the UK and Ireland. Predictions spanning one year for British overseas and independent territories, the South Atlantic, and Gibraltar are also available. Tidal predictions Use the links below to view predictions at selected locations HL high and low water predictions for the next 28 days RT high/low waters are not well defined – use predictions shown on real-time plots XT highest and lowest predicted tides from 2008 to 2026 England – south Avonmouth HL XT Bournemouth RT XT Dover HL XT Hinkley Point HL XT Ilfracombe HL XT Newhaven HL XT Newlyn HL XT Plymouth (Devonport) HL XT Portsmouth HL XT St. Mary’s HL XT Southampton HL Weymouth HL XT England – east Cromer HL XT Felixstowe HL XT Harwich HL XT Immingham HL XT Lowestoft HL XT North Shields HL XT Sheerness HL XT Whitby HL XT England – west Blackpool HL Formby HL Heysham HL XT Hilbre Island HL Liverpool HL XT Southport HL Workington HL XT Wales Barmouth HL XT Fishguard HL XT Holyhead HL XT Llandudno HL XT Milford Haven HL XT Mumbles HL XT Newport HL XT Scotland Aberdeen HL XT Kinlochbervie HL XT Leith HL XT Lerwick HL XT Millport HL XT Moray Firth HL XT Port Ellen RT | XT Portpatrick HL XT Stornoway HL XT Tobermory HL XT Ullapool HL XT Wick HL XT Northern Ireland Bangor HL XT Donaghadee HL Derry / Londonderry HL Portrush HL XT Ireland Cobh HL Dublin HL Limerick HL Rosslare HL Sligo HL Isle of Man Port Erin HL XT Channel Islands St. Helier HL XT 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. Ports in Ireland and non-network locations are not marked on the above map Chart datum to ordnance datum differences are provided for selected ports. 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