Please use tidal harmonic predictions with a sensible margin of safety. The effect of air pressure on tidal height can be substantial. Tide tables assume a standard pressure of 1013 hectoPascal (hPa). One hPa, or millibar, variation from that will change the sea level by one centimetre. Mean sea levels may also be raised or lowered by strong winds depending upon the topographical features of the area.
Tidal Hour:
(Manual calculation) (Dover)
Small tidal stream inaccuracies can develop when advancing beyond HW Dover +6. Because of this we only enable today's tidal stream chartlets to advance 24 hours.
Future tidal planning is best accomplished by using East Down Yacht Club's future tides predictor below.
The above image represents the current tidal streams offshore of this haven. Streams attaining three knots and above are highlighted by red arrows . All times are in local time with red text indicating springs, blue indicating neaps and gray between tidal events. Click [+] to advance the estimate by an hour and click [-] to step back.
Future tidal planning is best accomplished by using East Down Yacht Club's future tides predictor below.
Arrows represent the direction of tidal streams with lighter or shorter arrows indicating weaker streams. Stronger streams are indicated by heavier or longer arrows, and as mentioned above, red arrows flagging rates of 3 knots and above. Numerals represent [mean neap, mean spring] rates in tenths of a knot. For example the numbers 12,23 would indicate a mean neap of 1.2 knots and a mean spring of 2.3 knots.
More local tidal details
Today's Strangford tides — High waters: 10:29, 22:43, Low waters: 04:16, 16:29
Today's Dover tides — High waters: 08:22, 20:53, Low waters: 03:20, 15:51
We are now
approaching the next tidal event that will be Springs.
High Water Strangford Quay Dover +0147 springs, 0157 neaps MHWS 3.6m MHWN 3.1m MLWN 0.9m MLWS 0.4m Local high water Dover +0145 or 2 hours 15 minutes after high water at Belfast
Inside the Lough tides decrease significantly 6 Kn between Strangford & Portaferry 4 Kn at Ballyhenry Island 1.5 Kn at Don O’Neill Island 1.5 Kn in the pool
This tool can be used to estimate future costal tidal streams for this area. All that is required are two simple steps:
Step 1: What is the Dover High Water for the target date?
Use a current Dover Tide Table to find Dover High Water for the target date. The National Oceanography Centre offers online tidal predictions for up to 28 days from today. Click here to open their tide table for Dover
Step 2: Input the target date's Dover High Water
Hour:
Minute:
Taking a mean tidal offset from Dover's tide, we expect your targetted date's associated local tide at to be:
High waters: Low waters:
Data based on an average tide is only accurate to within one hour, if you more precise times are required use the ISA tidal predictions, with Strangford offset -01:00.
Tidal Hour:
()
For planning purposes only, not for navigation. Please see our terms and conditions.
The above wind speeds are expressed in the Beaufort scale. Red indicates strong winds of 6 or higher.
Headline: Cloudy with patchy light drizzle Wednesday.
This Evening and Tonight: Dry for much of the night. Clear periods at first with mist and fog re-forming, Becoming cloudy later tonight with patchy drizzle towards the North Coast. Minimum Temperature 3C.
Wednesday: Mainly cloudy with extensive mist and fog, only slowly dispersing. There will be a little drizzle, mostly in the north. Maximum Temperature 12C.
Outlook for Thursday to Saturday: Mainly dry and rather cloudy on Thursday and Friday. Early rain quickly clearing on Saturday then sunny spells, a few showers and turning colder.
Click [+] to advance by twelve hours and click [-] to step back. The forecasted time is presented in the top left hand corner of the pressure chart. Click the image to display it in a full window.
Contains public sector information licensed under the Open Government Licence
Belfast Maritime Rescue Co-ordination Centre (MRCC). Operational Area: Northern Ireland/ Irish Republic Border, Lough Foyle to Northern/Irish Republic Border Carlingford Lough. Belfast Coastguard (MRSC) VHF Ch 16, liaises closely with IRCG. Emergencies are worked on 16, 67 and working channel.
Alternatively, or if ashore, phone 999 and 112 and ask for ‘Marine Rescue’. Police, Fire and Rescue are also available on this number. Belfast (MRSC) may be contacted directly on +44 2891 463 933. An inshore lifeboat is maintained at Portaferry.
Other useful contacts in this area: East Down Yacht Club, Comber Road, Killyleagh, Tel:+44 28 44 828375 Web: http://www.edyc.co.uk/ Killyleagh Yacht Club Tel:+44 28 44 828250 Police: +44 4461 5011, Medical Clinic +44 4461 3016
The key detail charts are British Admiralty 2156 ‘Strangford Lough’, the scale of 37,500:1. and for the ‘Narrows’ 2159 'Strangford Narrows', the scale of 12,500:1, including ‘Strangford’, the scale of 5,000:1. Imray chart C62 – ‘Irish Sea’. Northern Ireland Ordinance Survey No. 21 at a scale of 1:50,000.
Thank you for using eOceanic, can you suggest how to make it better?
Please note eOceanic makes no guarantee of the validity of this information. Whilst every effort has been made to use valid source data and ensure calculations are correct, no warranty is made. All tidal predictions are approximations and differences used to calculate times and heights at secondary ports are based on stated averages that reduce precision. This information is provided as a guide only and is not to be used for navigation. For navigation please refer to published tidal tables. Actual height and time of tides are affected by barometric pressure and other weather effects. Any data provided on this page is entirely used at your own risk and you must read our legal page if you view data on this site.
. All times are in local time with red text indicating springs, blue indicating neaps and gray between tidal events. Click 
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