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|Low Water||High Water|
|01:00 (0m)||01:00 (0m)|
|13:25 (0m)||13:25 (0m)|
|Time to low||3:15|
|Tide height over CD|
|Mean Spring Curve||Mean Neap Curve||Intervening Period|
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 Port Dandy'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 Port Dandy's future tides predictor below.
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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 detailsToday's Bangor tides — High water: , Low water:
Today's Dover tides — High waters: 00:46, 12:59, Low waters: 08:10, 20:23
We are now approaching the next tidal event that will be Neaps.
High Water Dover +0100, as Belfast.
MHWS 3.2m MHWN 2.7m MLWN 0.9m MLWS 0.3m
Tidal planning for vessels approaching Belfast Lough is essential. Vessels approaching from the south will encounter tides that run hard in the sounds. Likewise, vessels approaching from east, or outside the island group, will encounter races with overfalls as they close in on the Copeland Island group. At the eastern tip of Mew Island, the ‘Ram Race’ initiates and extends 1.5 miles south-by-southeast on the flood and up to 1.75 miles north-by-northwest on the ebb.
From Dover HW +0455 to -0115 (Belfast HW +0510 to -0100) the tide floods southeast. Donaghadee Sound’s spring streams can in places reach up to 4.5 knots in both directions making a favourable tide transit a prerequisite for most leisure craft. Streams largely follow the direction of the channel but it should be noted heavy tide rips in a big seaway may cause overfalls to occur across the southeast end of Donaghadee Sound. From the entrance of Strangford Lough, however, through to the inner passage, the stream is comparatively weak, not averaging more than 1.5 knots on springs.
Copeland Sound tides are not as strong but still attain rates of up to 2.5 knots with Spring tides. This is however not the preferred channel owing to the two challenging and unmarked rocky shoals called ‘Platters’ and ‘Ninaen Bushes’, the latter with less than a metre of cover is situated out half a mile off from the north-east point of Copeland Island. Eddies are very strong elsewhere all around the islands group.
Outside the islands, the tides turn about one hour later. On the south going flood, a vast eddy forms to the south of Mew Island. This circles back on itself in the five miles area between the entrance to Donaghadee Sound and Ballyferis Point. Hence the streams off Donaghadee Harbour are 1.5 kn rotary in a clockwise direction on the flood. However, when this vast circular eddy of water courses around to collide with the flood tide to the south-southeast of Mew, the ill-famed Ram Race shows its true colours. Thus the area is at its worst after the recirculation on the second half of the flood circa HW Dover -0230 to +0015 or about local HW (HW Belfast -0215 to +0030 or about local HW). Likewise, the north-northwest race occurs on the latter half of the ebb from HW Dover +0330 to +0630 (HW Belfast +0345 to +0615 or about local LW).
Northern approaches are less complicated however tidal streams remain very strong running up to 5 or 6 kn off salient points to the north of Belfast Lough.
For planning purposes only, not for navigation. Please see our terms and conditions.
Headline: Largely cloudy tonight with patchy rain or drizzle.
This Evening and Tonight: A few clearer spells across southeastern parts but generally cloudy this evening and overnight. A little rain possible, especially in the west but most places remain dry. Minimum Temperature 4C.
Saturday: Mostly cloudy but mild, the best of any brighter or sunnier spells across the east and northeast. Western parts again seeing a few spots of rain but most places dry. Maximum Temperature 10C.
Outlook for Sunday to Tuesday: Fairly settled and mild into next week although quite a lot of cloud, best of any brighter spells in east. A little light rain in west, perhaps more widespread Tuesday.
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.
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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. HM Coastguard's Marine Rescue Sub Centre and a RNLI Atlantic 85 Lifeboat are based in Bangor Marina.
Other useful contacts in this area:
Groomsport Harbour Master VHF 16, Working Channel 8
P: +44 28 9127 8040 M: +44 7702587566
Belfast Harbour Radio on VHF 12/16 or P: +44 2890 553504
Harbour Master Office P: +44 2890 553015
Bangor Marina P: +44 28 9145 3297, VHF Channel 37/80/11 Call sign "Bangor Marina" (24 Hours)
British Admiralty 1753 ‘Belfast Lough and Approaches’, scale of 37,500:1, including ‘Donaghadee Sound’ scale of 15,000:1 and ‘Bangor Bay’ scale of 17,500:1. Admiralty Chart 2198 ‘North Channel Southern Part’ scale 1:75000. Admiralty Leisure Folio SC5612 'Northern Ireland, Carlingford Lough to Lough Foyle' SC5612.10 and plan. Also Imray chart C62 – ‘Irish Sea’ plus Discovery Ordinance Survey map 15 (Belfast - scale of 1:50 000) covers this area.
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.