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 Robert's Cove'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 Robert's Cove'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 Cobh tides — High waters: 08:30, 20:46, Low waters: 02:30, 14:56
Today's Dover tides — High waters: 01:33, 13:55, Low waters: 08:58, 21:14
We are now
on Neaps.
Dover -0523 MHWS 4.0m MHWN 3.2m MLWN 1.3m MLWS 0.5m
Currents from the Old Head of Kinsale to Cork Harbour Dover +0045 the east going stream (NE) begins (-0550 Cobh) Dover -0500 the west going stream (SW) begins (+0050 Cobh) Rate circa 1.2 kn springs and at Daunt Rock 0.7 kn, springs, 0.4 kn neaps.
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 Cobh offset -01:10.
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.
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
Valentia Maritime Rescue Sub-Centre (MRSC) VHF Ch 24 & MF 1752 kHz covers this costal area. Cork (26), Mizen (04), Bantry Bay (23), Shannon (28) and Galway (04) provide relay stations. Coastguard Radio is always called on a working channel. Emergencies are worked on 16, 67 and working channel. Alternatively, or if ashore, phone 999 or 112 (free) and ask for ‘Marine Rescue’. Gardai (police), Fire and Rescue are also available on this number. Valentia (MRSC) may be called on +353 669 476 109
Other useful contacts in this area: Cork Harbour Radio (port operations) VHF Channel 12, 14, 16, (H24) Port operations telephone: +353 21 4811380 Harbour Master: +353 21 4273125 e-Mail: info@portofcork.ie; Gardai (Irish Police) at Crosshaven +353 21 1483 1222 at Cobh +353 21 490 8530 Gardai (Irish Police) Cork +353 21 4831222 Doctor: +353 21 4831716 Hospital: +353 21 46400
Small Scale planning is available from 2049 ‘Old Head of Kinsale to Tuskar Rock’ and 2424 ‘Kenmare River to Cork Harbour’ scale of 1:150,000. Also ‘Old Head of Kinsale to Power Head’ scale of 1:50,000. The best detail is available from Admiralty Chart 1765 Old Head of Kinsale to Power Head scale 1:50,000 that is a much smaller scale than is ideal. Admiralty Leisure Folio SC5622 Ireland - South Coast, ‘Kinsale to Waterford’ covers this area.
Imray C57 ‘Tuskar Rock to Old Head of Kinsale’ and C56 ‘Cork Harbour to Dingle Bay’ scale of 1:170,000 overlap here. Ordinance Survey of Ireland, Discovery Series Map ref No’s 81 and 87 scale 1:50,000 cover the area around Cork Harbour.
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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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