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|Low Water||High Water|
|04:41 (0.7m)||11:15 (4.9m)|
|17:10 (1m)||23:26 (4.9m)|
|Time to high||6:15|
|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 Limerick Docks'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 Limerick Docks'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 Galway tides — High waters: 09:39, 21:46, Low waters: 02:51, 15:04
Today's Dover tides — High waters: 02:33, 14:57, Low waters: 10:02, 22:23
We are now on Neaps.
Also Dover –04:35; MHWS 5.9m MHWN 0.4m
The tidal range is about 5.5 metres at springs and 3.3 metres at neaps.
Shannon Entrance tides and mid channel spring rates
Flood (in going) stream starts at -0520 HW Galway (+0100 Dover) at 2.5kn
Ebb (outgoing) stream starts at HW Galway +0045 (-0515 Dover) at 4kn
Once inside stream rates vary at different points of the estuary. Off Tarbert Island, the flood begins about 5 hours before HW at Galway and the ebb about 1 hour after HW. A good simplification for a passage as far as Foynes is to take it that the flood starts approximately 5 hours before, and the ebb 1 hour after HW Galway.
Our ‘standard port’ tidal estimate for high water Limerick is 1 hour 20 minutes after HW Galway, and LW about 5 hours before HW Galway. The actual time of LW is however uncertain and the rate at which it falls and rises is highly irregular in the upriver section. Here the tide falls regularly for about 6 hours but after this fall no tidal movement occurs for a period of about 2 to 2 hours and 30 minutes. Then 2 hours 45 minutes before HW at Galway the rise commences with a very rapid upsurge in the first hour. After the banks of the river are covered it steadies and remains restrained until HW Limerick. The ebb begins about 1 hour and 45 minutes after HW Galway and sets at a moderate velocity for about 3 hours to 3 hours and 30 minutes. Then it rapidly increases for about the final 2 hours, as the river banks dry, after which time there is little or no current. Tides may also be influenced to a small degree by rainfall. South to west winds usually increases the height whilst north to east winds usually decrease it.
For planning purposes only, not for navigation. Please see our terms and conditions.
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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Valentia Maritime Rescue Sub-Centre (MRSC) VHF Ch 24 & MF 1752 kHz covers this coastal 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:
In an emergency call "Shannon Coastguard" on Ch. 16
Shannon Foynes Port Company, Harbour Office, Foynes, Co. Limerick, Ireland
T: +353 69 73100
T: +353 69 73103
Large scale Admiralty Charts 2254 and 2173 cover the south-western and northern approaches respectively. For River Shannon navigation the large scale Admiralty Chart 1819 ‘Approaches to the River Shannon’ scale of 1:50,000 has details of the Shannon Mouth and the Inner Mouth between Kilcredaun Head and Kilconly Point. Inwards from here the detailed charts 1547 ‘River Shannon - Kilcredaun Point to Ardmore Point’ scale of 1:20,000 including Kilrush Creek 1:10,000 is the key chart. For the rest of the Shannon : 1540 ‘River Shannon - Shannon Airport to Limerick’ scale of 1:12,500, 1548 ‘River Shannon - Ardmore Point to Rinealon Point’ scale of 1:20,000, 1549 ‘River Shannon - Rinealon Point to Shannon Airport including Foynes Harbour’ scale of 1:20,000 - Foynes Harbour 1:7,500.
Imray C55 ‘Dingle Bay to Galway Bay’ scale of 1:170,000, covers the west coast from Dingle Bay to Galway Bay and up the Shannon Estuary as far as Limerick City. It includes detail chartlets of all main harbours and anchorages. Ordinance Survey of Ireland, Discovery Series Map ref No. 63 / 64. Scale 1:50,000. Information, maps etc. on Shannon navigation is available from the Inland Waterways Association of Ireland.
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.