- +Today's Tides for Tean Sound
- • Local HW -4 to HW -2: The local first flood flows from the south through southwest. Water funnels into St Mary’s Sound and leaves via all other exits. At the end of this period, tidal flow is starting to enter between Tresco and St Martin’s.
- • Local HW -2 to HW +2: The local late flood flow is from southwest, west, northwest, and then west. Water enters St Mary’s Sound, and between Bryher and Tresco, and Tresco and St Martin’s, exits between St Mary’s and St Agnes, and St Mary’s and St Martin’s. After HW there is little flow into St Mary’s Sound, and flow reverses in the Bar Point area carrying water southwards.
- • HW +2 to HW +4 The local early ebb flows from north to northeast. Water enters between Bryher and Tresco, and Tresco and St Martin’s, and exits by all other routes.
- • HW +4 to HW -4 The local late ebb is from the northeast, east, and then southeast. Water enters between St Mary’s and St Martin’s, and exits by all other routes.
- +Weather for Tean Sound
- +Advanced Haven Search
- +Contacts and Emergency for Tean Sound
- +Local Navigation Resources
|Low Water||High Water|
|01:00 (1.3m)||01:00 (5.5m)|
|13:25 (1.2m)||13:25 (5.1m)|
|Time to low||16:16|
|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. Sorry, future tides are not currently available for Tean Sound. Please check Admiralty EasyTide.
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.
Sorry, future tides are not currently available for Tean Sound. Please use Admiralty EasyTide to predict tide times and heights for the upcoming 7 days. Alternatively use our Christchurch to predict the English Channel's tidal streams, or our Cowes entry for those of The Solent, for up to 18 months in the future.
Do you need more information on the tidal graphics?
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 ST. MARY'S tides — High waters: 07:29, 19:57, Low waters: 01:30, 14:02
Today's Dover tides — High waters: 01:22, 13:50, Low waters: 08:51, 21:14
We are now approaching the next tidal event that will be Springs.
MHWS 5.7m MHWN 4.3m MLWN 2.0m MLWS 0.7m
Highest Astronomical Tide (HAT) 6.4m, Mean Sea Level (MSL) 2.91m
High Water (HW) St Mary’s is HW Dover -0630, Devonport -0055, Duration 0600
Tides are considerably affected by wind conditions and barometric pressure.
The tide runs nine hours, from low water to half-ebb by the shore, into Old Grimsby Harbour, St Helen's Pool and Tean Sound. It sets outward from the same for three hours only, that is from half ebb to low water.
The tide in the open sea is a progressive wave, with slack water four hours before and two hours after HW. Tidal currents rarely exceed 1 knot within the island group, but flows of 2 knots or greater occur around the outer edges of the archipelago, with strong tidal races off major headlands. At certain places around the islands, wind against the tide conditions can become quite rough. This is worth considering when making passage plans.
The northeast-going stream, along the southern coast of St Mary's, turns northward into Crow Sound after -0145 Devonport (+0500 Dover), and forms a race that extends across the entrance to the sound, and as much as 2 miles eastward from Tolls Island; it may be dangerous during gales.
At Watermill cove, the northwest-going stream, spring rate 0.9 knots, begins +0430 Devonport (-0110 Dover) and runs for three hours only. The east-southeast-going stream, spring rate 0.9 knots, begins -0455 Devonport (+0150 Dover) and runs till -0100 Devonport (+0545 Dover). The stream is then slack for a short period, after which it again runs east by southeastward, spring rate 0.7 knots till +0430 Devonport (-0110 Dover).
Tidal currents flow in a rotary fashion through the islands with the following behaviours according to the local tidal cycle:
Headline: Sunshine and showers today. Fog developing in the east overnight.
Today: A brighter start than yesterday, with sunshine and showers for today, locally heavy. The showers most frequent in the west and around coasts, though an increased chance for inland eastern areas later. Breezy around showers. Maximum Temperature 13C.
Tonight: Showers ease this evening with clear spells following, leading to a colder night than last night. Alongside light winds, this brings a risk of fog to the east by dawn. Minimum Temperature 3C.
Tuesday: A murky start expected in the east where it may remain gloomy throughout the day. However there's a chance of sunshine if the fog lifts. Dry with sunshine further west. Maximum Temperature 12C.
Outlook for Wednesday to Friday: Largely dry though often cloudy throughout. Under clear skies overnight fog and frosts are possible, with fog potentially slow to clear. Feeling increasingly cold with light winds.
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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Karma St Martin's, Resort Direct Dial +44 1720 422317, email@example.com, www.karmagroup.com.
Address: Karma St Martin's
Lower Town, St Martin's,
Isles of Scilly,
Tresco Harbourmaster (for New & Old Grimsby), +44 1720 423653, +44 7778 601237,
St Mary’s Harbour Master
The Harbour Office,
The Quay, St Mary’s,
Isles of Scilly,
Office hours: April-October 0800-1700 daily; November-March 0800-1700 weekdays
+44 1720 422768, out of hours +44 7789 273626, firstname.lastname@example.org,
www.stmarys-harbour.co.uk/, listening on 14/16 [St Mary’s Harbour], working 14.
Health Centre P: +44 1720 422628
Hospital P: +44 1720 422392
Dentist P: +44 1720 422694
ibleys fuel P: +44 1720 422431
Chandlery P: +44 1720 422710
Scilly Carrs Taxi M: +44 7825 477695
Tourist Info P: +44 1720 422536
Admiralty Chart 2655 'English Channel Western Entrance' 1148 'Isles of Scilly to Lands End' 34 'Isles of Scilly', 34 'Isles Of Scilly', 883 'Isles of Scilly and the Principal Off-Islands' Leisure Chart Folio - SC5603 'Falmouth to Hartland Point including the Isles of Scilly' (8 to 13) provides various parts of the Isles of Scilly including small scale Falmouth to Scillies.
Imray C10 - 'Western English Channel', C7 - 'Falmouth to Isles of Scilly and Trevose Head', Y49 'Isles of Scilly' (Small Format).
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.