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Low Water | High Water |
---|---|
01:00 (0.8m) | 01:00 (5.6m) |
13:25 (0.9m) | 13:25 (5.4m) |
Now Falling | |
Time to low | 14:55 |
Total fall | 4.5m |
Remaining fall | |
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 Perpitch. 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
Sorry, future tides are not currently available for Perpitch. 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 details
Today's ST. MARY'S tides — High waters: 05:17, 17:35, Low waters: 11:46, 23:56Today's Dover tides — High waters: 11:57, 01:00, Low waters: 07:04, 19:24
We are now on Springs.
MHWS 5.7m MHWN 4.3m MLWN 2.0m MLWS 0.7m
HW St Mary’s is HW Dover – 0630, Devonport -00.55
ML 3.2; Duration 0600, Maximum rise Springs 6.2 metres. Mean rise Springs 5.7 metres, Neaps 4.3 metres.
Tides are considerably affected by wind conditions and barometric pressure. At certain places around the islands wind against the tide conditions can become quite rough. This is worth considering when making passage plans.

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
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 ST. MARY'S offset -01:00.
Today's overview |
Friday | Saturday | Sunday | Monday |
6 | 4 | 5 | 5 | 4 |
10°C 8°C |
11°C 9°C |
11°C 9°C |
10°C 8°C |
10°C 9°C |
Headline: Largely dry with some sunny spells. Rain arriving later.
Today: A chilly start for some, but a mainly dry, often fairly cloudy day. An isolated light shower is possible. Some brighter breaks developing at times too. Southeasterly winds strengthening in the far west, with rain arriving here by the evening. Maximum Temperature 7C.
Tonight: Mostly dry at first this evening but rain in the far west of Cornwall, slowly moving eastwards overnight. Clearest skies in the far east, where some frost forming. Breezy. Minimum Temperature 0C.
Friday: A damp and murky day for many, with some outbreaks of rain. Some brighter breaks in the east, notably at first. Windy, especially over the hills and around the coasts. Maximum Temperature 7C.
Outlook for Saturday to Monday: Further outbreaks of rain pushing in from the west on Saturday. Staying rather cloudy on Sunday and Monday with the chance of patchy rain. Gradually turning milder, though often breezy.

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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St Mary’s Harbour Master
The Harbour Office,
The Quay, St Mary’s,
Isles of Scilly,
TR21 0HU
Office hours: April-October: 0800-1700 Daily, November-March: 0800-1700 Weekdays
Tresco Harbourmaster (for New & Old Grimsby),
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.