- +Today's Tides for Portland Marina
- +Portland Marina's Future Tides
- +Weather for Portland Marina
- +Advanced Haven Search
- +Contacts and Emergency for Portland Marina
- • VHF Channel 16 call sign [Solent Coastguard]
- • Alternatively, where a good phone signal exists, dial 999 and ask for the coastguard.
- • If at sea, use the Global Maritime Distress and Safety System (GMDSS) to make a distress or urgency alert.
- +Local Navigation Resources
|Low Water||High Water|
|01:00 (0m)||01:00 (0m)|
|13:25 (0m)||13:25 (0m)|
|Time to low||19:46|
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 Portland Marina'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 Portland Marina's future tides predictor below.
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 Portland tides — High water: , Low water:
Today's Dover tides — High waters: 05:32, 18:20, Low waters: 00:03, 12:50
We are now approaching the next tidal event that will be Springs.
HW Dover approx -0430, Portland is a Standard Port.
MHWS 2.1m MHWN 1.4m MLWN 0.8m MLWS 0.1m
Mean Level 1.0 Double Low Waters occur between Portland and Lulworth Cove. Predictions are for the 1st Low Water with the 2nd Low Water occurring 3 - 4 hours later.
Tides in Portland are very small, by Channel standards, and tidal streams are also weak. Tides flood for 4 hours, ebb for 4 hours and then there are 4 hours of slack around LW, except for a small rise of around 0.2 metres, known as the Guider, that commences about ¾ of an hour after Low Water. The tidal currents in the harbour entrances attain a velocity of 1 knot at spring tides and are irregular. Inside the harbour the tidal currents are uncertain.
Tides in the vicinity of the Bill of Portland are strong and a dangerous Race exists south of the Bill. The peninsula disrupts the flow of water in the Channel and the streams are further disrupted by a ledge of Portland stone that extends further out to sea. Added to this are strong south-going streams either side of the Bill, running for 9 or 10 hrs of the tidal cycle, that meet the main Channel streams. All combine to cause the seas to well up and break with the effects of this conflagration being felt up to 5 miles south of Portland Bill.
The Race can be avoided by staying 3 to 5 miles offshore and allowing for a strong set into the race or onto the Shambles. Those planning on visiting Weymouth from the west can make use of an inshore passage which is much faster and shorter. Timing is vital to catch slack water and the right weather conditions in the inshore passage, but it should not be attempted during Springs or at night. Approaches to Race are cover in the Weymouth Harbour [lpin] entry.
Feel free to use our calendar, below, to predict 'Future Tidal Streams' as normal. These are displayed in local time and need no adjustment.
For planning purposes only, not for navigation. Please see our terms and conditions.
Headline: Damp and drizzly on Thursday morning, brighter skies spreading south.
This Evening and Tonight: Staying generally dry overnight with clear spells in places, particularly through this evening. Clearer intervals may continue overnight in southern coastal counties and locally becoming cold here. Elsewhere, thickening cloud will arrive later with some drizzle in places by dawn. Minimum Temperature 1C.
Thursday: Cloudy with drizzly rain for some, especially across Devon and Cornwall. Becoming sunnier in Gloucestershire by lunchtime, and brightening up in most other counties during the afternoon. Breezier than recently. Maximum Temperature 12C.
Outlook for Friday to Sunday: Frost and fog at first on Friday, then clouding over. Cloudy with a chance of some rain and drizzle over the weekend. Becoming increasingly windy by Sunday evening. Generally mild.
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.
Get today's Met Office Video Forecast
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Contacting Coastguard and Emergency Services
Coastguard should only be used for distress and urgency calls as follows:
The National Maritime Operations Centre (NMOC) based at Fareham handles all operations in the area from Sussex, Hampshire, Isle of Wight, Dorset and Devon. They also assist other authorities such as the Police, Fire and Ambulance with their specialist expertise. The centre is manned 24x7 and has helicopters, based at rescue bases at Portland or Lee-On-Solent, at their disposal. Ch.67 can be used for routine communications and the National Maritime Operations Centre can be contacted directly on +44 23 8032 9486 for administrative enquiries only.
Phone 999 when it is a Police emergency, such as when a crime is in progress, someone suspected of a crime is nearby, when there is a danger to life or when violence is being used or threatened. Phone 101, the police non-emergency number, when it's less urgent than a 999 call.
Useful Local Contacts
Hamm Beach Road,
Dorset, DT5 1DX
P: +44 1305 866190 | VHF Ch. 80 [Portland Marina] | E: firstname.lastname@example.org
Port & Customs
Portland Port P: +44 1305 824044
Port Health Authority P: +44 1305 838432
HM Customs Advice Line 0845 0109000
HM Customs Yacht Arrivals & Departures 0845 7231110
Doctors +44 1305 774466
Dentist NHS 111
Dorset Police P: +44 1305 222222
Weymouth Hospital P: +44 1305 760022
First P: +44 870 0106022
National Rail Enquiries P: +44 8457 484950
South West Coaches P: +44 1305 823039
Traveline P: +44 871 2002233
Admiralty Leisure Folio SC5601 ‘East Devon & Dorset Coast, Exmouth to Christchurch’, 2172 ‘Harbours and Anchorages on the South Coast of England’ 2610 ‘Bill Of Portland To Anvil Pt’, 2255 ‘Approach Portland & Weymouth’, 2268 ‘Portland Harbour’. Imray 2000 Series Chart Pack 2300 ‘Dorset and Devon Coast’. Imray C10, C12, C5, C4, 2300 NV Chart Atlas Pack UK2 ‘Start Point to the Needles’.
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.