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Langstone Harbour

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Courtesy Flag

Flag, Red Ensign


Harbour Entrance 50:47'.20N 001:01'.51W


Admiralty 2045, 3418, SC5600

Rules & Regulations

Speed Limit 10 Knts


Extremely Strong Tidal Streams in Entrance (with possible submerging of mooring buoys.)
Submerged Barrier between Portsea and the Horse Sands Fort. Dolphins mark the safe passage.

Tidal Data Times & Range

HW +0014 Dover, MHWS 4.8m, MHWN 3.9m, MLWN 1.9m, MLWS 0.8m Tide tables:   (links)

This site is designed for slower, roaming broadband connections, like you would get at sea, so it needs JavaScript enabled to expand the text.

General Description

Langstone Harbour is a large tidal Bay lying between Portsmouth to the West and Hayling Island to the East. ... read more


Langstone is safe to enter in moderate conditions but for first timers it is probably best to avoid going in on an ebb tide, especially springs.

Onshore winds combined with Spring ebb tides can kick up rough, and the entrance shouldn't be attempted at all in southerly or south-easterly gales.

Approach is made between two shingle banks, Western Winner to the West and the far more extensive East Winner to the East. Pilotage details for the approach to Langstone are now given:

Depths in the approach range from 1.2 m at LAT upwards, so consultations with the tide tables will be required.
... read more

Berthing, Mooring & Anchoring

Once  through the narrow entrance there are a couple of mooring opportunities for the visiting yachtsman or motorboater.  Southsea Marina is just within on your port side. ... read more

Your Ratings & Comments

Anchoring charges update
Written by Bryant | 8th Sep 2023
You might want to update the information for Langstone Harbour. I know that you give a date for when you last updated the page but.... the anchoring fees are nearly treble your quoted flat rates. They are now charging by length and for me it is £22.

Paul Reading
Update March 2022
Written by Don Thomson 3 | 24th Mar 2022
I reviewed these notes in March 2022. Prices have been adjusted. I think the first PHM for the channel to the marina is quite close to the beach which is possibly why it can be missed - but I would still give it the benefit of the doubt!!
By Don (Ed) December 2021
Written by Don Thomson 3 | 6th Dec 2021
I've noted Gee Bee's comment below re the entrance to the Southsea Marina channel. I've offered advice but that is based on what I can see from UKHO and Google. Just be aware that the spit there extends quite a way to the North.
Langstone - confused entrance to channel that leads to marina
Written by GeeBee | 27th Nov 2020
The entrance to the channel that takes you up to Southsea Marina is very badly marked: there is no clear port hand day mark at its entrance and, worse of all, Langstone HM has allowed boats to be moored such that they may completely encroach the very narrow channel, making it a difficult and potentially dangerous passage under the wrong conditions. When in the narrow channel it is very clearly marked with substantial port and starboard posts, all of which were renewed in Oct/Nov 2020. Contrary to the notes in the guide, there is no Marina Lounge to speak of: the Bombay Bay remains as a high quality Indian Cuisine site. Lastly, on calm, sunny days, Langstone Harbour entrance is one of the south coast's major jetski launching sites, so expect lots of speeding PWCs and the associated noise on such days.
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Written by Don Thomson 3 | 11th Mar 2020
These notes were reviewed in March 2020. The prices have gone up across the board. We have uploaded a new UKHO chart
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Written by Don Thomson | 20th Mar 2018
The harbour dues have gone down a few pence whilst the marina fess have remained static for this year. I have uploaded a new chart.
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Further update Spring 2016
Written by dononshytalk | 10th Mar 2016
The availability of visitors moorings has been cleared up; there are three moorings laid for the summer months and the positions are given in the text
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Update Spring 2016
Written by dononshytalk | 9th Mar 2016
These notes were reviewed by Don in March 2016. The availability of visitors mooring outwith the Marina is unclear so a call to the harbour on VHF will be needed to clarify on the intended day.
ECA moorings
Written by Bailingben | 2nd Feb 2016
The ECA visitor moorings are deep water and on your port side in the 'RUN' when entering , the only issue with these moorings is that they are vulnerable when a southerly or northerly wind picks up and you end up with a wind against tide situation.

The other issue is the fishing boats do a very interesting 10 knots and make a big wash with isn't very fun to be hit by side on. The first mooring in the row which is the one closest to the slipway is a short stay only mooring, all the others are 24 hour moorings.

hope this helps.
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Update March 2014
Written by dononshytalk | 31st Mar 2014
This site was reviewed March 2014. Harbour dues and Marina charges have increased for the 2014 season and these have been edited. We also note that,although the harbour no longer maintains any visitors moorings, they will rent out any spare moorings if they are available. We have also noted that the water-skying area based on the Langstone Channel is delineated by yellow buoys
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