St Mary's Bay (Kent)


St Mary's Bay (Kent)
© Geograph

Water Quality

Annual classification

2017 Good

Today's forecast

Pollution forecasts will resume on 1st May

Data provided by the Environment Agency

This straight beach, near to Romney Marsh, is a mix of sand and shingle. The beach has a wide concrete footway and a low sea wall. At low tide, the sand stretches out about 1/2 mile and the Romney to Dymchurch steam railway runs past the beach.


Water sports, bathing and kite flying are popular here. For a bit of history - the Sound Mirrors are about 4 miles south along the beach, built by Percy Rothwell between 1927-30 as part of Britain’s defence strategy. Romney Marsh Visitor Centre is nearby too.

Wildlife and Walks

You can walk along his huge beach for miles and miles. The RSPBs Dungeness National Nature Reserve is to the the south and inland, to the north, is Ham Street Woods National Nature Reserve, an ancient woodland where you can hear the sound of nightingales or be lucky and spot hawfinches.

What's tested here?

Water samples are taken at this designated bathing water by the Environment Agency, during the bathing season, 15th May to 30th September.
Find out more about designated bathing waters.

High levels of bacteria in the water can indicate pollution from sewage treatment works or polluted rain water draining from the land.
Where does pollution comes from and how can you help?

Water quality can be reduced for up to 72 hours after heavy rain. Look out for temporary signs at the beach and on our website.

Annual classification

2017 Good

What does this mean?

At the end of every bathing season the water quality is classified as either:

Excellent — the highest classification meaning the water is cleanest

Good — generally good water quality

Sufficient — meets minimum standards

Poor — You are advised not to swim. The beach will stay open and an action plan should be in place to improve the water quality.

Today's forecast

Pollution forecasts will resume on 1st May

Data provided by the Environment Agency
More information about potential pollution sources and improvement plans.


This Weather Widget is provided by the Met Office

Tide times

Potential hazards at this beach

Tidal cut-off Tidal cut-off
Deep shelving beach Deep shelving beach
Strong winds Strong winds

Lifeguarded locations - top five safety tips

Non-lifeguarded locations For those who can’t make it to a lifeguarded beach

For more information visit

Facilities at St Mary's Bay (Kent)

Food Food Toilets Toilets



There is a large car park off Dymchurch Road, which is just behind the beach.

Dog restrictions


Seasonal restrictions apply, please check beach signs for more information.

Beach cleaning

No current information