All swimming spots › Arun, England
Can I swim at Middleton-on-sea?
Arun, England · Coastal
Checking…
Before you get in
A red flag means do not go in, whatever this page says.
If you get into trouble, float on your back until the cold shock passes. Full advice below.
In an emergency call 999 and ask for the Coastguard, or 112 in the Republic of Ireland.
Water quality today
The last fortnight
What this verdict covers
Independent site, not an official one. This verdict is about water quality. It does not tell you whether the water is safe to get into today.
How it has been rated
The annual classification for 2021 to 2025. Each one is calculated from samples taken over up to four bathing seasons, so these overlap and none of them describes today.
Every sample, 2023 to 2026
45 samples, 2023 to 2026. The highest E. coli count in them was 210 per 100ml, on 1 August 2023; the standard for Excellent is 250 or below and for Good 500 or below.
One bar for each sample, oldest on the left. The taller the bar, the more E. coli that bottle held.
The scale is the same on every beach on this site, which is why a clean beach looks flat — the bars are measured against the standard rather than against that beach’s own worst day. Hover or tap a bar for that day’s figures. A single count over a line is not a failed beach. The classification is worked out as the 90th and 95th percentile of four years of samples, so one bad morning does not decide it — and one good morning does not either.
What these bacteria mean for you
Neither one is what makes people ill by itself. They are markers: they live in the gut, so finding them means sewage or animal waste has reached the water, and whatever else came with it is likely there too.
The usual way to catch something is swallowing the water, and the usual result is a stomach upset. Ear, eye, chest and skin infections are the other common ones. Putting your head under and swimming with an open cut both raise the odds.
The riskiest time is the day or two after heavy rain, when storm overflows discharge and rain washes off farmland — including at beaches rated Excellent for the rest of the season. That is the whole reason this page shows you rainfall and discharges alongside the grade.
Middleton-on-sea was rated Excellent for 2025, the highest of the four grades in the Bathing Water Regulations. That grade comes from bacterial samples taken over several seasons, so it describes the beach's record rather than the water on any given day.
The Environment Agency issues a pollution risk forecast each morning during the bathing season for nearly every bathing water in England, and the water company publishes the status of its storm overflows every few minutes.
The rest of its file
What the regulator holds for this place. None of it describes the water today.
- Water
- Coastal
- Area
- Arun, England
- Monitored outfalls within 5km
- 9 (nearest 1.0km)
Sea, wind, tide and weather
The sea and the weather here today and for the week ahead. Not the water quality verdict above.
Today
Rain, the week behind and ahead
The weather for the week ahead
Where it is, and what discharges near it
Directions to this bathing water
That is the Environment Agency’s sampling point, which is at the water rather than at a car park. Your maps app will take you to the nearest road it can reach.
The nearest mapped car park is about 190m away in a straight line. That is not a walking distance: OpenStreetMap knows where the car park is and nothing about the path, which may be longer, steeper or not there at all.
No toilet, drinking water or cafe is mapped within 500m of here in OpenStreetMap. That is a gap in the map as much as it is a fact about the place.
Getting here without a car
- Nearest bus stop Templesheen Road (opp), Elmer Road, about 160m away
Straight-line distances to where the stop or station is, from the national registers of them. That a stop exists is not a promise that a bus calls at it — timetables are somebody else’s data and this page does not read them, so check the operator before you rely on it.
The record since 2021
In 2025, the 6 monitored overflows the Environment Agency lists against this bathing water spilled 173 times, for about 2,467 hours in total. Over the 2025 bathing season alone, 1 May to 30 September, 21 of those spills happened — 12% of the year.
- 202199 spills · 1,445 hours
- 2022103 spills · 1,691 hours
- 2023220 spills · 3,770 hours
- 2024268 spills · 4,263 hours
- 2025173 spills · 2,467 hours
These are annual totals for the whole year, not readings from today — today’s answer is the verdict at the top of the page. Figures come from the Environment Agency’s Event Duration Monitoring annual returns, which the water companies submit and the EA publishes, and the EA decides which overflows count as belonging to this bathing water.
What the regulator says about this beach
From the Environment Agency’s published bathing water profile for 2026. It describes the place and its catchment, not today’s water.
The beach itself
The bathing water is on the south coast in West Sussex, adjacent to the village of Middleton-on-Sea. The upper beach, protected by wooden breakwaters, is predominantly shingle, interspersed with significant amounts of vegetation. Large expanses of sand are exposed at low tide. There are several large, rocky sea defences situated about 100m off the shore.
What drains into it
The bathing water is situated in a low lying area. The natural drainage (hydrological) catchment surrounding the bathing water is approximately 300 hectares. This includes the catchment of the Elmer Rife that drains just to the east of the bathing water. The area immediately behind the bathing water is urban but most of the wider surrounding area which is predominantly rural (arable and managed grassland).
More from the profile
Where the sewage works discharges
There is a high standard of treatment at the sewage treatment works discharge 6.8 km from the shore of this bathing water which is designed to protect bathing water quality.
What has been done about it
Prior to 2001, treated sewage was discharged from both Bognor long sea outfall (8 km from the bathing water) and Littlehampton Long Sea Outfall (6.8 km from the bathing water). In 2001, flows from Bognor and Littlehampton sewage works were diverted to a new sewage treatment works at Ford for further treatment and then discharged out of Littlehampton Long Sea Outfall. The Bognor outfall was retained solely for storm discharges. As part of Southern Water’s Bathing Water Enhancement Programme (from 2016 to 2019), Southern Water have worked with partners and delivered solutions to improve bathing water quality.
What the samplers see on the sand
Environment Agency samplers make observations of litter present on the beach at every visit, this includes assessments of sewage debris, litter and tar. At Middleton-on-sea for the four year (2022-2025) assessment period where data is available, sewage debris was not noted at this site. Litter was not assessed as being sufficient to be objectionable, but was observed as being present on 27% of visits. Tarry residue was not noted at this site.
Published by the Environment Agency under the Open Government Licence. The full profile carries more, including sections repeated for every beach that are not reproduced here.
Other swimming spots nearby
The closest bathing waters on the regulators’ lists, straight-line distance. Each has its own checks and its own verdict.
Check the official source
The regulator’s own page for this bathing water. If it disagrees with this one, believe theirs.
Middleton-on-sea's official page at the Environment Agency · See it on a map
This page is not official. It reads published data and presents it plainly; if a sign at the beach says otherwise, believe the sign.
If you get into trouble
This is the RNLI’s advice, not ours.
Float. Tilt your head back with your ears in the water. Relax and let your breathing settle. Move your hands and legs gently to stay level. Your legs may sink, and that is fine, everyone floats differently. The first shock of cold water passes in less than a minute, so do not try to swim straight away. Once it has passed, call for help or swim to safety.
Caught in a rip current? Do not swim against it, you will only tire yourself out. If you can stand, wade out of it. If the water is too deep to stand, swim parallel to the beach until you are clear of it, then head for shore. Raise your hand and shout for help.
Nobody publishes a rip current forecast for beaches in Britain or Ireland, so this site cannot show you one. The RNLI has one for its own lifeguards. The public does not. Look at the water before you get in, and look for a channel where the waves are not breaking.
In an emergency call 999 and ask for the Coastguard. In the Republic of Ireland call 112 or 999 and ask for the Coast Guard.
Where there are lifeguards, swim between the red and yellow flags. They put those flags where it is safest that day and move them as the sea changes. A red flag means do not go in, whatever this page says. An orange windsock means the wind is blowing offshore and inflatables should stay out of the water. Most places on this site have no lifeguard at all.
This advice is the RNLI’s. Their Float to Live pages are worth two minutes of anyone’s time.
Use this page elsewhere
One sheet of A4 with a QR code to this page, for a clubhouse, a campsite reception, a surf school or a harbour office. The address is printed underneath in words, so it still works for anybody who would rather not scan a code.
Print a sign for Middleton-on-seaOr put today’s verdict on your own site.
Put this beach on your own site
A small card showing today’s verdict for Middleton-on-sea, updating itself. Paste this where you want it to appear. It loads nothing of yours and sets no cookies, and it costs your visitors about ten kilobytes, most of it the readings themselves.
Click the box to select it all. There is also a feed for this beach, if you would rather be told than have to look.