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Marloes Sands
Pembrokeshire
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Marloes Sands are not shown.
The cleanest samples over the last four seasons. Heavy rain can lower water quality here.
- Latest E. coli
- <10
- per 100 ml, 10 Sep 2026
- Latest enterococci
- 18
- per 100 ml
- Overflows within 3 km
- -
- Spills nearby, 30 days
- -
- Excellent or Good
- Sufficient
- Poor
- Overflow discharging
- Overflow
- Offline
About this beach
Measuring approximately 2 kilometres in length, this isolated beach is sandy, with a pebble bank above the high tide mark, backed by steep limestone cliffs. Marloes Sands faces south east into the Bristol Channel, towards Stockholm island. The surrounding land is predominantly agricultural, with the small town of Marloes located 1.3 kilometres north west of the bay. The coastal waters and coastal belt form part of the Pembrokeshire Marine Special Area of Conservation and is also designated as Special Site of Scientific Interest, confirming the high conservation status of the area. The bathing water also lies within Pembrokeshire Coast National Park. The water quality sample point is located at the centre of the bay.
From the Natural Resources Wales profile.
Storm overflows within 3 km
Nearest first, straight-line distance.We do not read the water company's overflow data here yet, so overflows within 3 km are not shown.