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Castle Beach, Tenby
Pembrokeshire
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Castle Beach, Tenby 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, 14 Sep 2026
- Latest enterococci
- <10
- per 100 ml
- Overflows within 3 km
- -
- Spills nearby, 30 days
- -
- Excellent or Good
- Sufficient
- Poor
- Overflow discharging
- Overflow
- Offline
About this beach
This small cove is located at the north east end of the South Beach, opposite St Catherine’s Island. This is the smallest of Tenby’s three beaches, being 150 metres wide at low tide. The beach is backed by steep cliffs, with the town of Tenby above. This beach can be heavily populated with holiday-makers on sunny days and is where the boat to Caldey Island launches. The bay is located within the Carmarthen Bay Special Area of Conservation, with the cliffs and St Catherine’s Island being listed as a Site of Special 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 beach.
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.