All beaches / Wales / Beaches
Llanddwyn
Isle of Anglesey
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Llanddwyn 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, 16 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 beach is located at the south west tip of the Isle of Anglesey. Access is gained via a large conifer plantation owned by Natural Resources Wales. Offshore sandbanks fringe the bathing area, which forms a relatively sheltered shallow lagoon. The bay is located within the Newborough Warren and Llanddwyn Island National Nature Reserve. It is also within the Anglesey Coast Salt marsh Special Area of Conservation, the Anglesey Area of Outstanding Natural Beauty and the Newborough Warren - Ynys Llanddwyn Site of Special Scientific Interest. The bathing water sample point is located 420 metres south west of the main beach entrance.
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.