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Church Bay
Isle of Anglesey
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Church Bay 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
- <10
- per 100 ml
- Overflows within 3 km
- -
- Spills nearby, 30 days
- -
- Excellent or Good
- Sufficient
- Poor
- Overflow discharging
- Overflow
- Offline
About this beach
Also known as Porth Swtan, the bay is located on the north coast of Anglesey, facing west overlooking Holyhead. The beach consists of rock, pebble and sand, backed by cliffs, edged by rocks with many rock pools. Church Bay falls within the Anglesey Area of Outstanding Natural Beauty, with the Clegir Mawr Site of Special Scientific Interest located at the north of the bay. It also lies within the Anglesey Heritage Coast designation. 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.