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Swansea Bay
Swansea · estuary bathing water
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Swansea Bay are not shown.
Generally good samples over the last four seasons. Heavy rain can lower water quality here.
- Latest E. coli
- 55
- per 100 ml, 17 Sep 2026
- Latest enterococci
- 36
- per 100 ml
- Overflows within 3 km
- -
- Spills nearby, 30 days
- -
- Excellent or Good
- Sufficient
- Poor
- Overflow discharging
- Overflow
- Offline
About this beach
<p>The Bay is wide and sweeping, measuring some 9 kilometres in length, from Mumbles Head in the west, to the River Tawe in the east. The beach faces south east towards the Bristol Channel and is backed by the urban area of Swansea. The beach slopes gently and comprises of sand, pebble and mud flats. At low tide the waters are shallow and a long distance from the shore front. The water quality sample point is located at the east of the Bay, opposite the Guildhall.</p> <p>For pollution risk forecasts at Swansea Bay, go to <a href="https://www.swansea.gov.uk/bathingwater">www.swansea.gov.uk/bathingwater</a> or <a href="https://result.swanseabayprediction.co.uk/">Swansea Bay Water Quality Latest</a></p>
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.