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Caswell Bay
Swansea
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Caswell 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, 17 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
The bay is located on the south Gower Coast, west of Langland Bay and Mumbles Head. The beach is gently sloping and sandy, with limestone cliffs on either side, backed by a concrete promenade with several seaside shops. 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.