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Col-Huw Beach (Llantwit Major)
the Vale of Glamorgan
We do not read the water company's overflow data here yet, so storm overflows within 3 km of Col-Huw Beach (Llantwit Major) 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, 3 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 beach lies at the mouth of the Afon Colhuw, to the South West of Llantwit Major, rocky in places there is a shingle bank with sandy areas at low tide. The bay is backed by steep sandstone cliffs facing south westerly towards the Bristol Channel. Colhuw beach lies in the middle of the Glamorgan Heritage Coast, with the Wales Coastal Path extending along the top of the beach. The valley either side of the lower reaches of the river is designated as a Site of Interest for Nature Conservation and the Cwm Colhuw Nature Reserve extends along the southern slope of the Afon Colhuw. Natural Resources Wales’s designated 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.