Dyffryn Beach in Llanendwyn, Gwynedd, Wales, boasts a picturesque shoreline with sand and shingle shores, surrounded by the breathtaking beauty of the Welsh coast. The beach's water quality has been consistently rated as Excellent by Natural Resources Wales, making it an ideal destination for families and water sports enthusiasts. During the summer months, the water temperature at Dyffryn Beach typically ranges from 15°C to 18°C, perfect for swimming and water activities.
Hand-picked holiday cottages & coastal retreats near Dyffryn (Llanendwyn) (Gwynedd) & surrounds
Rural Retreats
From £3,046
Wern Manor is a magnificent Grade II listed manor house located between Porthmadog and Criccieth, with The Butler's House attached to the manor, situated in the old stable court...
Rural Retreats
From £3,696
Wern Manor is a magnificent Grade II listed manor house located between Porthmadog and Criccieth, with two beautiful cottages attached to the manor, situated in the old stable c...
Rural Retreats
From £2,546
Wern Manor is a magnificent Grade II listed manor house situated between Porthmadog and Criccieth. Whether you enjoy exploring the 15 acre grounds or indulging in the games room...
Rural Retreats
From £412
This renovated 1950s fairground travelling-van overlooks the Mawddach Estuary near Dolgellau in the southern reaches of the Snowdonia National Park. Situated at the head of the ...
Rural Retreats
From £430
This renovated 1950s fairground travelling-van overlooks the Mawddach Estuary near Dolgellau in the southern reaches of the Snowdonia National Park. Situated at the head of the ...
Rural Retreats
From £667
Ty Newydd is a period farmhouse on the Bodnant Estate, occupying a prominent position with breathtaking views over the Conwy estuary and towards the Carneddau Mountains of Snowd...
Rural Retreats
From £403
This secluded cottage is part of a small working farm high above Bodnant Gardens and two miles from the village of Eglwysbach. It enjoys stunning views of Snowdonia National Par...
Rural Retreats
From £585
Bryn Derw is a delightful and secluded cottage. Nestling in woodland and overlooking a field, it is completely tranquil. The property is located in the heart of the beautiful Bo...
Harmonic astronomical predictions, tidal coefficients & flow rate
| Day | High & Low Tides (Local Time) | Tidal Range | Coeff / Phase |
|---|---|---|---|
| Wed 11 Nov | ▼ Low 15:59 (1.18m)▲ High 21:15 (4.69m) | 3.51m | Spring (89) |
| Today | ▼ Low 04:10 (1.36m)▲ High 09:33 (4.80m)▼ Low 16:29 (1.32m)▲ High 21:50 (4.47m) | 3.48m | Spring (88) |
| Fri 13 Nov | ▼ Low 04:35 (1.53m)▲ High 10:09 (4.60m)▼ Low 16:59 (1.49m)▲ High 22:26 (4.23m) | 3.11m | Coeff 80 |
| Sat 14 Nov | ▼ Low 05:03 (1.72m)▲ High 10:45 (4.38m)▼ Low 17:34 (1.68m)▲ High 23:04 (3.98m) | 2.70m | Coeff 70 |
| Sun 15 Nov | ▼ Low 05:36 (1.93m)▲ High 11:24 (4.16m)▼ Low 18:16 (1.86m)▲ High 23:47 (3.76m) | 2.30m | Coeff 61 |
| Mon 16 Nov | ▼ Low 06:18 (2.13m)▲ High 12:10 (3.96m)▼ Low 19:09 (2.00m) | 1.96m | Coeff 54 |
| Tue 17 Nov | ▲ High 00:41 (3.57m)▼ Low 07:20 (2.30m)▲ High 13:11 (3.82m)▼ Low 20:24 (2.06m) | 1.76m | Neap (49) |
The shoreline consists primarily of sand, shingle. Sediment type dictates underfoot comfort, wave energy absorption, and the water's clarity when currents stir up the seabed.
Water quality is classified as excellent, meeting the highest cleanliness standards. Bacterial counts (E. coli & Intestinal Enterococci) are consistently low, posing negligible health risks.
Bacterial levels are highly susceptible to storm runoff. Heavy rainfall in the local catchment is likely to trigger storm overflows and agricultural runoff, rendering the water temporarily unsafe.
Tested weekly by the Environment Agency England for bacteria levels (E. coli & Intestinal Enterococci) between May and September.
Monitored as a coastal beach. Coastal beaches are subject to tidal flows and marine dilution, whereas inland lakes/rivers suffer from low water circulation, meaning bacteria can linger longer.
Unknown is the regional utility responsible for waste water treatment, sewage infrastructure, and storm overflow management in this catchment area.
Officially designated as a protected bathing water site in 1995. This designation mandates regular public health monitoring.
Governed under local district sanitation and environmental safety regulations in the Gwynedd area.
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