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Traeth Tywyn Mawr Beach

(Porth Tywyn Mawr Beach)

Isle of Anglesey, Wales


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Traeth Tywyn Mawr Beach, also known as Sandy Beach, is a popular destination for beachgoers and water sports enthusiasts in the UK.

Traeth Tywyn Mawr Beach is a long and sandy beach with sand dunes, stretching half a mile in length. The beach is backed by low dunes and offers a rural feel, with a backdrop of fields and the headland of Trwyn Llwyd to the north.

The beach is suitable for most water sports, including sailing, jet-skiing, kite-surfing, kayaking, and surfing. There are limited facilities at the beach itself, but visitors can find toilets and a shop in nearby Church Bay or Llanfaethlu. However, there are a couple of caravan parks at the southern end of the beach, including Penrhyn and Sandy Beach Leisure Park, which offer amenities such as a well-stocked shop open to non-residents and day visitors.

The beach is close to a village and a campsite, providing accommodation options for visitors. The nearby holiday park overlooking the south corner of the beach makes it a popular family destination.

Traeth Tywyn Mawr Beach is adjacent to the Anglesey Coast Path and the Wales Coast Path.

Sand

Weather and tides for Tuesday 15 September

Tonight
Chance of rain 60%
Min temperature 13°C
feels like 13°C
Wind 16mph
Tomorrow (Wednesday)
Chance of rain 28%
Max temperature 16°C
feels like 16°C
Wind 21mph
Max UV Index

The tide at Traeth Tywyn Mawr Beach is currently rising. High tide will be at approximately 1:53 AM tomorrow, and the next low tide will be at approximately 8:04 AM tomorrow.

Today's air pollution levels are forecast to be Low

Detailed weather and tides »

Other beaches nearby

Location: Llanfwrog

Location type: Rural

OS Grid: SH287851

Coordinates: 53°20'6"N 4°34'21"W

Mapcode: GBR HM2W.J59

What 3 Words: roadblock.weeks.pins

Coordinates and location codes are for an approximate mid-point of the beach, and may not reflect the best access point or the most popular part of the beach.

Country: Wales

Local Authority: Isle of Anglesey

Parish: Llanfaethlu

Nearest postcode: LL65 4YH

(for sat-nav purposes only, a beach does not have a postal address!)

Important! Beach information is compiled from a variety of different sources and is correct to the best of our knowledge at the time of compilation. However, information may be incorrectly supplied by our sources or go out of date after publication. BritishBeaches.uk makes no warranty as to the accuracy of any information on this page.

Visitor information for Traeth Tywyn Mawr Beach, Isle of Anglesey, Wales. Weather, tides, visitor comments, beach facilities, photos, nearest postcode, beach information and nearby accommodation.

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216.73.217.94 Tue, 15 Sep 2026 22:45:18 +0100