Cemlyn Bay Beach

Cemlyn Bay is a bay on the northwest coast of Anglesey to the west of Wylfa nuclear power station. The beach is pebble and has sand as the tide goes out, but most people don’t visit for the beach but what lies behind it. Separated from the beach is a brackish lagoon, which is fed by a number of small streams. A weir at the western (Bryn Aber) end of the beach regulates the lagoon’s water level.

The site is designated a Site of Special Scientific Interest and is currently part of the Anglesey Heritage Coast and the Isle of Anglesey Area of Outstanding Natural Beauty. The Cemlyn estate is owned by the National Trust; the lagoon and its immediate surrounds comprise Cemlyn Nature Reserve (25.2 ha in extent, set up in 1971 and leased by the North Wales Wildlife Trust).

Car parks at either end of the Cemlyn Bay and the Anglesey Coastal Path passes through the bay.

We have no current information on dog restrictions for Cemlyn Bay Beach.

Why not check other beaches nearby as we have one beach at Llanfairynghornwy, 31 beaches in Isle of Anglesey, or check our list of Isle of Anglesey Dog Friendly Beaches.

Visit Cemlyn Bay Beach


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Cemlyn Bay Beach Photos


7 Day Weather Forecast

Expect a temp in the range 11.8℃ to 12.4℃ with wind speed 8.8 m/sec (NW)
Wednesday, Sep 28
Expect a temp in the range 11℃ to 11.5℃ with wind speed 8.4 m/sec (NNW)
Thursday, Sep 29
Expect a temp in the range 12.8℃ to 13.3℃ with wind speed 8.3 m/sec (NNW)
Friday, Sep 30
Expect a temp in the range 10.7℃ to 12.3℃ with wind speed 2.2 m/sec (SE)
Saturday, Oct 01
Expect a temp in the range 12.8℃ to 13.7℃ with wind speed 7.7 m/sec (W)
Sunday, Oct 02
Expect a temp in the range 12.2℃ to 12.7℃ with wind speed 9.7 m/sec (W)
Monday, Oct 03
Expect a temp in the range 12.3℃ to 13.1℃ with wind speed 2.6 m/sec (W)

Llanfairynghornwy weather forecast from Yr, delivered by the Norwegian Meteorological Institute and NRK

Cemlyn Bay Beach Tide Times

Tide times are available at around 600 locations and the closest location to Cemlyn Bay Beach is at Cemaes Bay 3.96 km (2.46 miles) away. Tides are displayed beneath for up to 7 days and we list both high and low water times along with the height. These times are not adjusted for BST.

Tue 27 Sep
   Low Tide at 05:30 (Height 0.81m)
   High Tide at 11:21 (Height 6.56m)
   Low Tide at 17:37 (Height 0.95m)
   High Tide at 23:33 (Height 6.84m)
Wed 28 Sep
   Low Tide at 06:02 (Height 0.81m)
   High Tide at 11:54 (Height 6.59m)
   Low Tide at 18:12 (Height 0.95m)
Thu 29 Sep
   High Tide at 00:08 (Height 6.79m)
   Low Tide at 06:36 (Height 0.91m)
   High Tide at 12:29 (Height 6.52m)
   Low Tide at 18:49 (Height 1.08m)
Fri 30 Sep
   High Tide at 00:44 (Height 6.62m)
   Low Tide at 07:13 (Height 1.13m)
   High Tide at 13:07 (Height 6.35m)
   Low Tide at 19:30 (Height 1.31m)
Sat 01 Oct
   High Tide at 01:26 (Height 6.33m)
   Low Tide at 07:56 (Height 1.48m)
   High Tide at 13:52 (Height 6.08m)
   Low Tide at 20:17 (Height 1.64m)
Sun 02 Oct
   High Tide at 02:16 (Height 5.93m)
   Low Tide at 08:47 (Height 1.91m)
   High Tide at 14:47 (Height 5.74m)
   Low Tide at 21:19 (Height 2.02m)
Mon 03 Oct
   High Tide at 03:24 (Height 5.47m)
   Low Tide at 09:57 (Height 2.35m)
   High Tide at 16:03 (Height 5.43m)
   Low Tide at 22:44 (Height 2.27m)

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

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Some more seaside locations in Isle Of Anglesey