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.

Dog Friendly Beach?

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

Why not check other beaches nearby as we have 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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Place Category: Beaches

7 Day Weather Forecast

Expect a temp in the range 5.8℃ to 7.5℃ with wind speed 7.1 m/sec (WNW)
Friday, Feb 10cloudy
Expect a temp in the range 6.8℃ to 7.3℃ with wind speed 7.9 m/sec (WSW)
Saturday, Feb 11cloudy
Expect a temp in the range 8.4℃ to 8.8℃ with wind speed 7.4 m/sec (W)
Sunday, Feb 12partlycloudy_night
Expect a temp in the range 7.4℃ to 8.1℃ with wind speed 4.7 m/sec (SW)
Monday, Feb 13clearsky_night
Expect a temp in the range 3.5℃ to 5.3℃ with wind speed 3.9 m/sec (S)
Tuesday, Feb 14cloudy
Expect a temp in the range 4.2℃ to 4.6℃ with wind speed 3.1 m/sec (SE)
Wednesday, Feb 15fair_night
Expect a temp in the range 3.1℃ to 4.5℃ with wind speed 2.6 m/sec (SSE)

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.

Thu 09 Feb
   High Tide at 00:35 (Height 6.12m)
   Low Tide at 06:51 (Height 1.30m)
   High Tide at 12:47 (Height 6.45m)
   Low Tide at 19:19 (Height 1.22m)
Fri 10 Feb
   High Tide at 01:07 (Height 6.04m)
   Low Tide at 07:23 (Height 1.39m)
   High Tide at 13:19 (Height 6.33m)
   Low Tide at 19:51 (Height 1.34m)
Sat 11 Feb
   High Tide at 01:42 (Height 5.91m)
   Low Tide at 07:58 (Height 1.54m)
   High Tide at 13:55 (Height 6.17m)
   Low Tide at 20:26 (Height 1.51m)
Sun 12 Feb
   High Tide at 02:19 (Height 5.74m)
   Low Tide at 08:36 (Height 1.74m)
   High Tide at 14:33 (Height 5.96m)
   Low Tide at 21:08 (Height 1.73m)
Mon 13 Feb
   High Tide at 03:03 (Height 5.53m)
   Low Tide at 09:22 (Height 1.99m)
   High Tide at 15:21 (Height 5.68m)
   Low Tide at 22:00 (Height 2.00m)
Tue 14 Feb
   High Tide at 04:00 (Height 5.30m)
   Low Tide at 10:24 (Height 2.25m)
   High Tide at 16:26 (Height 5.39m)
   Low Tide at 23:10 (Height 2.24m)
Wed 15 Feb
   High Tide at 05:19 (Height 5.15m)
   Low Tide at 11:45 (Height 2.37m)
   High Tide at 17:58 (Height 5.23m)

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

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