Porth Trecastell Beach (aka Cable Bay)

Porth Trecastell beach is a sandy beach tucked away in a cove below the burial chamber of Barclodiad y Gawres on the headland above.

The beach is also known as Cable Bay as this is the location where telegraph cables linking Britain with Ireland and America reach land.

The beach is popular for fishing, surfing, swimming, canoeing and windsurfing.

Parking but no other facilities although if you are lucky you may get an ice cream van.

Dog Friendly Beach?

Porth Trecastell Beach is dog friendly and allows dogs all year.
Porth Trecastell Beach is dog friendly and allows dogs all year.

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 Porth Trecastell Beach


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Porth Trecastell Beach Photos


7 Day Weather Forecast

Expect a temp in the range 9.3℃ to 9.6℃ with wind speed 11.3 m/sec (WSW)
Thursday, Feb 02cloudy
Expect a temp in the range 9.5℃ to 9.8℃ with wind speed 10 m/sec (WSW)
Friday, Feb 03cloudy
Expect a temp in the range 9.6℃ to 9.9℃ with wind speed 10.9 m/sec (SW)
Saturday, Feb 04partlycloudy_night
Expect a temp in the range 8.9℃ to 9.1℃ with wind speed 9.7 m/sec (SW)
Sunday, Feb 05clearsky_night
Expect a temp in the range 4.4℃ to 6.5℃ with wind speed 5.8 m/sec (N)
Monday, Feb 06clearsky_night
Expect a temp in the range 4.7℃ to 5.4℃ with wind speed 6.4 m/sec (S)
Tuesday, Feb 07partlycloudy_night
Expect a temp in the range 8.1℃ to 9℃ with wind speed 6.2 m/sec (SW)

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

Porth Trecastell Beach Tide Times

Tide times are available at around 600 locations and the closest location to Porth Trecastell Beach is at Porth Trecastell 0.74 km (0.46 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.

Wed 01 Feb
   Low Tide at 00:55 (Height 2.10m)
   High Tide at 07:07 (Height 3.95m)
   Low Tide at 13:35 (Height 2.02m)
   High Tide at 19:32 (Height 3.97m)
Thu 02 Feb
   Low Tide at 02:00 (Height 1.98m)
   High Tide at 07:59 (Height 4.17m)
   Low Tide at 14:35 (Height 1.79m)
   High Tide at 20:22 (Height 4.13m)
Fri 03 Feb
   Low Tide at 02:49 (Height 1.80m)
   High Tide at 08:40 (Height 4.39m)
   Low Tide at 15:20 (Height 1.55m)
   High Tide at 21:01 (Height 4.29m)
Sat 04 Feb
   Low Tide at 03:29 (Height 1.61m)
   High Tide at 09:14 (Height 4.59m)
   Low Tide at 15:58 (Height 1.34m)
   High Tide at 21:33 (Height 4.43m)
Sun 05 Feb
   Low Tide at 04:03 (Height 1.43m)
   High Tide at 09:44 (Height 4.74m)
   Low Tide at 16:31 (Height 1.18m)
   High Tide at 22:03 (Height 4.53m)
Mon 06 Feb
   Low Tide at 04:34 (Height 1.28m)
   High Tide at 10:12 (Height 4.84m)
   Low Tide at 17:02 (Height 1.06m)
   High Tide at 22:31 (Height 4.60m)
Tue 07 Feb
   Low Tide at 05:04 (Height 1.17m)
   High Tide at 10:41 (Height 4.91m)
   Low Tide at 17:31 (Height 1.00m)
   High Tide at 22:59 (Height 4.63m)

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

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