Trearddur Bay (Holy Island) 48 hour detailed Surf Forecast

Lat Long: 53.28° N 4.62° W

Issued: 6 pm 11 Jul 2026 (local time)

Forecast update in hr min

Today's Trearddur Bay (Holy Island) sea temperature is

15.6° C

Trearddur Bay (Holy Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

	Short Range Forecast Mostly dry. Warm (max 24°C on Sun afternoon, min 14°C on Sun night). Winds increasing (light winds from the NNE on Sat afternoon, fresh winds from the ENE by Mon night).
	Sat 11			Sunday 12								Monday 13								Tue 14
	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	N 4	N 4	N 4	NNW 4	ENE 5	NE 5	NE 5	NE 5	NE 4	NE 5	NE 5	NE 5	NE 5	NE 5	SE 4	NE 4	S 19	S 15	S 15	S 15	S 15	S 14	S 18	SW 18
Wave Graph
kJ	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	7	4	4	4	4	4	6	12
Wind (km/h)	NNE	NNE	NNE	ENE	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	NE	NE	NE	ENE	ENE	ENE	ENE	ENE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	cross-off	cross-off	cross-off	cross-off	off	off	off	off	off	cross-off	cross-off	off	off	off	off	off	off	off	off	off	off	off	off
High Tide			8:33PM4.86m				9:01AM5.02m				9:34PM5.14m					10:03AM5.23m				10:28PM5.42m				10:57AM5.41m
Low Tide	2:09PM1.44m				2:44AM1.43m				3:11PM1.28m				3:45AM1.10m					4:08PM1.09m				4:40AM0.77m


	—	—	—	—	5:05	—	—	—	—	—	—	—	5:05	—	—	—	—	—	—	—	5:07	—	—	—
	—	9:43	—	—	—	—	—	—	—	9:42	—	—	—	—	—	—	—	9:40	—	—	—	—	—	9:39
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	23	21	23	23	19	17	18	22	23	24	22	18	15	14	16	19	21	20	19	19	17	15	16	20
Feels °C	22	18	20	19	15	13	13	18	17	18	17	12	8	7	9	12	15	13	12	13	12	10	11	16
Swell 1 Height (m) Direction Period (s)	—	—	NNW 5	NNW 4	NNW 5	NNW 4	NNW 4	—	—	—	—	—	—	—	SE 4	—	S 19	S 15	S 15	S 15	S 15	S 14	S 18	SW 18
kJ	—	—	8	16	7	2	3	—	—	—	—	—	—	—	1	—	7	4	4	4	4	4	6	12
Swell 2 Height (m) Direction Period (s)	—	—	—	—	—	NE 6	—	—	—	—	—	—	—	—	—	—	—	—	—	—	W 15	—	—	—
kJ	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	NE 5	—	—	—	—	—	—	—	—	—	S 15	—	—	—	—	—	—	S 8
kJ	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—	4	—	—	—	—	—	—	1
Wind waves Height (m) Direction Period (s)	N 4	N 4	N 4	ENE 4	ENE 5	NE 5	NE 5	NE 5	NE 4	NE 5	NE 5	NE 5	NE 5	NE 5	NE 4	NE 4	NE 4	NNE 4	NE 4	NE 4	NE 4	NE 4	NE 4	NNE 4
kJ	15	22	22	6	15	19	21	35	34	47	44	41	38	30	32	36	46	35	26	17	15	19	20	21
Nearest Offshore or Glassy	Middle Beach Scot - Kintyre	Machrihanish Scot - Kintyre	Machrihanish Scot - Kintyre	Machrihanish Scot - Kintyre	Portballintrae Antrim	Lighthouse Sligo	Pollan Bay Donegal	Pollan Bay Donegal	Tramore Left Waterford	Five Finger Strand Donegal	Constantine Bay Cornwall (North)	Aln Estuary North East England	Aln Estuary North East England	Aln Estuary North East England	Coumeenole Kerry	Frainslake Sands Wales - Pembrokeshire	Black Middens North East England	Tramore Waterford	Pollan Bay Donegal	Lighthouse Sligo	Tramore Waterford	Frainslake Sands Wales - Pembrokeshire	Frainslake Sands Wales - Pembrokeshire	Newgale Wales - Pembrokeshire
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	255	249	249	249	249	286	287	287	208	288	306	305	305	305	415	184	284	210	287	286	210	184	184	163
Best forecast wave conditions in Anglesy
Rating (10 max)
Best forecast wave conditions in United Kingdom	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast	Birsay Bay Scot - Orkney	Birsay Bay Scot - Orkney		Melvich Scot - North Coast	Bragar (Lewis) Scot - Outer Hebrides	Nigg Bay Scot - East Coast	Thurso Reef Scot - North Coast	Thurso East Scot - North Coast	Birsay Bay Scot - Orkney	Rubh A Bhiogar (Lewis) Scot - Outer Hebrides	Bay of Skaill Scot - Orkney	Bay of Skaill Scot - Orkney	Thurso Reef Scot - North Coast	Thurso Reef Scot - North Coast	Thurso Reef Scot - North Coast	Thurso East Scot - North Coast	Thurso East Scot - North Coast
Rating (10 max)	2	1	1	1	1	1	1	1	1		1	1	1	1	1	1	1	1	1	1	1	1	2	2
Header Global	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Ilot Sancho Mauritius	Etang-Sale Reunion	Bluff Panama	Bluff Panama	Bluff Panama	Ilot Sancho Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Amanzimtoti South Africa	Benkunqut Indonesia	Injidup Carpark Australia	Bancoora Australia	Bullies Australia	Bullies Australia	Buchupureo Chile	Buchupureo Chile	Buchupureo Chile	Cathedral Rock Australia	Cathedral Rock Australia
Rating (10 max)	6	6	5	5	5	5	4	4	4	5	4	4	4	4	4	5	5	7	7	7	6	5	9	9

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

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