Aberffraw Surf Forecast

/ Wales – Anglesy (10 surf breaks) /

UK (471 surf breaks) / Lat Long: (53.18° N 4.46° W)

Surf Forecasts:

Aberffraw surfForecast / Wales – Anglesy / UK

12 Day Weather and Surf, issued 6 am Thursday 18 Sep 2025 BST

Forecast update in hr min s Forecast update imminent

Aberffraw surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Aberffraw sea temperature is 16.3° C
(Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Aberffraw this week:

The surf forecast for Aberffraw over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 7PM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Aberffraw in the next 12 days are 2.1m 7s and forecast to arrive on Friday (Sep 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Sep 21) at 4PM.

Wave Type	Time (BST) & Date	Wave Height & Period
Next good surf (1 star+)	7PM (Fri 19th Sep)	3ft (0.9m) 9s
Best Surf	7PM (Fri 19th Sep)	3ft (0.9m) 9s
Most Powerful	1AM (Fri 19th Sep)	7ft (2.1m) 7s

Table - best surf conditions forecast for Aberffraw over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Heavy rain (total 35mm), heaviest during Sat afternoon. Very mild (max 17°C on Thu afternoon, min 13°C on Fri afternoon). Winds decreasing (strong winds from the SSW on Thu night, calm by Fri night).									Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sun morning. Very mild (max 13°C on Tue afternoon, min 10°C on Sun morning). Winds decreasing (near gales from the NNE on Sun night, light winds from the N by Mon night).
	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	1	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 (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SW	W	W	NW	NNW	NNW	W	W	W
Period(s) (?)	5	7	7	7	9	9	9	9	6	8	8	7	6	13	13	4	4	4	12	11	11
Wave Graph (?)
kJ (?)	68	357	472	184	152	65	28	12	6	66	42	5	2	3	3	0	0	0	3	2	2
Wind (km/h)	SSW	SSW	SSW	SSW	W	NE	NE	ENE	SE	NNE	NNE	NNE	NNE	NNE	N	NNW	NNW	N	NNE	NNW	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	cross- on	on	cross- on	glass	off	off	cross- off	cross- off	cross- off	off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)			8:14PM 3.62	8:51AM 3.46		8:54PM 3.88	9:23AM 3.65		9:29PM 4.09	9:53AM 3.81		10:01PM 4.22	10:22AM 3.92		10:32PM 4.26	10:51AM 3.97		11:04PM 4.22	11:21AM 3.95		11:36PM 4.08
Low Tide / height (m)		2:22PM 0.85	2:54AM 0.40		3:09PM 0.58	3:37AM 0.16		3:49PM 0.37		4:15AM 0.02	4:25PM 0.23		4:49AM -0.03	4:59PM 0.18		5:21AM 0.02	5:31PM 0.20		5:52AM 0.15	6:02PM 0.29

	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	6:54	-	-	6:56	-	-	6:58	-	-	7:00	-	-	7:01	-	-	7:03	-	-	7:05	-	-
Sunset	-	7:27	-	-	7:24	-	-	7:22	-	-	7:20	-	-	7:16	-	-	7:15	-	-	7:13	-

Rain (mm)	2	1	3	3	4	5	5	6	6	4	2	2	-	-	-	1	1	-	-	-	-
Temp. °C	16	17	17	16	15	13	13	15	15	11	11	11	12	12	12	12	13	13	14	14	14
Feels °C (?)	12	12	11	14	14	12	10	14	13	2	2	0	5	6	9	8	11	11	12	12	13

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

Recent Eyeball Surf Reports for Wales - Anglesy

Wind Update Wind reports 8 km away suggest it is still onshore at Aberffraw (moderate winds from the SW at Valley RAF Airport). A 1.4m windswell from the WSW
1 hour 53 minutes ago Aberffraw

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1 h 53 min ago

26 km/h

Onshore

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aberffraw surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Information about the Aberffraw Surf forecast

The above surf forecast table for Aberffraw provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Aberffraw can be found by selecting the local surf guide option on the grey menu. Our Aberffraw surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aberffraw) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Aberffraw may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Anglesy? If you are looking for accommodation near Aberffraw, camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 9 km (6 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 19 km (12 miles) away, Bangor, Porthmadog and Llandudno.