Abersoch Surf Forecast

/ Wales – Lleyn (14 surf breaks) /

UK (471 surf breaks) / Lat Long: (52.82° N 4.51° W)

Surf Forecasts:

Abersoch surfForecast / Wales – Lleyn / UK

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

Forecast update in hr min s Forecast update imminent

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

Today's Abersoch sea temperature is 16.6° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Abersoch this week:

The surf forecast for Abersoch over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 10PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Abersoch in the next 12 days are 2.0m 7s and forecast to arrive on Friday (Sep 19) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Sunday (Sep 21) at 1AM.

Wave Type	Time (BST) & Date	Wave Height & Period
Next good surf (1 star+)	10PM (Fri 19th Sep)	3.5ft (1.1m) 9s
Best Surf	10PM (Fri 19th Sep)	3.5ft (1.1m) 9s
Most Powerful	1AM (Fri 19th Sep)	6.5ft (2.0m) 7s

Table - best surf conditions forecast for Abersoch 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 22mm), heaviest during Sat morning. Very mild (max 17°C on Thu afternoon, min 11°C on Sun morning). Mainly strong winds.											Days 3-6 Weather Summary Mostly dry. Very mild (max 13°C on Sun afternoon, min 10°C on Sun night). Winds decreasing (fresh winds from the NNE on Sun afternoon, light winds from the E by Wed morning).
	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	1	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 (?)	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	SW	SW	SW	W	W	W	W	W	W	W	SW
Period(s) (?)	6	7	8	9	9	9	9	9	8	8	13	13	13	13	12	12	12	12	11	11	10
Wave Graph (?)
kJ (?)	284	400	322	263	135	64	37	8	8	8	7	7	7	3	3	3	3	3	2	2	4
Wind (km/h)	SSW	SSW	S	SSW	SSW	SW	NNW	N	NE	NNE	NE	NE	N	NE	NNE	N	ENE	E	NW	E	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross	cross- on	cross- on	cross- on	cross- on	cross	cross- on	cross- on	cross	on	on	cross- off	on	on
High Tide / height (m)	6:49PM 3.68		7:20AM 3.54		7:36PM 4.02	8:01AM 3.82		8:16PM 4.29	8:38AM 4.05		8:53PM 4.47	9:12AM 4.21		9:27PM 4.55	9:45AM 4.28		10:01PM 4.51	10:17AM 4.26		10:33PM 4.37	10:49AM 4.15
Low Tide / height (m)		2:17AM 0.53		2:31PM 0.67	2:59AM 0.31		3:10PM 0.48	3:35AM 0.19		3:43PM 0.36		4:06AM 0.16	4:13PM 0.33		4:34AM 0.22	4:40PM 0.36		4:59AM 0.34	5:05PM 0.44		5:23AM 0.52

	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	-	-	6:56	-	-	6:58	-	-	7:01	-	-	7:01	-	-	7:03	-	-	7:05	-	-	7:07
Sunset	7:27	-	-	7:24	-	-	7:22	-	-	7:20	-	-	7:17	-	-	7:15	-	-	7:13	-	-

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

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 - Lleyn

Wind Update The wind is still cross-off at Abersoch (near gales from the SSW at Aberdaron 16 km from Abersoch). 1.9m 6s windswell from the SW with a 0.4m 11s groundswell from the W. 2 swells combining so expect closeout sets.
1 hour 35 minutes ago Abersoch

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16 km away, 1 h 35 min ago

52 km/h

SSW

0.0

16.6

Air / Water (°C)

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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 Abersoch 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 Abersoch Surf forecast

The above surf forecast table for Abersoch provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Abersoch can be found by selecting the local surf guide option on the grey menu. Our Abersoch 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 (Abersoch) 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 Abersoch 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 Lleyn Peninsula? If you are looking for accommodation near Abersoch, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 28 km (17 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 47 km (29 miles) away, Aberystwyth, Holyhead and Bangor.