Trefor Surf Forecast

/ Wales – Lleyn (14 surf breaks) /

UK (471 surf breaks) / Lat Long: (53.00° N 4.42° W)

Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

48hr Weather and Surf, issued 12 pm Wednesday 27 Aug 2025 BST

Forecast update in hr min s Forecast update imminent

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

Today's Trefor sea temperature is 18.6° C
(Which is 2.9°C warmer than normal for this time of year)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 2PM is: 1.3m 7s primary swell from a Southwest direction and 0.2m 14s secondary swell from a West-southwest direction (forecast issued at 12:00pm August 27). The wind direction is predicted to be cross-offshore.

Time (BST) & Date	Wave Height	Wave Period
Morning (27 Aug)	1ft (0.3m)	14s
Afternoon (27 Aug)	4.5ft (1.4m)	7s
Evening (27 Aug)	5ft (1.6m)	6s

Table - waves today at Trefor. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 27					Thursday 28								Friday 29								Saturday 30
	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	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM
Rating (10 max)	0	0	0	0	0	0	1	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 (?)	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	SW	SW	SW	SW	SW	SW
Period(s) (?)	6	7	7	6	6	7	7	7	7	7	5	6	6	7	6	7	7	5	7	7	6	6	8	8
Wave Graph (?)
Energy (?)	216	193	215	0	224	226	155	135	128	128	0	0	112	135	0	138	134	67	106	92	67	58	68	75
Wind (km/h)	SSW	WSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	S	SW	SW	SW	WSW	WSW	WSW	WSW	W	WSW	SSW	SW	W	SSW	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross	cross	cross	cross	cross- off	cross- off	cross	cross- off	cross- off
High Tide / height (m)		11:46AM 3.42				12:02AM 3.63				12:19PM 3.28				12:36AM 3.37				12:52PM 3.08					1:11AM 3.07
Low Tide / height (m)				6:33PM 0.46				6:58AM 0.52					7:03PM 0.67				7:27AM 0.79				7:37PM 0.90

	Wednesday 27					Thursday 28								Friday 29								Saturday 30
Sunrise	-	-	-	-	-	-	-	6:18	-	-	-	-	-	-	-	6:20	-	-	-	-	-	-	-	6:22
Sunset	-	-	-	8:19	-	-	-	-	-	-	-	8:16	-	-	-	-	-	-	-	8:14	-	-	-	-

Rain (mm)	10	3	-	-	1	1	2	1	2	2	3	1	1	1	-	-	-	1	1	-	-	-	-	-
Temp. °C	15	16	17	16	15	15	15	14	15	14	15	15	15	14	14	14	15	15	16	16	16	15	14	15
Feels °C (?)	11	12	12	12	11	11	13	11	12	11	10	9	10	9	10	10	13	11	13	15	15	14	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 - Lleyn

Wind Update The wind is still cross-off at Trefor (fresh winds from the SW at Caernarfon Airport 13 km from Trefor). 1.3m 7s swell from the WSW to make surfable waves.
2 hours 6 minutes ago Trefor

Expand

View all

2 h 6 min ago

33 km/h

Cross-Off

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trefor 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.