Llandanwg Surf Forecast

/ Wales – Mid (13 surf breaks) /

UK (471 surf breaks)

Surf Forecasts:

Llandanwg surfForecast / Wales – Mid / UK

48hr Weather and Surf, issued 6 pm Wednesday 17 Sep 2025 BST

Forecast update in hr min s Forecast update imminent

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

Today's Llandanwg sea temperature is 16.6° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Llandanwg today?

The current surf forecast for Llandanwg at 9PM is: 1.9m 8s primary swell from a West-southwest direction (forecast issued at 06:00pm September 17). The wind direction is predicted to be onshore.

Time (BST) & Date	Wave Height	Wave Period
Morning (17 Sep)	-	-
Afternoon (17 Sep)	6.5ft (2.0m)	9s
Evening (17 Sep)	6ft (1.9m)	8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 17			Thursday 18								Friday 19								Saturday 20
	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	1	1	1	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	WSW	WSW	WSW	WSW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW
Period(s) (?)	9	8	7	7	6	6	4	6	7	7	7	7	7	8	8	9	9	9	9	9	9	9	9	9
Wave Graph (?)
kJ (?)	623	447	320	229	145	64	51	219	271	200	200	226	203	175	162	141	110	78	76	56	55	46	32	20
Wind (km/h)	SW	SW	SW	SW	SW	SSW	SSW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SW	WSW	W	NW	NNE	ENE	SE	ESE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	on	on	on	cross- on	on	on	on	on	cross- on	cross- on	cross- on	cross- on	on	cross- on	glass	glass	glass	glass	cross	glass	cross- off	cross- off
High Tide / height (m)		5:42PM 3.34				6:23AM 3.24				6:43PM 3.68					7:13AM 3.53				7:30PM 4.01				7:54AM 3.81
Low Tide / height (m)					1:16AM 0.87				1:37PM 0.97				2:09AM 0.56				2:23PM 0.70				2:50AM 0.34

	Wednesday 17			Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	-	6:54	-	-	-	-	-	-	-	6:56	-	-	-	-	-	-	-	6:56	-	-
Sunset	-	7:28	-	-	-	-	-	-	-	7:25	-	-	-	-	-	-	-	7:22	-	-	-	-	-	-

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

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 - Mid

Wind Update Wind reports 27 km away suggest it is still onshore at Llandanwg (moderate winds from the SSW at Caernarfon). A 2.0m swell from the SW
53 minutes ago Llandanwg

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27 km away, 53 min ago

23 km/h

SSW

0.0

16.6

Air / Water (°C)

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