Porth Nobla Surf Forecast

/ Wales – Anglesy (10 surf breaks) /

UK (473 surf breaks)

Surf Forecasts:

Porth Nobla surfForecast / Wales – Anglesy / UK

12 Day Weather and Surf, issued 11 pm Tuesday 04 Nov 2025 GMT

Forecast update in hr min s Forecast update imminent

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

Today's Porth Nobla sea temperature is 13.2° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Porth Nobla this week:

The surf forecast for Porth Nobla over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 07) at 3PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.4m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porth Nobla in the next 12 days are 3.0m 8s and forecast to arrive on Sunday (Nov 09) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Wednesday (Nov 12) at 3AM.

Wave Type	Time (GMT) & Date	Wave Height & Period
Next good surf (1 star+)	3PM (Fri 7th Nov)	3ft (0.9m) 6s
Best Surf	12PM (Sat 8th Nov)	6ft (1.8m) 6s
Most Powerful	3PM (Sun 9th Nov)	10ft (3.0m) 8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 13mm), heaviest on Wed morning. Very mild (max 15°C on Tue night, min 12°C on Thu night). Winds decreasing (strong winds from the S on Wed afternoon, light winds from the SE by Fri morning).										Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sun night. Very mild (max 14°C on Sat morning, min 11°C on Mon afternoon). Wind will be generally light.
		Wednesday 05			Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10			Tue 11
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	1	0	1	2	1	2	1	2	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SSW	SW	SW	SSW	SSW	SW	SW	SSW	SSW	SSW	SSW
Period(s) (?)	9	6	9	10	10	10	9	9	6	9	7	6	6	7	8	8	8	6	6	7	8
Wave Graph (?)
kJ (?)	360	255	616	517	299	120	127	55	55	20	143	193	159	801	965	289	163	262	206	468	426
Wind (km/h)	S	S	S	S	S	SSW	SSE	SSE	E	E	SSW	S	E	SSE	S	ESE	SSW	W	SSW	SE	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross- off	cross- off	glass	glass	cross- off	cross- on	cross- on	cross- off	on	cross- on	on	cross	cross- on
High Tide / height (m)		8:24AM 4.24		8:40PM 4.48	9:04AM 4.38		9:25PM 4.49	9:46AM 4.40		10:11PM 4.35	10:30AM 4.31		11:00PM 4.08	11:17AM 4.12		11:53PM 3.72		12:10PM 3.85	12:55AM 3.34		1:15PM 3.58
Low Tide / height (m)	2:53AM -0.17		3:12PM -0.03		3:37AM -0.23	3:58PM -0.18		4:22AM -0.16	4:45PM -0.20		5:08AM 0.03	5:34PM -0.09		5:57AM 0.31		6:27PM 0.13	6:48AM 0.63		7:25PM 0.41	7:46AM 0.94

		Wednesday 05			Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10			Tue 11
Sunrise	-	7:22	-	-	7:24	-	-	7:26	-	-	7:28	-	-	7:30	-	-	7:31	-	-	7:33	-
Sunset	-	-	4:38	-	-	4:37	-	-	4:36	-	-	4:34	-	-	4:31	-	-	4:30	-	-	4:29

Rain (mm)	5	6	1	-	-	-	-	-	1	-	-	-	-	-	-	6	3	1	-	3	1
Temp. °C	15	15	15	15	14	14	14	14	14	13	14	14	13	13	13	12	12	12	11	12	13
Feels °C (?)	11	9	9	11	12	12	13	13	12	11	14	14	13	11	10	9	7	9	8	3	5

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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Information about the Porth Nobla Surf forecast

The above surf forecast table for Porth Nobla provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Nobla can be found by selecting the local surf guide option on the grey menu. Our Porth Nobla 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 (Porth Nobla) 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 Porth Nobla 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 Porth Nobla, camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 2 km (1 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 12 km (7 miles) away, Bangor, Porthmadog and Llandudno.