Barmouth Surf Forecast

/ Wales – Mid (13 surf breaks) /

UK (473 surf breaks) / Lat Long: (52.72° N 4.06° W)

Surf Forecasts:

Barmouth surfForecast / Wales – Mid / UK

12 Day Weather and Surf, issued 11 pm Friday 31 Oct 2025 GMT

Forecast update in hr min s Forecast update imminent

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

Today's Barmouth sea temperature is 12.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Barmouth this week:

The surf forecast for Barmouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 05) at 9AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.2m and 15s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Barmouth in the next 12 days are 2.2m 10s and forecast to arrive on Saturday (Nov 01) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Nov 05) at 12PM.

Wave Type	Time (GMT) & Date	Wave Height & Period
Next good surf (1 star+)	9AM (Wed 5th Nov)	2.5ft (0.8m) 10s
Best Surf	9AM (Wed 5th Nov)	2.5ft (0.8m) 10s
Most Powerful	6AM (Sat 1st Nov)	7ft (2.2m) 10s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 43mm), heaviest during Fri night. Very mild (max 14°C on Sun night, min 9°C on Sat night). Winds increasing (moderate winds from the W on Sat night, strong winds from the SW by Sun night).										Days 3-6 Weather Summary Heavy rain (total 43mm), heaviest during Wed afternoon. Very mild (max 14°C on Mon night, min 10°C on Wed night). Winds decreasing (fresh winds from the S on Mon night, light winds from the SSE by Tue night).
		Saturday 01			Sunday 02			Monday 03			Tuesday 04			Wednesday 05			Thursday 06			Fri 07
	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	0	0	0	0	1	1	1	0	1	0	0	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	WSW	WSW	SW	WSW	WSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	W	WSW	SW	SW	SW
Period(s) (?)	8	11	11	7	10	10	7	9	9	9	10	10	10	10	9	8	7	6	6	10	10
Wave Graph (?)
kJ (?)	643	807	521	465	301	378	296	823	965	783	825	530	273	110	41	519	506	205	108	709	717
Wind (km/h)	SSW	W	WSW	SSW	W	WSW	SW	SSW	SSW	S	S	S	SSE	ESE	E	SE	NNE	NW	WNW	SE	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	on	cross- on	cross- on	cross- on	on	on	on	cross- on	cross- on	cross- on	cross- on	cross- off	cross- off	cross	cross- off	cross- off	cross- on	cross	cross
High Tide / height (m)		4:09AM 3.70	4:35PM 4.21		5:08AM 4.14	5:27PM 4.65		5:54AM 4.60		6:13PM 5.07	6:37AM 5.00		6:57PM 5.38	7:20AM 5.28		7:42PM 5.53	8:04AM 5.42		8:28PM 5.51	8:49AM 5.42
Low Tide / height (m)	10:59PM 1.68	11:23AM 1.82		11:53PM 1.36		12:15PM 1.52	12:43AM 1.09		1:04PM 1.25	1:30AM 0.91		1:52PM 1.05	2:17AM 0.80		2:40PM 0.92		3:02AM 0.78	3:26PM 0.85		3:47AM 0.83	4:12PM 0.85

		Saturday 01			Sunday 02			Monday 03			Tuesday 04			Wednesday 05			Thursday 06			Fri 07
Sunrise	-	7:11	-	-	7:13	-	-	7:15	-	-	7:16	-	-	7:18	-	-	7:20	-	-	7:22	-
Sunset	-	-	4:45	-	-	4:45	-	-	4:43	-	-	4:40	-	-	4:38	-	-	4:37	-	-	4:35

Rain (mm)	11	3	3	8	1	1	4	6	6	3	2	3	17	-	11	6	1	-	-	1	8
Temp. °C	13	11	10	10	11	12	14	14	14	14	14	14	14	14	13	13	11	11	11	11	12
Feels °C (?)	7	4	3	3	4	5	7	6	6	8	9	11	12	12	11	7	8	7	7	8	10

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 Barmouth Surf forecast

The above surf forecast table for Barmouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Barmouth can be found by selecting the local surf guide option on the grey menu. Our Barmouth 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 (Barmouth) 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 Barmouth 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.

Barmouth is 22 km (14 miles) from Porthmadog. If you plan a holiday in Mid Wales, look for hotels and other accommodation in Porthmadog. Porthmadog has rooms for a wide range of budgets as well as car hire and transport links.