Rest Bay Surf Forecast

/ Wales – South East (14 surf breaks) /

UK (471 surf breaks) / Lat Long: (51.49° N 3.73° W)

Surf Forecasts:

Rest Bay surfForecast / Wales – South East / UK

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

Forecast update in hr min s Forecast update imminent

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

Today's Rest Bay sea temperature is 17.4° C
(Which is 1.7°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Rest Bay this week:

The surf forecast for Rest Bay 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 1.2m and 10s 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 Rest Bay in the next 12 days are 1.4m 9s and forecast to arrive on Friday (Sep 19) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 21) at 10PM.

Wave Type	Time (BST) & Date	Wave Height & Period
Next good surf (1 star+)	10PM (Fri 19th Sep)	4ft (1.2m) 10s
Best Surf	10PM (Fri 19th Sep)	4ft (1.2m) 10s
Most Powerful	7AM (Fri 19th Sep)	4.5ft (1.4m) 9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 7mm), mostly falling on Sat afternoon. Very mild (max 19°C on Thu afternoon, min 12°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the NE by Sun morning).											Days 3-6 Weather Summary Mostly dry. Very mild (max 15°C on Mon afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the NE on Sun afternoon, calm by Tue 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	1	0	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 (?)	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	W	W	W	W	W	WSW	WSW	WSW	WSW	WSW
Period(s) (?)	11	9	9	10	9	9	9	9	8	8	7	9	8	8	7	13	12	11	11	10	10
Wave Graph (?)
kJ (?)	686	333	312	240	207	124	101	113	72	87	10	2	1	1	1	4	15	25	40	34	31
Wind (km/h)	WSW	SSW	SE	W	S	S	W	SW	ENE	NE	NE	NE	NE	NE	ENE	SW	ENE	NE	ENE	NE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	cross- on	cross- off	on	cross	cross	cross- on	cross- on	off	off	cross- off	off	off	off	glass	cross- on	off	off	off	off	off
High Tide / height (m)	5:05PM 7.24		5:34AM 7.31	5:54PM 7.84		6:17AM 7.86	6:34PM 8.35		6:54AM 8.30		7:09PM 8.70	7:27AM 8.59		7:42PM 8.88	7:58AM 8.73		8:13PM 8.89	8:29AM 8.71		8:43PM 8.72	8:58AM 8.52
Low Tide / height (m)		11:33PM 1.86	11:50AM 1.74		12:16AM 1.32	12:29PM 1.24		12:50AM 0.90		1:01PM 0.84	1:20AM 0.61		1:31PM 0.59	1:48AM 0.47		1:59PM 0.48	2:16AM 0.48		2:28PM 0.54	2:43AM 0.65

	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	-	-	6:54	-	-	6:56	-	-	6:58	-	-	6:58	-	-	7:01	-	-	7:03	-	-	7:03
Sunset	7:22	-	-	7:21	-	-	7:19	-	-	7:15	-	-	7:14	-	-	7:12	-	-	7:08	-	-

Rain (mm)	-	-	-	-	-	2	4	1	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	19	17	19	19	16	17	15	14	13	14	13	13	15	12	12	14	14	14	15	15	14
Feels °C (?)	15	15	17	18	17	16	11	10	7	6	5	6	9	6	10	12	10	10	10	10	9

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 - South East

Wind Update Continuing clean conditions at Rest Bay (light winds from the SSE at St Athan 23 km from Rest Bay). 1.1m 7s swell from the WSW with a 0.7m 10s swell, also from the WSW. 2 swells combining to make bigger set waves.
56 minutes ago Rest Bay

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23 km away, 56 min ago

9 km/h

SSE

0.0

17.4

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 Rest Bay 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 Rest Bay Surf forecast

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

Rest Bay is 1 km (1 miles) from Porthcawl. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Porthcawl. Porthcawl has rooms for a wide range of budgets as well as car hire and transport links.