Surf Forecasts:
Southerndown surf forecast from 24 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 1AM (local time) - 6ft (1.8m), 8s period, W swell with 381 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.8m 8s and forecast to arrive on Saturday (Aug 29) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 29th Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright crew, Rusty here again, giving you the lowdown on Southerndown. We've got a long dry spell ahead before anything decent shows up.
The start is real slow. Nothing worth paddling for until we get to the 1st of September. Tuesday morning on the 1st brings in a 4ft swell out of the WSW with a 9-second period and moderate energy (340). The wind will be from the WNW giving us some cross-shore, with a little chop on the face. It's better than the flat and windy days before it, but nothing to get too fired up about.
The big date to circle is Monday the 7th of September. That morning brings a proper pulse: 12ft from the WSW with a 10-second period and massive 2340 combined energy. Then that afternoon it goes even bigger—15ft, 16-second period, and energy reading 8899. That's serious, heavy groundswell. With that 16-second period (very long), it'll be a straight-out, fast-breaking beach break. It's going to be a tough paddle and it's way too big for beginners. For the experts, the morning session is the pick with a light cross-offshore breeze from the N. If you know the break, this is the one.
Earlier in the week, on Thursday morning the 3rd of September, there's a cleaner little window. A 5ft W swell with 9-second period (364 energy) and glassy conditions—a WNW light breeze, no wind. That session will be clean, smooth, and manageable for intermediate surfers. A proper little gem before the wind messes it up again.
The rest of the run is dominated by messy onshore winds, a lot of rain, and mediocre wave quality. The water is sitting around 69°, which is nearly 8° warmer than usual for this time of year—very weird, but you won't need a thick suit.
So to sum it up: it's a waiting game until the first week of September. The 3rd is your clean, glassy option for the everyday surfer, and the 7th is for the hardcore crew ready to charge some serious size.
Stay patient, stay salty.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu morning. Warm (max 26°C on Tue afternoon, min 14°C on Mon night). Winds decreasing (fresh winds from the E on Tue morning, calm by Thu morning). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat morning. Warm (max 21°C on Sun morning, min 15°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the W by Fri night). | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 13 | W 13 | W 10 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | SW 5 | WSW 6 | WSW 6 | W 8 | WSW 7 | WSW 6 | WSW 5 | SW 8 | WSW 8 | WSW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 8 | 7 | 3 | 3 | 8 | 8 | 13 | 6 | 5 | 5 | 22 | 69 | 80 | 381 | 82 | 29 | 6 | 15 | 43 | 48 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | cross | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on |
High Tide | 5:06PM6.47m | 5:32AM6.62m | 5:53PM7.08m | 6:13AM7.20m | 6:31PM7.70m | 6:49AM7.76m | 7:05PM8.26m | 7:22AM8.24m | 7:38PM8.71m | 7:55AM8.61m | 8:11PM9.00m | 8:29AM8.84m | 8:45PM9.12m | |||||||
Low Tide | 11:23PM2.60m | 11:43AM2.36m | 00:08AM2.02m | 12:22PM1.78m | 00:45AM1.45m | 12:57PM1.25m | 1:17AM0.97m | 1:28PM0.82m | 1:48AM0.59m | 1:59PM0.51m | 2:18AM0.36m | 2:29PM0.35m | 2:48AM0.29m | |||||||
 |  |  |  |  | | |  |  | |  | | |  |  | | | |  |  | |
 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — |
mm | — | — | — | — | 1 | — | — | 2 | 4 | — | — | — | — | — | 3 | 1 | — | — | 3 | 5 |
Temp °C | 23 | 19 | 22 | 26 | 17 | 20 | 25 | 19 | 18 | 19 | 17 | 19 | 18 | 17 | 18 | 19 | 18 | 21 | 19 | 16 |
Feels °C | 17 | 13 | 17 | 22 | 16 | 20 | 23 | 18 | 16 | 16 | 16 | 15 | 14 | 14 | 16 | 15 | 14 | 16 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 9 | W 8 | W 8 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 5 | WSW 6 | — | WSW 8 | WSW 7 | WSW 6 | WSW 5 | SW 8 | WSW 8 | WSW 7 |
| kJ | 3 | 3 | 1 | 1 | 8 | 8 | 13 | 6 | 5 | 5 | 17 | 69 | — | 257 | 82 | 29 | 6 | 15 | 43 | 48 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | W 13 | W 10 | SW 8 | — | — | — | — | — | W 8 | W 11 | — | — | — | — | SW 9 | — | — | — |
| kJ | 8 | 7 | 3 | 2 | 3 | — | — | — | — | — | 5 | 2 | — | — | — | — | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 8 | — | SW 8 | S 8 | — | — | — | W 7 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 3 | — | 2 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | E 3 | E 3 | SSE 3 | — | — | — | — | — | SW 5 | SSW 2 | WSW 6 | W 8 | — | — | W 3 | WSW 4 | W 2 | — |
| kJ | 5 | 7 | 5 | 1 | 1 | — | — | — | — | — | 22 | 1 | 80 | 381 | — | — | 2 | 6 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 323 | 306 | 142 | 126 | 56 | 92 | 92 | 327 | 327 | 135 | 30 | 93 | 165 | 296 | 190 | 306 | 93 | 460 | 359 | 354 |
Best forecast wave conditions in Wales - South East | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Southerndown Surf forecast
The above surf forecast table for Southerndown provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Southerndown can be found by selecting the local surf guide option on the grey menu. Our Southerndown 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 (Southerndown) 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 Southerndown 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 Wales - South East? If you are looking for accommodation near Southerndown, camping, hotels and holiday cottages in Wales - South East, consider staying in Porthcawl which is 6 km (4 miles) away. Other places in and around Wales - South East where you can find information about places to rent, and car hire include Nash Point which is 8 km (5 miles) away, Coity, Maesteg and Barry.
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