Surf Forecasts:
Southerndown surf forecast from 21 Aug 2026:
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 3.5ft (1.1m), 6s period, W swell with 94 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.1m 6s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Tuesday (Aug 25) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 28th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let's get into the outlook for the next couple of weeks.
I'm not gonna sugarcoat it – it's a grim forecast. We're looking at a long, dry spell with almost nothing to surf for the entire 16-day period. From now until the end of August, the surf is completely flat. There's a pulse of energy around the 30th of August and into the 1st of September that brings some size, but it's all but ruined by strong winds. The only break in the game is Southerndown, a beginner-friendly spot that's fairly consistent and faces southwest. The water temp is about 69°, which is much warmer than usual for this time of year, a huge anomaly of about 8°.
The first tiny bit of hope shows up on the morning of Sunday, August 30th. The swell pushes to about 4ft from the WSW, with a period of 8 seconds. The combined energy is moderate at 287. But the wind is onshore from the SW, making it a marginal, messy prospect.
The only real window where there's some size is early on Monday, August 31st. The morning shows a 5ft swell from the west, with an 8-second period. The combined energy hits 607, which is a solid moderate to strong reading. That's the biggest energy we see all forecast. But here's the kicker: the wind is onshore from the SW, so the waves are going to be blown out and choppy. It's a real heartbreaker because that size has some grunt, but the wind is going to destroy the shape. For a beginner spot like Southerndown, 5ft is big, and with poor conditions, it's a no-go.
The morning of Tuesday, September 1st, is a similar story. A 5ft west swell with 8 seconds, and energy of 489, is a decent amount of water moving. But, again, onshore SW wind. The setup is just a big, messy, onshore wind-swell. Honestly, for those days with a bit of size and that onshore wind, this looks more interesting for a kite surfer than a paddle surfer. After that, it drops right back off into the flatness again.
So, bottom line, there's no standout session here. The best you can hope for is a blown-out, choppy 4-5ft wave in the first few days of September, but it's not a day to get excited about. The first week and a half is a total zero, and the window that follows is too wind-affected to be any good. It's a tough one to swallow.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 22°C on Sun afternoon, min 12°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Wed night. Warm (max 24°C on Tue afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the E on Mon night, light winds from the SSW by Wed morning). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
AM | 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) | W 9 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | W 9 | WSW 11 | WSW 10 | WSW 9 | SW 13 | W 13 | SW 8 | W 10 | W 9 | SSW 5 | SW 6 | WSW 7 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 39 | 22 | 10 | 18 | 17 | 8 | 8 | 7 | 11 | 9 | 8 | 7 | 3 | 3 | 3 | 6 | 17 | 45 | 41 | 67 | 75 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | cross-off | cross-on | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-off | cross | on | on |
High Tide | 1:00PM6.16m | 1:39AM5.89m | 2:24PM5.84m | 3:16AM5.76m | 4:00PM5.98m | 4:38AM6.08m | 5:06PM6.47m | 5:32AM6.62m | 5:53PM7.08m | 6:13AM7.20m | 6:31PM7.70m | 6:49AM7.76m | 7:05PM8.26m | ||||||||
Low Tide | 7:14PM3.08m | 7:53AM3.28m | 8:46PM3.31m | 9:31AM3.29m | 10:20PM3.09m | 10:50AM2.91m | 11:23PM2.60m | 11:43AM2.36m | 00:08AM2.02m | 12:22PM1.78m | 00:45AM1.45m | 12:57PM1.25m | 1:17AM0.97m | ||||||||
 | |  |  | |  | | | | | | | | |  | |  | |  |  |  | |
 | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | 1 | 5 | — | 1 | 7 |
Temp °C | 17 | 18 | 16 | 17 | 19 | 17 | 19 | 22 | 19 | 21 | 23 | 19 | 22 | 24 | 19 | 22 | 22 | 17 | 21 | 20 | 16 |
Feels °C | 13 | 14 | 12 | 14 | 16 | 14 | 17 | 20 | 18 | 14 | 17 | 12 | 16 | 18 | 18 | 23 | 20 | 16 | 18 | 17 | 9 |
Swell 1 Height (m) Direction Period (s) | W 9 | WSW 8 | W 5 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | W 9 | WSW 11 | WSW 10 | WSW 9 | SW 9 | W 8 | SW 8 | SW 9 | W 9 | W 8 | SW 6 | WSW 7 | W 9 | W 6 |
| kJ | 39 | 22 | 5 | 18 | 17 | 8 | 8 | 6 | 11 | 9 | 8 | 3 | 1 | 3 | 3 | 6 | 5 | 45 | 41 | 25 | 75 |
Swell 2 Height (m) Direction Period (s) | — | W 13 | WSW 8 | SW 15 | SW 15 | — | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 8 | W 8 | W 8 | — | SW 8 | W 8 | SW 7 | — | — |
| kJ | — | 3 | 7 | 9 | 9 | — | 8 | 7 | 8 | 8 | 8 | 7 | 3 | 1 | 1 | — | 2 | 5 | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 16 | W 15 | — | SW 15 | W 15 | — | — | — | — | — | W 13 | — | W 10 | SW 8 | — | — | — | — | — |
| kJ | — | — | 10 | 5 | — | 8 | 4 | — | — | — | — | — | 3 | — | 2 | 3 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | NE 2 | — | — | — | — | — | — | E 3 | E 3 | E 3 | E 3 | E 3 | — | — | SSW 5 | SSE 3 | — | W 6 | WSW 6 |
| kJ | — | 4 | 1 | — | — | — | — | — | — | 2 | 6 | 8 | 11 | 1 | — | — | 17 | 1 | — | 67 | 62 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 236 | 43 | 43 | 208 | 56 | 142 | 133 | 50 | 425 | 306 | 315 | 306 | 171 | 92 | 243 | 43 | 12 | 206 | 206 | 359 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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 Southerndown 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 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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