Surf Forecasts:
Southerndown surf forecast from 24 Aug 2026:
- Most powerful swell: Monday 31 Aug, 10AM (local time) - 7ft (2.2m), 10s period, WSW swell with 988 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 2.2m 10s and forecast to arrive on Monday (Aug 31) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Aug 24) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 31st Aug) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Right then, let's have a look at what Southerndown's got cookin' over the next couple of weeks. Straight up, it's a bit of a flat spell to start, and honestly, the whole window looks pretty average. The water's sitting at 69°F right now, which is much warmer than normal for this time of year, so at least you won't be cold while you're waiting for something to ride.
We're kicking off Monday the 24th, but don't get your hopes up. Tiny little knee-high slop at 0.7ft from the WSW, and the 19 mph easterly is just ripping straight across it. It’s a write-off. That pretty much sums up the whole first week, right through to Sunday the 30th of August. There's a bit of a bump on the Saturday morning the 29th, pushing 3ft from the WSW, but the wind's on it. It's not enough to get excited about; the combined energy is weak (187) and it's just not happening. We're looking at a solid blank run for the first seven days – nothing worth paddling out for.
Now, moving into the next week, things get a bit more interesting, even if the conditions are still messy. On Monday the 31st of August, we see a jump in size with a 7ft SW swell, but the wind is a fresh cross-onshore at 22 mph. The wave energy is strong (988), but that onshore wind is going to make it a lumpy, blown-out mess. For the experienced crew, it might be worth a look for a few chunky close-outs, but honestly, with that wind and a beach break setup, it's looking more like a kite-surfing day than a paddle-surfing one.
The real standout, and I mean the only real standout in this whole 16-day outlook, comes on Monday the 7th of September. We're looking at a massive 10ft groundswell from the west, with a very long period of 19 seconds. The combined energy is absolutely pumping at 10285. This is serious, heavy water. The problem is the wind is a moderate cross-onshore from the WNW at 16 mph, which will put a chop on it. That long-period west swell is going to be fast and powerful, and it'll wrap in with plenty of juice, but it's going to be tricky. This is strictly for experts only – the size is well over 8ft, so if you're not confident, stay on the beach. The 7ft SW swell on the Monday afternoon stays solid (4357 energy), but again, the wind is a problem.
After that, Tuesday the 8th of September drops back to a more manageable 6ft from the WSW, but the wind is still a fresh cross-shore. It's a shame, because without the wind, the swell direction from the WSW is right in the sweet spot for Southerndown, but the conditions will keep it from being clean.
So, the only one to circle on the calendar is that Monday the 7th of September. It's got the size and the grunt, but it’s a long-range call so don’t book the time off just yet. The wind could change, but as it stands, it's the only day with any real punch. For now, keep the board in the car and the expectations low.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 25°C on Tue afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the E on Mon morning, light winds from the ESE by Wed night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 20°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Thu afternoon, fresh winds from the WSW by Sat night). | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | WSW 9 | SW 14 | SW 13 | SW 13 | W 10 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | WSW 7 | SW 8 | WSW 7 | W 6 | W 7 | WSW 6 | WSW 6 | WSW 6 | SW 6 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 8 | 7 | 7 | 3 | 8 | 16 | 13 | 11 | 5 | 7 | 35 | 64 | 61 | 56 | 96 | 37 | 43 | 42 | 88 | 463 |
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-off | cross | cross | cross-off | on | glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-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 | 10:50AM2.91m | 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 | — | — | 6:13 | — | — | 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 | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | 2 | — | — | 7 | 3 |
Temp °C | 21 | 24 | 20 | 21 | 25 | 20 | 22 | 23 | 18 | 19 | 20 | 17 | 18 | 19 | 16 | 19 | 18 | 17 | 21 | 20 | 16 |
Feels °C | 14 | 18 | 14 | 16 | 21 | 19 | 21 | 22 | 18 | 19 | 21 | 15 | 16 | 16 | 14 | 17 | 14 | 12 | 19 | 17 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | SW 9 | SW 9 | W 8 | W 8 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | WSW 7 | SW 8 | — | W 8 | W 7 | — | W 6 | WSW 6 | — | — |
| kJ | 9 | 3 | 3 | 1 | 1 | 8 | 16 | 13 | 11 | 5 | 7 | 35 | 64 | — | 1 | 91 | — | 39 | 42 | — | — |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | W 10 | SW 8 | SW 8 | — | S 7 | — | W 7 | W 11 | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 8 | 7 | 7 | 2 | 3 | 2 | — | 1 | — | 4 | 3 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 8 | — | — | — | — | — | — | W 8 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 3 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | E 3 | ENE 3 | ESE 3 | — | — | S 8 | — | — | — | — | — | WSW 7 | W 6 | WSW 7 | WSW 6 | WSW 6 | — | SW 6 | WSW 8 |
| kJ | 2 | 5 | 3 | 3 | 1 | — | — | 1 | — | — | — | — | — | 61 | 56 | 96 | 37 | 43 | — | 88 | 463 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 425 | 406 | 318 | 142 | 92 | 50 | 149 | 92 | 375 | 142 | 43 | 101 | 107 | 131 | 30 | 52 | 246 | 306 | 189 | 460 | 460 |
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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