Surf Forecasts:
Southerndown surf forecast from 13 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 1PM (local time) - 4.5ft (1.4m), 7s period, WSW swell with 191 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.4m 7s and forecast to arrive on Wednesday (Aug 19) at 1PM. 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 4s period and expected on Thursday (Aug 20) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 19th Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – if you're looking to get your fix at Southerndown over the next couple of weeks, you're gonna be fighting an uphill battle. The whole 16-day window is pretty grim. Let's break it down.
The water is running at 69° right now, which is much warmer than normal for this time of year, so at least the wait won't be a cold one.
The first few days are a write-off. Thursday the 13th kicks off with tiny 2ft swell from the WSW and a light cross-shore breeze, but the energy is weak (86) and the conditions are just poor. That pretty much sets the tone. Friday and Saturday are even smaller, with increasing winds ruining any chance. There's a proper gap here with nothing worth paddling out for.
We get a tease on Tuesday the 18th, when the swell bumps up to 4ft from the west. But look at the wind – it's onshore at 25 km/h, making for moderate cross-onshore and choppy conditions. The wave energy is moderate (130), but it's a messy, blown-out affair. That's a pass for me.
Then things drop right off again. Another long stretch of tiny, poor surf continues all the way through the 26th. You'll see a few mornings with glassy or clean conditions, like Sunday the 16th morning with 1ft and glassy wind, and Saturday the 22nd morning with clean cross-off winds on 1ft. But the swell is just too small to do anything with.
The only real, and I mean *only*, standout window comes right at the very end. On the afternoon of Friday the 28th of August, things finally line up. The swell is 3ft from the W with a period of 9 seconds, but the real story is the *offshore* wind from the ENE at 25 km/h. That's going to groom the wave face clean. The combined wave energy hits 213, which is moderate and actually punchy for that size. We also see fresh offshore winds on Thursday the 27th, with 3ft swell from the WSW, and even stronger offshore winds on the morning of the 28th. It's not going to be a world-class day, but after two weeks of nothing, it's the best we've got. Keep in mind, with that offshore wind, Southerndown can hold a clean line.
So, if you're patient, the very last day of the forecast is your only real shot. For everything else, it's a long, flat, or blown-out stretch.
Stay patient.
- Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 13°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue morning. Very mild (max 19°C on Mon morning, min 14°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the W by Tue morning). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | W 8 | W 7 | WSW 8 | WSW 7 | WSW 7 | W 5 | WSW 7 | WSW 8 | W 7 | WSW 6 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 78 | 74 | 47 | 45 | 33 | 29 | 28 | 19 | 11 | 18 | 5 | 5 | 6 | 38 | 108 | 115 | 161 | 186 | 191 | 96 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | off | glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 7:49PM9.35m | 8:11AM9.09m | 8:30PM9.49m | 8:51AM9.10m | 9:10PM9.36m | 9:30AM8.88m | 9:48PM8.99m | 10:07AM8.48m | 10:25PM8.43m | 10:44AM7.95m | 11:03PM7.76m | 11:22AM7.34m | 11:42PM7.06m | ||||||||
Low Tide | 1:37PM0.36m | 2:03AM0.09m | 2:17PM0.15m | 2:42AM0.02m | 2:55PM0.16m | 3:19AM0.19m | 3:32PM0.39m | 3:54AM0.55m | 4:07PM0.80m | 4:29AM1.07m | 4:44PM1.34m | 5:05AM1.67m | 5:23PM1.95m | ||||||||
 | |  | |  |  | | | | |  | | | | |  |  | | | | | |
 | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — |
 | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — |
Temp °C | 25 | 24 | 20 | 21 | 21 | 19 | 22 | 22 | 16 | 18 | 18 | 17 | 19 | 19 | 18 | 18 | 19 | 18 | 17 | 18 | 16 |
Feels °C | 23 | 21 | 19 | 20 | 20 | 18 | 17 | 15 | 12 | 16 | 15 | 14 | 18 | 16 | 16 | 15 | 17 | 15 | 14 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | W 8 | W 7 | WSW 8 | WSW 7 | W 7 | W 5 | WSW 7 | WSW 8 | W 7 | — | — | W 17 | W 16 | — | WSW 7 |
| kJ | 86 | 78 | 74 | 47 | 45 | 33 | 29 | 28 | 19 | 11 | 9 | 4 | 5 | 6 | 38 | — | — | 6 | 5 | — | 96 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 10 | — | NW 4 | NW 4 | — | WSW 7 | — | — | — | — | — | — | — | — | SW 16 |
| kJ | — | — | — | — | — | — | 2 | — | 2 | 2 | — | 5 | — | — | — | — | — | — | — | — | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | W 4 | — | WNW 3 | — | NW 3 | NW 4 | — | — | WSW 7 | WNW 3 | — | W 4 | — | WSW 6 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | — |
| kJ | — | — | 4 | — | 1 | — | 2 | 10 | — | — | 18 | 2 | — | 1 | — | 108 | 115 | 161 | 186 | 191 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 352 | 30 | 31 | 353 | 30 | 446 | 388 | 196 | 142 | 427 | 466 | 464 | 389 | 401 | 395 | 93 | 6 | 353 | 353 | 470 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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