Surf Forecasts:
Southerndown surf forecast from 13 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 10PM (local time) - 5.5ft (1.7m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 7ft (2.2m), 8s period, WSW swell with 660 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 4AM (local time) - 2ft (0.6m), 8s period with W swell.
Best Forecast Surf Conditions for Southerndown this week:
The surf forecast for Southerndown over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 4AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Southerndown in the next 16 days are 2.2m 8s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Aug 15) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 15th Aug) | 2ft (0.6m) 8s |
| Best Surf | 10PM (Wed 19th Aug) | 5.5ft (1.7m) 8s |
| Most Powerful | 4PM (Wed 19th Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s be straight with you – this Southerndown stretch is looking like a write-off for the next two and a half weeks. The swell windows just aren’t lining up with clean conditions, and when they do, it’s tiny or blown out.
We kick off on Thursday the 13th with a tiny 2ft WSW groundswell, period a decent 10 seconds, giving us weak wave energy (86). But the wind is a messy light cross-shore from the SE, so the surface is all ripples and poor. That’s the story for the next several days: a mix of light to moderate onshore and cross-onshore winds, with swell barely cracking 3ft. No scores.
There’s a long, frustrating gap here. You’ll get some clean windows early on, like Saturday the 15th morning – a tiny 1ft with a light cross-offshore wind, clean faces – but it’s just too small to paddle. Sunday the 16th morning is glassy with 1ft. It’s pretty, but it’s not surfable.
Things try to pick up around Wednesday the 19th August. We see a solid lift in swell to 7ft from the WSW, period 8 seconds, with moderate wave energy (507). But that’s blown out by a stiffer cross-shore wind, and the short period makes it crumbly and messy. Over 8ft it’s expert-only, and this is getting close, but the quality is so poor it’s not worth it.
Thursday the 20th morning is your only real glimmer in the first week – 4ft from the W, period 7 seconds, moderate energy (207), but with a clean cross-offshore wind from the NNW. The face will be clean. The downside is the short period makes for weak, closing-out waves on a beach break like this. For a kiter or windsurfer, this setup actually looks more interesting than paddle surfing.
After that, we slump back into tiny, weak swell for nearly a week, barely hitting 1ft with some cleanish but empty morning windows. Then on Thursday the 27th, a stormy pulse arrives: 3ft to 4ft from the WSW, period 7 seconds, moderate to strong energy (117–193). But it’s getting hammered by fresh onshore and cross-onshore winds, and there’s risk of thunderstorms and rain showing. It’s a lumpy, choppy nightmare.
Honestly, mate, the whole 16-day window is a total blank. Not one day gets a recommendation. When that happens around here, it’s a tough stretch, but the coast can flick a switch. For now though? Save the wax. That’s all I’ve got. – Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed night, min 15°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the WSW by Mon afternoon). | ||||||||||||||||||||
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 | WSW 8 | W 7 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 7 | WSW 4 | W 7 | WSW 7 | WSW 6 | WSW 6 | WSW 8 | WSW 8 | W 8 |
Wave Graph | |||||||||||||||||||||
86 | 114 | 74 | 47 | 45 | 46 | 19 | 28 | 19 | 11 | 10 | 5 | 4 | 11 | 110 | 75 | 43 | 95 | 507 | 660 | 229 | |
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 | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off |
High Tide | 7:29AM8.86m | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 20 | 21 | 21 | 20 | 22 | 23 | 17 | 19 | 22 | 18 | 17 | 18 | 18 | 19 | 20 | 19 | 19 | 20 | 16 |
Feels °C | 23 | 22 | 20 | 20 | 20 | 19 | 19 | 18 | 14 | 16 | 18 | 14 | 14 | 15 | 15 | 18 | 18 | 16 | 14 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | W 7 | WSW 8 | WSW 7 | WSW 7 | W 5 | W 7 | W 8 | — | WSW 7 | WSW 6 | — | — | — | WSW 11 |
86 | 114 | 74 | 47 | 45 | 46 | 19 | 28 | 19 | 11 | 10 | 2 | 4 | 5 | — | 75 | 43 | — | — | — | 164 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 4 | NW 4 | — | WSW 7 | — | — | — | — | W 17 | — | — | — | — |
— | — | — | — | — | — | — | — | 2 | 2 | — | 5 | — | — | — | — | 6 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 10 | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | W 4 | — | WNW 2 | — | NNW 4 | NW 3 | — | — | — | — | — | WSW 4 | W 7 | — | W 6 | WSW 6 | WSW 8 | WSW 8 | W 8 |
— | — | 4 | — | 1 | — | 1 | 5 | — | — | — | — | — | 11 | 110 | — | 41 | 95 | 507 | 660 | 229 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 352 | 30 | 49 | 140 | 30 | 416 | 362 | 353 | 400 | 454 | 427 | 461 | 360 | 165 | 101 | 306 | 352 | 31 | 39 | 0 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.











