
Surf Forecasts:
Southerndown surf forecast from 11 Aug 2026:
- Best quality surf: Thursday 13 Aug, 4AM (local time) - 2.5ft (0.7m), 9s period, WSW swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 7PM (local time) - 3.5ft (1.1m), 10s period, WSW swell with 250 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 4AM (local time) - 2.5ft (0.7m), 9s period with WSW 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 Thursday (Aug 13) at 4AM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Southerndown in the next 16 days are 1.1m 10s and forecast to arrive on Thursday (Aug 13) at 7PM. 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 Friday (Aug 14) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 13th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 4AM (Thu 13th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 7PM (Thu 13th Aug) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, it’s Rusty here. Let’s talk about the next couple weeks of surf, and I’ll be honest with you, it looks pretty slow to start. We’ve got a long stretch of flatness and weak waves before anything with any real size shows up, and that comes with a catch.
The first few days are a total write-off. Tuesday the 11th, there’s nothing but a clean little 0.2m ripple on the morning, with almost no energy behind it (9). The water is a warm 69°, which is well above normal for this time of year, so that’s something. Wednesday and Thursday stay weak, with the swell just slowly climbing to 0.7m, but the winds are cross-shore, making it a bit lumpy. There’s a bit more energy on Thursday arvo (167), but it’s still not doing anything for me.
We get some cleaner windows on Friday morning the 14th and Saturday morning the 15th, with some offshore flow keeping the surface tidy. But the swell is still just a foot or two (0.6m), weak and lacking any punch. It’s fine for a learner or a longboard, but don’t expect any power. Then we go back to almost nothing for a few days. The 16th is glassy with a 0.3m dribble, and the 17th and 18th are similar, with the odd clean 0.6m if the wind is right. It’s a patience game.
The second week isn't much better, size-wise, until we see a big increase on the 23rd, but the wind is on it. Sunday the 23rd brings some size, with 1.0m in the morning and 1.6m in the afternoon, but it’s cross-on and lumpy. Not the clean conditions we’re looking for.
Then we get to Monday the 24th of August. This is where the ocean gets angry. A solid swell is pumping, with the morning seeing 2.5m faces and brutal onshore winds at 45 km/h. The energy is massive (1384), but the quality is zero. Southerndown is a fairly exposed beach, and with that strong onshore wind, it’s going to be a complete mess—a blown-out, choppy disaster. The swell direction is WSW, and the period is around 10 seconds, but it won’t matter with that wind. This is expert territory, and even then, it will be more of a survival mission than a fun surf. It might be more interesting for the kite-surfers to be honest. It backs down a bit on the 25th, but it’s still over 1.8m with a strong breeze, so it stays lumpy and messy.
So, the long and short of it is: there is no true standout session in this run. The best bet for clean waves is the small stuff early on, but it’s tiny. The big swell at the end is just a windy, blown-out mess. If you’re itchy, the morning of the 15th has a clean 0.6m with a light offshore. The 23rd has the most size, but the wind will ruin it for everyone.
Keep an eye on the charts, but don’t get your hopes up for a classic. The water is warm, which is nice. I’d say sit tight, and wait for the wind to ease off.
Catch you later.
Rusty
Short Range ForecastMostly dry. Warm (max 33°C on Wed afternoon, min 17°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the W by Thu afternoon). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun afternoon. Warm (max 22°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 8 | W 10 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | W 9 | W 6 | W 8 | W 7 | WSW 8 | WSW 7 | WSW 7 | W 5 | WSW 7 | W 7 | WSW 8 |
Wave Graph | |||||||||||||||||||||
5 | 2 | 13 | 40 | 54 | 65 | 85 | 167 | 74 | 64 | 125 | 25 | 44 | 27 | 11 | 11 | 5 | 5 | 5 | 62 | 65 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | cross-off | glassy | cross-on | glassy | off | cross-off | off |
High Tide | 6:15PM8.35m | 6:42AM8.41m | 7:05PM8.95m | 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 | ||||||||
Low Tide | 12:02PM1.34m | 00:33AM0.90m | 12:53PM0.78m | 1:21AM0.39m | 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 | ||||||||
5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | |
— | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 24 | 27 | 23 | 28 | 33 | 26 | 27 | 25 | 19 | 21 | 22 | 17 | 20 | 21 | 17 | 19 | 19 | 15 | 17 | 18 | 16 |
Feels °C | 22 | 24 | 22 | 24 | 29 | 24 | 23 | 20 | 18 | 18 | 19 | 13 | 16 | 16 | 14 | 17 | 16 | 14 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 8 | SW 6 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | — | WSW 10 | WSW 9 | — | W 6 | W 8 | W 7 | WNW 4 | WSW 7 | WSW 7 | WSW 7 | WSW 4 | — | WSW 8 |
5 | 2 | 13 | 40 | 54 | 65 | 85 | — | 74 | 64 | — | 25 | 44 | 27 | 6 | 11 | 5 | 5 | 3 | — | 65 | |
Swell 2 Height (m) Direction Period (s) | SW 6 | W 6 | W 5 | — | — | — | — | — | — | — | — | WSW 8 | — | — | WSW 8 | — | — | W 7 | WSW 7 | — | — |
2 | 1 | 1 | — | — | — | — | — | — | — | — | 22 | — | — | 11 | — | — | 4 | 5 | — | — | |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — |
2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 10 | WSW 4 | — | W 9 | — | — | WNW 3 | — | — | W 5 | W 5 | — | W 7 | — |
— | — | — | — | — | — | — | 167 | 5 | — | 125 | — | — | 3 | — | — | 2 | 4 | — | 62 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 334 | 456 | 50 | 12 | 43 | 10 | 31 | 353 | 30 | 31 | 127 | 30 | 43 | 196 | 43 | 195 | 463 | 347 | 50 | 10 | 9 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











