Surf Forecasts:
Southerndown surf forecast from 30 Aug 2026:
- Most powerful swell: Friday 4 Sep, 1PM (local time) - 8ft (2.4m), 8s period, W swell with 839 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 2.4m 8s and forecast to arrive on Friday (Sep 04) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Fri 4th Sep) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Right, let’s have a look at what’s cookin’ over the next couple of weeks. Southerndown is the only spot in the mix, and honestly, it’s a tough stretch. The whole 16-day window is a bit of a bust – there’s no real standout, no session you’d mark on the calendar. We’ve got a long gap of poor surf right from the start.
The water temperature is sittin’ at 69°, which is a massive 8° warmer than usual for this time of year. That’s very unusual, feels more like a bathtub than the Atlantic, but it won’t help the waves any.
Sunday 30th August kicks things off with a 4ft WSW swell, but it’s a short period 9 second job, and the wind is howling onshore from the SW at 15 mph. The combined swell energy is 344 (moderate), but the conditions are just poor. The afternoon gets worse with a 5ft stormy 6 second swell and a risk of thunderstorms. This is a write-off.
Monday 31st August pushes up a bit of size – 6ft from the W, period at 9 seconds, energy at 505 (moderate). But the wind is a fresh cross-shore from the WNW at 19 mph, leaving lumpy, messy waves. Not your friend.
Tuesday 1st September drops right back. 3ft, still poor, with onshore wind and rain showers. The week stays crook.
Wednesday 2nd sees some size return – 5ft to 6ft from the WSW, period stuck at 6-7 seconds, but the wind is onshore and up to 22 mph. That’s a messy, blown-out combo. The energy climbs to 334 (moderate), but it’s ugly.
Thursday 3rd is more of the same – 4ft, short period, cross-onshore wind. Energy sits at 372, but no quality.
Friday 4th September is the biggest of the whole window – 8ft from the W, 8 second period. Energy hits 792 (strong to very strong). But the wind is a strong cross-onshore at 25 mph. That’s a washing machine. Southerndown is fairly exposed to SW swell, but with these winds, it’s a mess. Honestly, for a beach break, this setup looks more interesting for kite surfing than paddle surfing.
Saturday 5th September finally eases up. The morning sees 4ft from the W, 7 second period, with a light cross-shore breeze from the NW at 6 mph. The energy is 272 (moderate), and the comment says “marginal.” It’s the only time in the first week that’s even borderline worth a look, but it’s small and short-period.
From Sunday 6th September all the way through to Monday 14th September, the surf drops away to virtually nothing. Heights hover between 0.7ft and 2ft. The winds get clean and even offshore a few times – like on Thursday 10th September with glass, and Saturday 12th September with glassy conditions – but there’s just no swell to ride. The energy values drop to as low as 7 (weak). It’s a flat spell that lasts over a week.
So there you have it. No good options. If you’re desperate, the early morning of Saturday 5th September is the only window where you might get a knee-high dribble with a bit of shape. Otherwise, the board stays in the car. It tends not to stay this poor for long, but this run is a real quiet one.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun afternoon. Very mild (max 19°C on Sun morning, min 15°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, light winds from the WSW by Mon night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Thu night. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the W on Fri afternoon, moderate winds from the NW by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 | WSW 6 | WSW 8 | W 9 | WSW 9 | WSW 10 | W 9 | WSW 9 | WSW 5 | WSW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | W 8 | W 8 | W 7 | WSW 6 | W 6 |
Wave Graph | |||||||||||||||||||||
186 | 141 | 379 | 505 | 418 | 193 | 106 | 101 | 30 | 191 | 334 | 277 | 191 | 202 | 308 | 792 | 754 | 294 | 131 | 53 | 20 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | glassy |
High Tide | 8:45PM9.12m | 9:03AM8.89m | 9:20PM9.04m | 9:38AM8.75m | 9:57PM8.76m | 10:17AM8.41m | 10:38PM8.28m | 11:00AM7.92m | 11:25PM7.66m | 11:52AM7.32m | 00:25AM7.00m | 1:01PM6.77m | 1:47AM6.53m | ||||||||
Low Tide | 2:29PM0.35m | 2:48AM0.29m | 3:00PM0.35m | 3:19AM0.40m | 3:33PM0.53m | 3:54AM0.69m | 4:10PM0.88m | 4:33AM1.15m | 4:54PM1.40m | 5:20AM1.75m | 5:49PM2.00m | 6:24AM2.36m | 7:09PM2.53m | ||||||||
6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | |
— | 8:06 | — | — | 8:04 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | |
mm | 2 | 7 | 7 | — | — | — | 1 | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — |
Temp °C | 19 | 17 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 14 |
Feels °C | 15 | 13 | 10 | 10 | 11 | 13 | 13 | 13 | 15 | 13 | 14 | 14 | 15 | 14 | 12 | 10 | 10 | 11 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | — | — | — | — | WSW 10 | W 9 | — | WSW 8 | — | — | — | W 8 | W 16 | W 13 | — | — | WSW 11 | W 7 | WSW 10 | W 6 |
158 | — | — | — | — | 193 | 99 | — | 12 | — | — | — | 177 | 5 | 14 | — | — | 43 | 114 | 10 | 20 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 15 | — | — | — | — | — | WSW 11 | W 14 | WSW 9 |
— | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | 23 | 4 | 9 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | — | W 13 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | 3 | |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 6 | WSW 8 | W 9 | WSW 9 | — | WSW 9 | WSW 9 | WSW 5 | WSW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | W 8 | W 8 | W 7 | WSW 6 | — |
186 | 141 | 379 | 505 | 418 | — | 106 | 101 | 30 | 191 | 334 | 277 | 191 | 202 | 308 | 792 | 754 | 294 | 131 | 53 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 246 | 331 | 81 | 101 | 81 | 72 | 138 | 190 | 140 | 306 | 406 | 306 | 140 | 140 | 292 | 352 | 353 | 138 | 6 | 196 | 43 |
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.











