
Surf Forecasts:
Southerndown surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 4AM (local time) - 2.5ft (0.8m), 9s period, WSW swell with glassy winds.
- Most powerful swell: Saturday 12 Sep, 10PM (local time) - 5ft (1.5m), 7s period, WSW swell with 218 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 4AM (local time) - 2.5ft (0.8m), 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 Monday (Sep 14) at 4AM. The primary swell is predicted to be 0.8m 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 1.5m 7s and forecast to arrive on Saturday (Sep 12) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Sep 16) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 14th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 4AM (Mon 14th Sep) | 2.5ft (0.8m) 9s |
| Most Powerful | 10PM (Sat 12th Sep) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up on our little stretch of coast.
Honestly, if you’re looking to paddle out over the next two and a half weeks, you’re going to be fighting a losing battle most days. The prevailing wind just won’t give us a break. We’ve got a long stretch from now right through to the 22nd of September where the conditions are just blown out or messy. There are a few flickers of hope right at the very end, but for the core of the forecast, it’s a write-off.
Let’s start with the first few days. Up until the 22nd, the wind is mostly cross-onshore or onshore, and it’s often fresh to strong. The swell is hanging around, but it’s ugly. Friday the 11th through to Monday the 21st is a real grind. The wave energy is weak to moderate, sitting at 113 (moderate energy) on the Friday, but it gets worse, dropping as low as 25 (weak energy) on the 20th. Every session has that "poor surf conditions" tag. It’s just not worth it.
Now, there is a little moment on Tuesday the 22nd. The morning brings a clean look with a light east-northeasterly cross-offshore wind. The swell is a tiny 2 ft from the west with a 9-second period. The wave energy is weak at 68. It’s "surfable but very ordinary." If you’ve got a longboard and you’re desperate, you could get a couple of small, clean lines, but it’s nothing to write home about. The afternoon goes glassy but the swell drops to 2 ft, so it’s flat, really.
Thursday the 24th morning is another one to keep an eye on. The wind is light and cross-offshore from the east-southeast, giving us clean conditions again. The swell is a bit better, 4 ft from the west with a 7-second period. The combined energy is moderate at 182. It’s still only rated as "surfable but very ordinary," but that clean surface will make it look better than it is. The afternoon cranks up the wave energy to 281 (moderate energy) and the swell hits 4 ft at 9 seconds, but the wind switches onshore from the west-southwest again, so it’ll blow out.
The best bet on offer? That Thursday morning, the 24th of September. Southerndown will have a clean surface and a 4 ft west swell. The wave energy is moderate (182). It’s not a classic, but it’s the closest thing to a decent paddle we’ll see in this entire run. For a beginner, 4 ft is fine, but the 7-second period will make it a bit bumpy and quick. It’s fair to say crowds could be possible here as it’s a fairly consistent spot, but the conditions aren’t so good that the car park will be packed.
Keep the 26th in the back of your mind too. Saturday afternoon shows a glassy window with a 4 ft swell but a very short 6-second period. The wave energy is 154 (moderate), and it’s tagged "surfable." It’s a last-ditch option.
Forget the rest of that mid-period. There’s a lot of chop and strong wind. If you’re a kiter, this setup might look more interesting than it does for a surfer, especially on days with the strong cross-shore winds and moderate swell.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Sat night. Very mild (max 19°C on Mon morning, min 13°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun night). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Tue morning. Very mild (max 19°C on Mon afternoon, min 12°C on Tue night). Winds increasing (light winds from the WSW on Mon afternoon, strong winds from the WSW by Wed night). | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 8 | WSW 8 | WSW 6 | WSW 7 | WSW 7 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 6 | W 7 | W 7 | W 6 | W 7 | WSW 9 | W 10 | WSW 7 | W 7 | W 6 |
Wave Graph | ||||||||||||||||||||
113 | 72 | 125 | 151 | 218 | 86 | 163 | 90 | 108 | 44 | 61 | 89 | 70 | 43 | 107 | 42 | 53 | 186 | 150 | 79 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross-on | on | cross | cross-on | cross-on |
High Tide | 7:28PM9.32m | 7:48AM9.13m | 8:06PM9.42m | 8:24AM9.15m | 8:41PM9.27m | 8:59AM8.95m | 9:16PM8.90m | 9:32AM8.57m | 9:49PM8.36m | 10:05AM8.05m | 10:23PM7.72m | 10:39AM7.43m | 10:59PM7.03m | |||||||
Low Tide | 1:40AM0.07m | 1:53PM0.11m | 2:13AM0.04m | 2:26PM0.13m | 2:45AM0.22m | 2:58PM0.36m | 3:16AM0.58m | 3:30PM0.76m | 3:47AM1.08m | 4:03PM1.29m | 4:19AM1.68m | 4:39PM1.92m | ||||||||
— | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | |
7:38 | — | — | 7:37 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:27 | — | — | 7:24 | — | |
mm | — | — | — | — | 10 | — | — | — | — | — | 1 | 3 | — | — | — | — | 4 | — | 1 | 1 |
Temp °C | 16 | 14 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 18 | 17 | 17 | 15 | 14 | 15 | 16 | 15 | 15 | 14 |
Feels °C | 13 | 13 | 13 | 13 | 16 | 17 | 16 | 19 | 20 | 18 | 17 | 12 | 11 | 11 | 9 | 8 | 9 | 9 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 8 | — | — | W 7 | WSW 7 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | W 7 | WSW 8 | W 6 | W 7 | WSW 9 | W 10 | W 10 | — | WSW 9 |
113 | 72 | — | — | 212 | 86 | 163 | 90 | 108 | 44 | 14 | 89 | 14 | 43 | 92 | 42 | 53 | 2 | — | 28 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 10 | — | — | — | — | WSW 8 | W 11 | WSW 11 | WSW 8 | — | — | — | — | — | W 9 |
— | — | — | — | — | 51 | — | — | — | — | 23 | 2 | 11 | 22 | — | — | — | — | — | 40 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | WSW 8 | WSW 6 | WSW 7 | — | — | — | — | WSW 5 | WSW 6 | — | W 7 | NW 3 | W 7 | W 6 | W 5 | WSW 7 | W 7 | W 6 |
— | — | 125 | 151 | 218 | — | — | — | — | 32 | 61 | — | 70 | 2 | 107 | 39 | 47 | 186 | 150 | 79 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 117 | 154 | 306 | 353 | 31 | 93 | 51 | 140 | 140 | 128 | 138 | 409 | 138 | 39 | 306 | 577 | 887 | 416 | 577 |
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.










