
Surf Forecasts:
Southerndown surf forecast from 7 Sep 2026:
- Best quality surf: Friday 11 Sep, 10PM (local time) - 2.5ft (0.7m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 5.5ft (1.7m), 12s period, WSW swell with 784 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 10PM (local time) - 2.5ft (0.7m), 8s 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 Friday (Sep 11) at 10PM. The primary swell is predicted to be 0.7m and 8s period. 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 1.7m 12s and forecast to arrive on Tuesday (Sep 08) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Wednesday (Sep 09) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 11th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 10PM (Fri 11th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 1AM (Tue 8th Sep) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s be straight with you on this one. For the next 16 days, we’re looking at a really tough stretch at Southerndown. The data is honest: this is a long, quiet run with nothing that’s going to get the heart pumping. Most of the period is a write-off, but there’s a tiny, late flicker of hope right at the very end.
The first proper surfable window doesn’t show up until Sunday afternoon, the 20th of September. That’s over a week of flat, blown-out, or just plain messy conditions to get through first. The wait is a long one.
Let’s walk through it. The first week is a real grind. From Monday the 7th to Saturday the 19th, every single report is flagged as “poor surf conditions.” The wind is nearly always cross or cross-on, and often fresh to strong, creating a lumpy, choppy mess. The swell is small and weak, with combined energy readings mostly under 200 (moderate at best), and the period is short, usually under 9 seconds, meaning weak, crumbly waves. The water temperature is a notable 67°F with a massive anomaly of 6°F warmer than normal, which is very unusual for the time of year, but it doesn’t help the surf.
The only standout, and I mean the only one, arrives on Sunday afternoon, the 20th of September. The forecast finally shows a glimmer of something clean. We get a 2ft swell from the WSW, with a period of 11 seconds. That’s a decent groundswell, which will offer some shape and energy. The wind is light and cross-off from the ESE at just 3 mph, which is about as good as it gets for clean conditions. The combined energy is 152, which is still moderate, but it’s the only window where the surf is described as “surfable waves but very ordinary conditions.” For this bleak outlook, that’s the best we’ve got.
After that, Monday and Tuesday the 22nd of September offer clean conditions with offshore winds, but the swell is tiny – 1ft and 0.7ft – with combined energy dropping to 36 and 9. That’s basically flat. The wind is clean, but there’s nothing to ride.
So, the honest truth is, if you’re desperate for a paddle, your only real shot is Sunday afternoon the 20th. It’s not going to be epic, but it’ll be clean and small. For the rest of the 16 days, save your energy. The break is fairly consistent, so the forecast could change, but right now, it’s a waiting game. Keep an eye on it, but don’t hold your breath.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Very mild (max 17°C on Mon morning, min 13°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue afternoon, light winds from the W by Wed night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Sat afternoon. Very mild (max 18°C on Thu afternoon, min 12°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the WSW by Sat night). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 14 | WSW 13 | WSW 12 | WSW 9 | W 9 | W 7 | W 8 | WSW 8 | WSW 8 | WSW 8 | WSW 5 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 5 | WSW 7 | WSW 8 | WSW 8 | WSW 9 |
Wave Graph | |||||||||||||||||||||
633 | 643 | 784 | 275 | 325 | 173 | 134 | 87 | 50 | 32 | 33 | 191 | 164 | 125 | 50 | 45 | 44 | 186 | 143 | 102 | 88 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | on | cross | cross | cross-off | on | cross-on | on | cross-on | cross-on | on |
High Tide | 4:04PM6.95m | 4:43AM7.10m | 5:11PM7.65m | 5:41AM7.78m | 6:04PM8.38m | 6:29AM8.41m | 6:48PM8.96m | 7:10AM8.88m | 7:28PM9.32m | 7:48AM9.13m | 8:06PM9.42m | 8:24AM9.15m | 8:41PM9.27m | ||||||||
Low Tide | 10:31PM2.15m | 11:01AM1.98m | 11:35PM1.47m | 11:55AM1.31m | 00:23AM0.82m | 12:39PM0.72m | 1:04AM0.34m | 1:17PM0.31m | 1:40AM0.07m | 1:53PM0.11m | 2:13AM0.04m | 2:26PM0.13m | 2:45AM0.22m | ||||||||
6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | |
— | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:34 | — | |
mm | — | — | 14 | 5 | — | — | — | — | — | — | — | 4 | — | — | — | — | 3 | 3 | — | — | — |
Temp °C | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 14 | 17 | 18 | 17 | 18 | 18 | 14 | 16 | 16 | 18 | 18 | 17 | 16 |
Feels °C | 12 | 12 | 12 | 10 | 8 | 10 | 12 | 11 | 11 | 13 | 13 | 16 | 16 | 15 | 12 | 12 | 11 | 14 | 14 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | — | WSW 12 | WSW 9 | — | — | W 8 | WSW 8 | WSW 8 | W 12 | WSW 7 | W 7 | WSW 8 | WSW 8 | WSW 8 | W 16 | WSW 8 | W 7 | WSW 8 | WSW 8 | W 9 |
633 | — | 183 | 275 | — | — | 134 | 87 | 50 | 3 | 11 | 171 | 164 | 125 | 50 | 5 | 21 | 173 | 143 | 102 | 78 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 10 | — | — | — | — | W 13 | W 12 | W 11 | W 10 | — | — | — | W 16 | W 15 | — | — | — | — |
— | — | — | 62 | — | — | — | — | 3 | 3 | 2 | 18 | — | — | — | 5 | 4 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WSW 13 | WSW 12 | — | W 9 | W 7 | — | W 7 | — | WSW 8 | WSW 5 | WSW 7 | — | — | — | WSW 8 | WSW 5 | WSW 7 | — | — | WSW 9 |
— | 643 | 784 | — | 325 | 173 | — | 43 | — | 32 | 33 | 191 | — | — | — | 45 | 44 | 186 | — | — | 88 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 136 | 136 | 31 | 889 | 138 | 30 | 155 | 23 | 190 | 354 | 154 | 19 | 30 | 13 | 54 | 140 | 306 | 347 | 353 | 51 |
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.










