Surf Forecasts:
Southerndown surf forecast from 11 Sep 2026:
- Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 5ft (1.6m), 7s period, W swell with 254 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.6m 7s and forecast to arrive on Wednesday (Sep 16) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Tuesday (Sep 15) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 16th Sep) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Right then, let's have a look. Southerndown's the only spot on the menu, but the honest truth is there isn't a single decent wave in the entire 16-day window. It’s a flat spell, plain and simple.
We’re looking at a rough patch from now right through to September 26th. Wave heights are tiny, barely scraping 3ft on a good day, and most of the time they're sitting well below that, like the 1.0ft we see around the 17th onwards. The energy is weak, with the combined swell readings struggling into triple digits only a handful of times, and mostly sitting in the pathetic two-digit range, for example a reading of 35 (weak energy) or 181 (moderate). That's not enough to get excited about.
The wind is a real problem too, blowing straight onshore or cross-onshore from the west and southwest nearly all the time, up to 25 mph at times. It’s messy out there. Even when the swell period stretches out to 9 or 10 seconds now and then, it's still blowing a gale. For beginners, the water temperature is a bit of a talking point – it's sitting around 67°F, which is about 6°F warmer than average for this time of year, so it feels more like summer, but that won't save the surf.
There’s a faint glimmer on September 19th and 20th. Saturday morning the 19th we get glassy conditions with a gentle southeast breeze at just 3 mph and a 2ft wave from the west. By the afternoon it goes clean with a light offshore. Then Sunday morning the 20th stays clean with a moderate offshore. But the size is still tiny – 2ft to 3ft – and the energy is weak. It’s not a standout; it’s the least messy option in a long, sad run. Probably more of a bodyboard session than a proper surf.
With such small, wind-affected waves at a fairly exposed beach break, this setup honestly looks more interesting for kite surfing than paddle surfing across most of the period. There's just no quality to recommend pulling on a wetsuit for.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Very mild (max 18°C on Sat morning, min 14°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat night, light winds from the WSW by Sun night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 20°C on Mon morning, min 14°C on Tue night). Winds increasing (light winds from the SSW on Mon night, fresh winds from the WNW by Tue afternoon). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 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) | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 6 | WSW 7 | WSW 7 | W 10 | WSW 9 | WSW 9 | WSW 6 | WSW 6 | W 6 | W 6 | W 8 | W 7 | W 7 | WSW 10 | WSW 10 | WSW 5 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 181 | 140 | 72 | 125 | 156 | 225 | 128 | 179 | 92 | 113 | 43 | 55 | 83 | 120 | 208 | 102 | 57 | 36 | 19 | 49 | 50 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross |
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 | 1:17PM0.31m | 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 | ||||||||
 | |  |  | |  |  | | | | | | | | | | | | | |  | |
 | 6:41 | — | — | 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 | — | — | — | — | — | 11 | — | — | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — |
Temp °C | 17 | 17 | 14 | 18 | 18 | 18 | 17 | 18 | 18 | 20 | 20 | 19 | 16 | 17 | 15 | 14 | 16 | 16 | 17 | 16 | 14 |
Feels °C | 15 | 15 | 12 | 13 | 14 | 15 | 15 | 15 | 19 | 18 | 18 | 20 | 11 | 11 | 11 | 9 | 11 | 11 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 8 | W 8 | — | W 7 | WSW 7 | W 10 | WSW 9 | W 9 | WSW 9 | WSW 6 | W 6 | W 10 | W 8 | W 7 | WSW 9 | WSW 10 | WSW 10 | W 10 | WSW 6 |
| kJ | 181 | 140 | 72 | 48 | — | 206 | 128 | 179 | 92 | 101 | 25 | 55 | 73 | 19 | 208 | 102 | 29 | 36 | 19 | 17 | 50 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 10 | — | — | — | — | WSW 8 | W 11 | — | — | WSW 9 | — | W 10 | — | — | WSW 10 |
| kJ | — | — | — | — | — | — | 33 | — | — | — | — | 14 | 2 | — | — | 48 | — | 33 | — | — | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 8 | WSW 6 | WSW 7 | — | WSW 9 | — | WSW 9 | WSW 6 | — | W 6 | W 6 | — | — | W 7 | W 6 | W 4 | WSW 5 | — |
| kJ | — | — | — | 125 | 156 | 225 | — | 140 | — | 113 | 43 | — | 83 | 120 | — | — | 57 | 15 | 16 | 49 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 30 | 117 | 140 | 306 | 154 | 49 | 359 | 140 | 140 | 140 | 131 | 904 | 1344 | 31 | 31 | 138 | 306 | 337 | 353 | 352 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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