Surf Forecasts:
Southerndown surf forecast from 1 Sep 2026:
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 4.5ft (1.3m), 12s period, WSW swell with 437 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.3m 12s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 7th Sep) | 4.5ft (1.3m) 12s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it for the local stretch. We’ve got a long 16-day window, and I’m not gonna lie to you – it’s a tough one. The whole period is pretty bleak, so settle in.
Right off the bat, from September 1st through the 14th, it’s a write-off. You’re looking at over a week and a half of poor conditions. The swell is tiny, mostly cross-onshore or onshore winds, and the water is messy. Honestly, the first real sniff of anything surfable doesn’t show up until September 15th.
The best of a bad bunch rolls in on Tuesday morning, September 15th at Southerndown. We’re not talking about a classic, but it’s the only thing on the menu. The water temp is a notable 68°, which is a massive 7° warmer than usual for this time of year – that’s way out of the ordinary, so the wetsuit might feel a bit different.
We’ve got a tiny 2 ft swell sneaking in from the WSW. The period is a clean 11 seconds, which is decent, giving the waves a bit of shape, but the energy is weak – only a combined energy of 73 (weak). The real star here is the wind. It’s glassy, with a light WNW breeze, clean as a whistle. On a normal day, this would be a dream, but with such small waves, it’s just a glassy ankle-snapper. It’s firmly in the beginner zone, and the crowds are “sometimes,” so you might have it to yourself. It’s a place to get wet and enjoy the peace rather than anything substantial.
For the rest of the 16 days, it’s a no-go. The swell is too small, the wind is either onshore or cross-shore, and it’s consistently choppy or lumpy. If you’re a kite surfer, the stronger winds in the middle of the period (like September 9th blowing 25 mph) might look more interesting than paddle surfing. But for us wave riders, it’s a long, dry spell. As always, things can change, but for now, it’s a waiting game.
Stay patient.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Very mild (max 19°C on Wed afternoon, min 16°C on Tue night). Winds increasing (light winds from the SW on Tue night, fresh winds from the WSW by Thu night). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Warm (max 22°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 4 | WSW 5 | WSW 5 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 12 | WSW 11 | WSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 28 | 31 | 22 | 23 | 155 | 177 | 223 | 231 | 165 | 268 | 173 | 126 | 82 | 65 | 46 | 27 | 7 | 27 | 437 | 319 | 269 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | on | on | cross-on | on | cross | cross-on | cross | cross-on | cross-on | glassy | cross-off | cross-on | on | cross-on | cross-on | cross |
High Tide | 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 | 2:33PM6.57m | 3:24AM6.57m | 4:04PM6.95m | |||||||||
Low Tide | 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 | 7:57AM2.74m | 8:57PM2.62m | 9:43AM2.57m | 10:31PM2.15m | ||||||||
 | |  |  | |  | |  | | | |  | | | | |  | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — |
mm | — | — | — | 2 | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 19 | 18 | 19 | 19 | 19 | 17 | 17 | 16 | 15 | 15 | 14 | 20 | 22 | 18 | 17 | 18 | 16 |
Feels °C | 14 | 13 | 14 | 14 | 16 | 14 | 15 | 15 | 15 | 15 | 12 | 12 | 12 | 12 | 13 | 17 | 18 | 15 | 15 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | — | WSW 8 | WSW 5 | — | W 8 | W 15 | — | W 15 | SW 15 | SW 14 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 6 | WSW 8 | WSW 12 | WSW 11 | — |
| kJ | 26 | — | 12 | 23 | — | 138 | 4 | — | 5 | 8 | 8 | 126 | 82 | 65 | 46 | 27 | 7 | 27 | 437 | 319 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 8 | — | — | — | — | — | — | — | SW 14 | SW 14 | W 14 | — | — | WSW 9 | — | — | — | — |
| kJ | — | — | — | 5 | — | — | — | — | — | — | — | 8 | 8 | 4 | — | — | 7 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 4 | WSW 5 | — | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 7 | WSW 8 | — | — | — | — | SE 3 | SE 3 | — | — | — | WSW 10 |
| kJ | 28 | 31 | 22 | — | 155 | 177 | 223 | 231 | 165 | 268 | 173 | — | — | — | — | 2 | 2 | — | — | — | 269 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 138 | 190 | 128 | 306 | 456 | 154 | 140 | 406 | 255 | 30 | 79 | 6 | 30 | 49 | 12 | 56 | 169 | 101 | 79 | 81 | 27 |
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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