Surf Forecasts:
Southerndown surf forecast from 30 Aug 2026:
- Best quality surf: Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 6ft (1.9m), 9s period, WSW swell with 547 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 10s 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 Saturday (Sep 05) at 10PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.1m and 13s. 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 1.9m 9s and forecast to arrive on Monday (Aug 31) at 4AM. 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+) | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Best Surf | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Most Powerful | 4AM (Mon 31st Aug) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, the way things are lookin', it's a tough stretch ahead for Southerndown. Honestly, for the next two weeks, the surf is pretty much non-existent for a decent paddle. There's a real dry spell, with nothing worth paddling out for until over a week from now.
Right out of the gate, Sunday the 30th is a write-off. We've got a weak 4ft swell from the WSW at 9 seconds, but it's pinned by a strong onshore SSW wind at 16 mph. The water's much warmer than normal at 69°, but you won't care because the conditions are poor. Combined energy is a weak 186.
That same story plays out through to the end of the first week of September. The swell tries to build – we see 6ft on Monday the 31st with moderate energy (466), and a 6ft on Friday the 4th (376) – but it’s all blown out by onshore cross-shore winds from the WNW and W at 16 mph. The wave comment for every single one of these days is "poor surf conditions."
Things go flat after that. The 6th and 7th of September have some lovely glassy and clean winds, but there's barely a ripple, with swell heights dropping to 1ft to 2ft. Combined energy is lower than 30.
The first real sign of hope doesn't come until Saturday the 12th of September. The morning is looking glassy with a light SSW wind, and the swell is a modest 3ft from the WSW at 7 seconds. The combined energy is still low at 81, and the wave comment is just "surfable waves but very ordinary conditions." It's the only spot in the entire 16-day window that gets a score above zero, but it's barely a heartbeat. For a beginner-friendly spot like Southerndown, it's just something to wet your line, not get excited about.
The following few days after that, the swell disappears again entirely, with the 14th showing a tiny 0.3ft swell from the SW with a very long period of 13 seconds, but zero energy behind it.
Honestly, mate, for a place that's fairly consistent, this is a shocking run. It’s just not the season for it. The best advice I can give is to leave the board in the car and maybe bring a kite if the wind is strong; a few of those days with onshore wind and 5ft+ swell would be more interesting for that than for a paddle.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun afternoon. Very mild (max 18°C on Wed morning, min 15°C on Sun night). Winds decreasing (fresh winds from the SW on Sun night, light winds from the W by Mon night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed afternoon. Warm (max 20°C on Thu night, min 12°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, light winds from the NW by Fri night). | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 8 | WSW 8 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | W 8 | WSW 7 | W 8 | W 7 | W 7 | W 6 | WSW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 222 | 402 | 466 | 481 | 193 | 27 | 79 | 49 | 90 | 265 | 256 | 215 | 196 | 164 | 440 | 286 | 159 | 89 | 49 | 52 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross-on | cross-off |
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 | 2:48AM0.29m | 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 | ||||||||
 |  |  |  |  | | | |  |  |  | |  |  | | |  | | | | |
 | — | — | 6:24 | — | — | 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 | 11 | 8 | — | — | — | — | — | — | 1 | 1 | 2 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 19 | 18 | 18 | 18 | 20 | 17 | 17 | 17 | 16 | 16 | 15 |
Feels °C | 13 | 11 | 12 | 11 | 13 | 13 | 13 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 12 | 10 | 13 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | WSW 10 | WSW 9 | — | — | — | — | — | W 15 | W 15 | W 8 | — | — | — | W 7 | WSW 10 | WSW 10 |
| kJ | — | — | — | — | 193 | 26 | — | — | — | — | — | 4 | 5 | 164 | — | — | — | 89 | 19 | 52 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 9 | WSW 10 | — | WSW 6 | WSW 9 | WSW 8 | WSW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 6 | WSW 7 | W 8 | W 7 | W 6 | W 6 | — |
| kJ | 222 | 402 | 466 | 481 | — | 27 | 79 | 49 | 90 | 265 | 256 | 215 | 196 | 151 | 440 | 286 | 159 | 84 | 49 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 460 | 81 | 353 | 81 | 31 | 117 | 190 | 107 | 406 | 292 | 190 | 406 | 140 | 302 | 353 | 307 | 347 | 135 | 79 | 9 |
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.
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