Surf Forecasts:
Southerndown surf forecast from 25 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 7.5ft (2.3m), 9s period, WSW swell with 826 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 2.3m 9s and forecast to arrive on Tuesday (Sep 01) at 1PM. 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 Tuesday (Aug 25) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Tue 1st Sep) | 7.5ft (2.3m) 9s |
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 on the table for the next couple of weeks up at Southerndown.
Honestly, mate, it’s a grim picture. If you’re sitting on your board waiting for that one clean set, you’re going to be waiting a long time. We’ve got a solid stretch of poor surf quality and not much to get excited about. The water is a very unusual 68.4°F right now, much warmer than normal for this time of year, but that’s about the only warm thing in this forecast.
The first real chance of anything rideable doesn’t show up until August 28th, and even then it’s a struggle. On Friday, August 28th, you’ll see a weak 0.8 ft swell from the SW pushing in with a light offshore wind in the morning. The energy is minimal, just 78 weak units. It’s surfable for a beginner, but it’s not going to set the world on fire.
Through the end of August and into early September, the swell picks up a bit, but the wind is a nightmare. August 29th sees a 5.6 ft to 6.2 ft SW groundswell, but it’s hammered by a fresh cross-onshore wind at 19 to 22 mph. That’s lumpy, messy, and honestly, it’s more of a kite session than a paddle session. The combined energy jumps into the moderate range at 234 to 376, but it’s all blown out.
We get a brief flicker of hope on September 7th, Monday morning. There’s a 5.6 ft swell pushing from the WSW, and the wind shifts to a fresh offshore from the NE at 19 mph. That’s clean, and a 5.6 ft wave on a beach setup with offshore wind is a fun wave for the crew that’s been waiting. The energy is strong at 655 units, but it’s still a marginal call according to the tide or conditions, so don't expect perfection. It’s the best-looking window in the whole run, if you can make it.
All up, there’s a long, quiet spell from now until August 28th. Then we get a few messy days of decent sized swell but terrible wind, before that one clean window on September 7th. Keep your eye on the forecasts, because things can change, but for now, I’d be planning for that Monday morning session and forgetting the rest.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Warm (max 26°C on Tue afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the E on Tue morning, light winds from the ENE by Wed night). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Fri night. Warm (max 20°C on Fri morning, min 14°C on Sun night). Winds increasing (light winds from the WNW on Fri morning, strong winds from the NW by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | W 13 | W 10 | W 10 | WSW 9 | W 8 | WSW 8 | WSW 7 | SW 4 | WSW 7 | SW 8 | SW 8 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | W 9 | WSW 7 | W 8 | WSW 8 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 8 | 8 | 12 | 6 | 5 | 5 | 48 | 57 | 28 | 35 | 234 | 376 | 422 | 243 | 158 | 261 | 428 | 266 | 178 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:53PM7.08m | 6:13AM7.20m | 6:31PM7.70m | 6:49AM7.76m | 7:05PM8.26m | 7:22AM8.24m | 7:38PM8.71m | 7:55AM8.61m | 8:11PM9.00m | 8:29AM8.84m | 8:45PM9.12m | 9:03AM8.89m | 9:20PM9.04m | ||||||||
Low Tide | 11:43AM2.36m | 00:08AM2.02m | 12:22PM1.78m | 00:45AM1.45m | 12:57PM1.25m | 1:17AM0.97m | 1:28PM0.82m | 1:48AM0.59m | 1:59PM0.51m | 2:18AM0.36m | 2:29PM0.35m | 2:48AM0.29m | 3:00PM0.35m | 3:19AM0.40m | |||||||
 | |  | | |  |  | | | | | |  | | | | | |  | | | |
 | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — |
mm | — | — | — | — | — | 2 | 2 | — | — | — | — | 5 | 1 | — | — | — | 4 | 4 | — | 1 | — |
Temp °C | 23 | 26 | 20 | 20 | 24 | 19 | 20 | 19 | 17 | 20 | 19 | 17 | 19 | 19 | 17 | 20 | 19 | 16 | 16 | 17 | 17 |
Feels °C | 19 | 22 | 19 | 20 | 22 | 19 | 18 | 14 | 17 | 19 | 17 | 15 | 13 | 14 | 12 | 17 | 15 | 10 | 8 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 10 | WSW 9 | W 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | SW 8 | W 8 | — | — | — | WSW 9 | W 9 | — | W 8 | — | W 8 |
| kJ | 1 | 1 | 8 | 8 | 12 | 6 | 5 | 5 | 48 | 20 | 28 | 1 | — | — | — | 243 | 158 | — | 428 | — | 149 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 10 | SW 8 | SW 8 | S 8 | — | — | — | W 7 | W 8 | W 8 | SW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 2 | 3 | 2 | 1 | — | — | — | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | SSE 3 | — | — | — | — | SW 4 | — | SW 8 | WSW 4 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | — | WSW 8 | WSW 7 | WSW 8 | WSW 8 | WSW 7 |
| kJ | 4 | 1 | 1 | — | — | — | — | 3 | — | 57 | 12 | 35 | 234 | 376 | 422 | — | 137 | 261 | 333 | 266 | 178 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 142 | 92 | 56 | 92 | 92 | 394 | 375 | 140 | 126 | 128 | 49 | 306 | 233 | 359 | 136 | 72 | 227 | 780 | 460 | 504 | 39 |
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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