Surf Forecasts:
Southerndown surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 5ft (1.5m), 7s period, WSW swell with 198 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.5m 7s and forecast to arrive on Wednesday (Aug 05) at 4PM. 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 Wednesday (Aug 12) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Wed 5th Aug) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, let’s cut to the chase. I’ve looked over the whole 16-day stretch for Southerndown, and I’ve got to be honest: there is no good surf on offer. Not a single day I’d tell you to grab your board for. We’re in for a long, flat, and messy spell.
The first real shot doesn’t come until the 18th of August. Before that, it’s a wasteland. The 5th and 6th have some waves, but they’re short-period, onshore junk with fresh breezes. Friday the 7th goes glassy in the morning, but the swell is a paltry 0.3m—just flat and clean. The following week is more of the same: small, weak, and cross-onshore. The energy is mostly in the low double digits or less, which is weak. The only half-decent bump is the morning of the 13th, with about 3ft and a light wind, but it’s still not clean and the period is short.
Now, the 18th is when things finally wake up. We’re looking at 7ft of WSW swell with an 8-second period. The energy is a strong 752, which is a real pulse. But the wind is a moderate cross-shore, which will put a chop on it. It’s a marginal call, not a green light. The afternoon sees it jump to 8ft, but the wind goes cross-on at 30 km/h, making it a lumpy, blown-out mess. That’s big enough to be expert-only.
The morning of the 19th is your best bet. The swell drops to a still-solid 5ft, with a 9-second period and energy at 630. The wind is only a light cross-shore, which is a big plus. It’s still a marginal forecast, but it’s the cleanest, most powerful swell of the window. It’s a long way out, so treat it as promising but not set in stone.
After that, the 20th drops back down to 3ft with an offshore breeze, making it clean, but the energy is weak and the period is short. It’s surfable, but nothing special.
So, bottom line: we’ve got a lot of nothing for the next week and a half. The only true standout is the morning of the 19th. It’s got the size, the wind, and the energy. But it’s a long way off, so don’t get your hopes up just yet. The water temp is about normal for this time of year. Keep watching, but be ready for a lot of flat days.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Mon night). Winds increasing (calm on Sat morning, fresh winds from the W by Mon afternoon). | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 7 | WSW 7 | W 6 | W 6 | W 6 | WSW 5 | WSW 5 | W 9 | W 9 | W 9 | WSW 9 | WSW 7 | WSW 7 | WSW 4 | WSW 5 | WSW 6 | W 6 | WSW 5 | WSW 6 | WSW 7 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 93 | 198 | 76 | 62 | 44 | 9 | 5 | 6 | 2 | 2 | 7 | 21 | 18 | 20 | 35 | 50 | 23 | 10 | 6 | 4 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross-off | glassy | cross-on | cross | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-off | cross-off | on | cross-off |
High Tide | 11:27AM7.71m | 11:50PM7.67m | 12:18PM7.30m | 00:47AM7.20m | 1:22PM6.93m | 2:01AM6.85m | 2:44PM6.79m | 3:28AM6.84m | 4:08PM7.06m | 4:47AM7.24m | 5:18PM7.66m | 5:50AM7.83m | 6:15PM8.35m | ||||||||
Low Tide | 5:22PM1.51m | 5:50AM1.68m | 6:15PM1.92m | 6:50AM2.11m | 7:26PM2.29m | 8:09AM2.39m | 8:54PM2.39m | 9:39AM2.34m | 10:24PM2.09m | 10:59AM1.92m | 11:36PM1.52m | 12:02PM1.34m | 00:33AM0.90m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 16 | 16 | 15 | 17 | 17 | 16 | 20 | 21 | 18 | 21 | 22 | 18 | 19 | 20 | 18 | 20 | 23 | 22 |
Feels °C | 11 | 10 | 11 | 10 | 10 | 12 | 14 | 14 | 14 | 18 | 16 | 15 | 18 | 18 | 16 | 16 | 15 | 16 | 17 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 11 | W 10 | WSW 5 | WSW 5 | W 9 | W 4 | W 9 | WSW 9 | WSW 7 | WSW 7 | — | W 8 | WSW 6 | W 8 | WSW 5 | WSW 6 | WSW 7 | W 6 |
| kJ | — | — | — | 2 | 8 | 9 | 5 | 2 | 1 | 2 | 7 | 21 | 18 | — | 1 | 50 | 5 | 10 | 6 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 10 | W 9 | W 9 | W 9 | — | — | — | — | — | — | — | — | W 8 | W 10 | W 10 | W 10 |
| kJ | — | — | — | — | — | 2 | 2 | 6 | 2 | — | — | — | — | — | — | — | — | 5 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | W 8 |
| kJ | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | W 6 | W 6 | W 6 | — | — | W 5 | — | — | — | — | — | WSW 4 | WSW 5 | — | W 6 | — | — | — | — |
| kJ | 93 | 198 | 76 | 62 | 44 | — | — | 4 | — | — | — | — | — | 20 | 35 | — | 23 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 136 | 353 | 306 | 388 | 418 | 367 | 335 | 337 | 359 | 359 | 210 | 333 | 30 | 213 | 352 | 196 | 196 | 196 | 195 | 432 | 196 |
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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