Surf Forecasts:
Southerndown surf forecast from 25 Aug 2026:
- Best quality surf: Sunday 30 Aug, 7AM (local time) - 3.5ft (1.1m), 10s period, WSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 7PM (local time) - 5.5ft (1.7m), 7s period, WSW swell with 289 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 7AM (local time) - 3.5ft (1.1m), 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 Sunday (Aug 30) at 7AM. The primary swell is predicted to be 1.1m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Southerndown in the next 16 days are 1.7m 7s and forecast to arrive on Saturday (Aug 29) at 7PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 30th Aug) | 3.5ft (1.1m) 10s |
| Best Surf | 7AM (Sun 30th Aug) | 3.5ft (1.1m) 10s |
| Most Powerful | 7PM (Sat 29th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at what’s on the cards for Southerndown. I’ll be straight with you: this stretch of 16 days is a real struggle. There’s not a single standout session in the whole outlook, and the water is running at 68°, which is a stonking 7° warmer than usual for this time of year – that’s proper unusual, feels like a warm bath.
We kick off on Tuesday the 25th of August, but it’s tiny. We’re talking about a 0.3 ft swell from the west with a 13-second period, which gives a combined energy of just 4 – that’s about as weak as it gets. The wind is a fresh 22 mph from the east, making it a cross-off breeze, but there’s just nothing to ride. The whole first week is a write-off. Wednesday and Thursday stay flat with micro-swells under 1.0 ft and poor conditions. Friday the 28th sees a little bump to 2 ft from the southwest, but the period drops to 4 seconds and the wind is cross-on, so it’s choppy and messy. You’d be wasting your time.
Then we hit a bit of a lump. Saturday the 29th of August, the swell jumps to 7 ft from the WSW, with a short 8-second period. The combined energy is moderate at 508, but that’s where the good news ends. The wind is howling onshore at 25 mph with rain showers, so it’s a total mess – only for the hardcore or the kites. Sunday the 30th drops to 4 ft, and it’s still cross-on and choppy. This pattern of onshore slop carries right through the first week of September. The wind is relentless, mostly from the west or southwest, blowing 19 to 31 mph, and the swell is always cross-on or onshore. The wave quality is consistently poor. There’s a brief window on Friday the 4th of September with a 3 ft swell and a gentle cross-shore breeze from the northwest, but the period is only 6 seconds and the energy is a weak 79 – not worth a paddle.
The second week doesn’t offer much relief. Saturday the 5th of September sees a 7 ft swell from the WSW with a 9-second period, energy up to 630, but the wind is cross-on and moderate. It’s a lumpy, choppy mess. We get a similar size on Sunday the 6th, but same story – cross-on wind and messy. The energy actually hits 1039 on Saturday afternoon, which is strong, but with the wind ruining it, this setup is honestly more interesting for kite surfing than paddle surfing. The final days into the 9th of September show a slight drop in swell height, but the wind stays cross-on and the period is long around 11-12 seconds, which would normally be good for a point or reef, but at Southerndown with the constant onshore flow, it’s just blown out.
Plain and simple, there are no good surf options in this 16-day window. The guidance confirms this is a beginner-friendly break that’s fairly consistent, but this run is a total blank. Forecasts can change, but right now, I’d save the wax and wait for the next one.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Thu morning. Warm (max 25°C on Tue afternoon, min 16°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Sun afternoon. Warm (max 20°C on Sat morning, min 13°C on Sun night). Mainly strong winds. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 10 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 4 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | WSW 9 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 |
Wave Graph | ||||||||||||||||||||
3 | 8 | 8 | 13 | 6 | 5 | 5 | 14 | 77 | 90 | 113 | 88 | 245 | 181 | 231 | 146 | 54 | 36 | 35 | 64 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | 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 | 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 | |||||||
— | — | 6:16 | — | — | 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 | — | — | — | — | 1 | 21 | 1 | — | 4 | 1 | 2 | 3 | — | — | 1 | 15 | 2 | — | — | — |
Temp °C | 25 | 19 | 21 | 24 | 19 | 17 | 19 | 17 | 16 | 18 | 17 | 20 | 20 | 17 | 19 | 17 | 16 | 15 | 17 | 16 |
Feels °C | 21 | 18 | 21 | 22 | 19 | 18 | 16 | 15 | 13 | 14 | 15 | 15 | 15 | 11 | 16 | 14 | 12 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 10 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 8 | W 8 | SW 8 | — | — | — | WSW 9 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 |
1 | 8 | 8 | 13 | 6 | 5 | 5 | 6 | 1 | 2 | — | — | — | 181 | 231 | 146 | 54 | 36 | 35 | 64 | |
Swell 2 Height (m) Direction Period (s) | W 10 | SW 8 | SW 8 | S 7 | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | W 11 | — | — |
2 | 3 | 2 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 2 | — | — | |
Swell 3 Height (m) Direction Period (s) | SW 8 | — | — | — | — | — | — | W 7 | — | — | — | — | — | — | — | — | — | — | — | — |
3 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 3 | SSE 3 | — | — | — | — | — | WSW 4 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | W 8 | — | — | — | — | — | — |
2 | 1 | — | — | — | — | — | 14 | 77 | 90 | 113 | 88 | 245 | 111 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 126 | 50 | 159 | 467 | 327 | 375 | 190 | 138 | 136 | 263 | 140 | 206 | 306 | 136 | 27 | 229 | 353 | 353 | 306 | 154 |
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.











