Surf Forecasts:
Southerndown surf forecast from 27 Aug 2026:
- Most powerful swell: Monday 31 Aug, 10AM (local time) - 6ft (1.9m), 9s period, WSW swell with 626 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 1.9m 9s and forecast to arrive on Monday (Aug 31) 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 0.3m 2s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 31st Aug) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on offer for Southerndown over the next couple of weeks. I’ll be straight with you – it’s a tough stretch. The water’s sitting at 69° which is much warmer than usual for this time of year, so that’s a nice surprise if you’re having a paddle, but the waves themselves? Yeah, not so much.
We’ve got a long, dry gap right through from the 26th of August all the way into early September. There’s just nothing happening. The first glimmer of something worth talking about doesn’t come until Saturday the 5th of September, and even then it’s only a marginal call. We’re looking at a 6 ft swell from the WSW, but the wind is cross-on and the whole thing is a bit messy. The combined energy is moderate at 295, but it’s not really clean enough to get excited about.
The real standout – and I’m using that word loosely here – is on Sunday the 6th of September. The morning session is the best we’re going to see across the whole 16 days. Southerndown is a beginner-friendly spot, fairly exposed to the swell, and it’s pulling in a 5 ft swell from the west with a cross-off breeze from the ESE. That’s clean, light wind, and the combined energy is a solid 441, so there’s some push behind it. The swell period is 8 seconds, so it’s short-period stuff, but for a beach break that’s not a big worry. It’s not a standout on a global scale, but for this stretch, it’s the one to point the car at.
After that, Monday the 7th keeps things surfable but ordinary, with a 3 ft west swell and the same clean cross-off wind in the morning. From there, it just fades away again. We’ve got nothing but poor conditions for the rest of the run. The wind gets messy, the swell drops, and by the 10th of September we’re looking at tiny 0.7 ft leftovers with fresh cross-onshore wind. Honestly, it’s a bit of a write-off for paddle surfing. If you’re into kiting, some of those windy days in late August might be worth a look, but for a surfboard, you’re waiting for that Sunday the 6th.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Sat morning. Warm (max 25°C on Wed afternoon, min 16°C on Thu night). Winds increasing (calm on Thu morning, fresh winds from the S by Sat morning). | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Sun afternoon. Warm (max 20°C on Sun morning, min 14°C on Sun night). Mainly strong winds. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 7 | WSW 7 | SW 4 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 7 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | WSW 9 | WSW 10 | W 8 | WSW 7 | W 7 | WSW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 7 | 6 | 5 | 5 | 7 | 216 | 242 | 170 | 74 | 74 | 409 | 221 | 211 | 267 | 626 | 556 | 261 | 181 | 155 | 58 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-on | on | on | on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 9:38AM8.75m | 9:57PM8.76m | |||||||
Low Tide | 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 | 3:33PM0.53m | 3:54AM0.69m | |||||||
 |  |  |  |  |  | | | | |  | |  | |  | | | | | | |
 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — |
 | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:00 | — |
mm | — | 1 | 1 | — | 1 | 4 | 2 | 3 | 7 | 3 | — | 2 | 11 | 2 | — | — | 9 | 1 | — | — |
Temp °C | 25 | 20 | 21 | 20 | 17 | 17 | 18 | 17 | 18 | 18 | 16 | 20 | 18 | 15 | 17 | 17 | 16 | 17 | 17 | 16 |
Feels °C | 22 | 19 | 22 | 17 | 16 | 12 | 14 | 15 | 15 | 12 | 11 | 18 | 16 | 11 | 13 | 11 | 11 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 7 | WSW 7 | W 8 | — | — | — | W 6 | WSW 6 | WSW 10 | WSW 10 | W 9 | WSW 8 | — | — | W 8 | W 9 | — | WSW 8 |
| kJ | 7 | 6 | 5 | 5 | 5 | — | — | — | 51 | 74 | 409 | 221 | 106 | 240 | — | — | 249 | 57 | — | 58 |
Swell 2 Height (m) Direction Period (s) | S 7 | — | — | — | W 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 4 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 7 | W 6 | — | WSW 9 | WSW 8 | WSW 9 | WSW 10 | WSW 7 | WSW 7 | W 7 | — |
| kJ | — | — | — | — | 7 | 216 | 242 | 170 | 74 | 62 | 41 | — | 211 | 267 | 626 | 556 | 261 | 181 | 155 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 432 | 406 | 406 | 190 | 153 | 165 | 292 | 117 | 202 | 306 | 81 | 72 | 120 | 81 | 308 | 306 | 577 | 79 | 292 | 110 |
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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