Surf Forecasts:
Southerndown surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 4AM (local time) - 3ft (0.9m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 10PM (local time) - 5.5ft (1.7m), 8s period, WSW swell with 383 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 4AM (local time) - 3ft (0.9m), 7s 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 Wednesday (Sep 16) at 4AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.7m and 8s. 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 1.7m 8s and forecast to arrive on Thursday (Sep 10) at 10PM. 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+) | 4AM (Wed 16th Sep) | 3ft (0.9m) 7s |
| Best Surf | 4AM (Wed 16th Sep) | 3ft (0.9m) 7s |
| Most Powerful | 10PM (Thu 10th Sep) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Right… well, let’s just rip the plaster off – the next sixteen days ain’t exactly firing for Southerndown. This is a quieter stretch, with no proper standout sessions, and a whole lot of "wait and see." The first decent bit of energy worth paddling for doesn't show up until Wednesday the 16th, and even then, it's got issues.
Looking at what’s on offer, Wednesday the 16th afternoon is the only window that really gets the heart rate up. The swell pushes to 6ft out of the WSW, with a period around 8 seconds, and the combined energy hits a solid 404 (moderate). That’s more grunt than we’ve seen for a while. The wind is a moderate cross-shore from the SSE, which will hold the surface together, but at that size, the beach-and-reef setup here is really going to suit a kite more than a paddle. For the surfer who wants to take the risk, Thursday morning the 17th sees the swell drop back to 4ft, but the wind goes cross-onshore from the W, so it’ll be a bit of a battle.
For the few cleaner moments, you’re looking at glassy or cross-off mornings. Saturday morning the 19th, the wind is glassy from the E, but the swell is tiny at 1ft to 2ft. The period on the 19th morning is a long 12 seconds from the WSW, but with that little energy (39), it’s more of a longboard float than a proper session. Sunday the 20th has glassy conditions with minuscule swell, and Monday the 21st through Tuesday the 23rd offer clean cross-off winds from the ENE and E, but again, the swell stays small – mostly under 2ft. The late shift on Wednesday the 23rd afternoon shows a slight bump to 3ft from the W with a 6-second period, cross-off E wind, so it’s clean but short-period and weak (energy 145).
Honestly, for the average surfer, there is nothing that screams "go now." If you’re a beginner, the small waves from the 14th (Monday) morning could be alright – 2ft, glassy, cross-off – but it’s a 5-second period, so it’ll be weak and soft. For the experts, nothing breaks the 8ft mark, so there’s no risk of that. The water temperature is about average for the time of year at Southerndown.
Keep the board waxed, wait and see if the forecasts sharpen up. It’s never poor forever.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 18°C on Thu morning, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Warm (max 20°C on Mon afternoon, min 13°C on Sat night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun night). | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 8 | WSW 8 | WSW 8 | WSW 8 | WSW 6 | WSW 9 | WSW 9 | W 9 | WSW 8 | WSW 6 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 5 | WSW 6 | W 6 | W 8 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 134 | 87 | 50 | 11 | 90 | 336 | 184 | 140 | 78 | 134 | 280 | 151 | 106 | 84 | 62 | 43 | 23 | 24 | 19 | 30 | 39 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | on | on | cross | cross | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 5:41AM7.78m | 6:04PM8.38m | 6:29AM8.41m | 6:48PM8.96m | 7:10AM8.88m | 7:28PM9.32m | 7:48AM9.13m | 8:06PM9.42m | 8:24AM9.15m | 8:41PM9.27m | 8:59AM8.95m | 9:16PM8.90m | 9:32AM8.57m | 9:49PM8.36m | |||||||
Low Tide | 11:55AM1.31m | 00:23AM0.82m | 12:39PM0.72m | 1:04AM0.34m | 1:17PM0.31m | 1:40AM0.07m | 1:53PM0.11m | 2:13AM0.04m | 2:26PM0.13m | 2:45AM0.22m | 2:58PM0.36m | 3:16AM0.58m | 3:30PM0.76m | 3:47AM1.08m | |||||||
 |  |  | |  |  | | | | | |  | | | | | | | | |  | |
 | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — |
 | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — |
mm | — | — | — | — | 1 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 18 | 18 | 17 | 18 | 17 | 15 | 18 | 18 | 17 | 16 | 16 | 15 | 19 | 20 | 18 | 19 | 20 | 20 |
Feels °C | 11 | 11 | 11 | 13 | 14 | 14 | 15 | 14 | 13 | 13 | 14 | 15 | 14 | 14 | 13 | 19 | 19 | 19 | 19 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | WSW 8 | WSW 8 | WSW 8 | W 11 | WSW 9 | WSW 9 | W 9 | WSW 8 | — | — | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 6 | W 6 | W 8 | SW 6 |
| kJ | 134 | 87 | 50 | 11 | 2 | 336 | 184 | 130 | 78 | — | — | 151 | 106 | 84 | 62 | 43 | 14 | 24 | 19 | 30 | 39 |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 8 | WSW 8 | WSW 8 | W 11 | WSW 10 |
| kJ | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 13 | 12 | 9 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | W 11 | — |
| kJ | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 9 | — |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | WSW 4 | WSW 6 | — | — | WSW 9 | — | WSW 6 | WSW 7 | — | — | — | — | — | WSW 5 | — | — | S 3 | — |
| kJ | — | 31 | — | 11 | 90 | — | — | 140 | — | 134 | 280 | — | — | — | — | — | 23 | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 31 | 23 | 406 | 265 | 81 | 30 | 93 | 54 | 359 | 375 | 79 | 6 | 123 | 23 | 12 | 140 | 107 | 107 | 120 | 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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