Surf Forecasts:
Southerndown surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 7PM (local time) - 3.5ft (1.0m), 7s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 4.5ft (1.4m), 7s period, W swell with 212 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 7PM (local time) - 3.5ft (1.0m), 7s period with W 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 Thursday (Aug 20) at 7PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.6m and 9s. Another secondary swell of 0.1m and 15s is also forecast. 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 1.4m 7s and forecast to arrive on Thursday (Aug 20) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Thu 20th Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 7PM (Thu 20th Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 10AM (Thu 20th Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, let me level with you. The full 16-day outlook for Southerndown is a tough one. The swell is barely there, and the wind is mostly onshore, ruining what little surf we get. The water is a balmy 70°, which is about 8° warmer than normal for this time of year – that’s a real anomaly, so the warm water is a nice bonus.
The first few days are a bust. Wednesday the 19th is all lumpy, cross-onshore wind with tiny, weak 2ft waves from the WSW, with a combined energy of just 48. Thursday is the same story – poor quality, small surf.
Friday morning the 21st has a moment of glassy calm, but the waves are a miniscule 2ft, and the energy is a flat 37. Saturday the 22nd looks clean in the morning with a light offshore, but the swell is only 1ft.
From Sunday the 23rd right through the end of the month, it’s essentially flat. There are clean days, like Monday the 24th and Tuesday the 25th, but the swell is only 0.3ft to 0.7ft. It’s just a complete blank.
The only period with any real size comes on Monday the 31st of August. The morning shows a 5ft swell from the west, with a moderate combined energy of 394, building to 5ft in the afternoon, with energy up to 489. The problem is the wind is a fresh cross-shore, turning into a fresh cross-onshore, which will make it a lumpy, bumpy mess. It’s the only sizeable window, but it’s not clean. This is for experienced surfers only, as the 5ft waves are too big for beginners.
There’s no standout session here. The whole forecast is grim for paddle surfing. On the days with stronger cross-onshore wind and a bit of swell, like the 31st of August, it might be more interesting for a kite.
Rusty
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Wed morning, min 12°C on Fri night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 6 | W 5 | WSW 7 | W 7 | W 7 | W 9 | W 8 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 52 | 143 | 212 | 143 | 101 | 35 | 13 | 7 | 18 | 17 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 30 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | glassy | glassy | cross-on | off | cross-off | cross-off | off | glassy | on | off | cross-off | cross-off | off | cross-off | glassy | glassy |
High Tide | 11:22AM7.34m | 11:42PM7.06m | 12:04PM6.72m | 00:30AM6.40m | 1:00PM6.16m | 1:39AM5.89m | 2:24PM5.84m | 3:16AM5.76m | 4:00PM5.98m | 4:38AM6.08m | 5:06PM6.47m | 5:32AM6.62m | 5:53PM7.08m | ||||||||
Low Tide | 5:23PM1.95m | 5:45AM2.30m | 6:09PM2.56m | 6:37AM2.88m | 7:14PM3.08m | 7:53AM3.28m | 8:46PM3.31m | 9:31AM3.29m | 10:20PM3.09m | 10:50AM2.91m | 11:23PM2.60m | 11:43AM2.36m | 00:08AM2.02m | ||||||||
 | |  |  | | | | |  |  | | | | | | | |  | | |  | |
 | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — |
mm | — | — | 2 | 2 | 1 | 4 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 16 |
Temp °C | 18 | 18 | 16 | 18 | 18 | 15 | 15 | 17 | 15 | 18 | 19 | 17 | 18 | 19 | 19 | 21 | 23 | 20 | 20 | 19 | 18 |
Feels °C | 14 | 12 | 12 | 14 | 13 | 13 | 13 | 14 | 12 | 16 | 16 | 14 | 16 | 16 | 16 | 16 | 18 | 16 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | — | SW 16 | WSW 7 | WSW 9 | W 9 | W 8 | WSW 6 | WNW 4 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 10 |
| kJ | 37 | — | 10 | 164 | 28 | 101 | 35 | 8 | 3 | 18 | 17 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 7 | 6 | 30 |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | W 16 | W 15 | SW 15 | SW 14 | — | WSW 8 | WSW 6 | SW 15 | SW 15 | WNW 4 | SW 14 | SW 14 | — | SW 14 | SW 14 | — | W 13 | W 13 | — |
| kJ | 11 | — | 5 | 4 | 8 | 8 | — | 13 | 3 | 9 | 9 | 1 | 8 | 8 | — | 8 | 8 | — | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | NNW 5 | — | W 13 | WSW 8 | W 10 | W 15 | SW 15 | W 15 | — | SW 14 | — | — | W 13 | — | — | — |
| kJ | — | — | — | — | — | 9 | — | 3 | 7 | 8 | 4 | 8 | 4 | — | 8 | — | — | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 5 | WSW 7 | W 7 | W 7 | — | — | WNW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 52 | 143 | 212 | 143 | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 353 | 306 | 467 | 81 | 263 | 0 | 30 | 130 | 50 | 62 | 195 | 56 | 92 | 444 | 195 | 374 | 460 | 347 | 213 | 306 | 56 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Southerndown surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest