Surf Forecasts:
Southerndown surf forecast from 5 Sep 2026:
- Best quality surf: Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 10s period, WSW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 5.5ft (1.7m), 13s period, WSW swell with 946 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10PM (local time) - 2ft (0.6m), 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 Saturday (Sep 05) at 10PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.1m and 13s. 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 13s and forecast to arrive on Monday (Sep 07) at 1PM. 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+) | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Best Surf | 10PM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Most Powerful | 1PM (Mon 7th Sep) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down this Southerndown forecast in feet and miles per hour.
The whole 16-day stretch is a tough one. The first decent surf doesn’t show up until the morning of Saturday, September 12th. Before that, you’re looking at a full week of nothing—cross-shore winds, lumpy, choppy, onshore slop. The swell does push up around Monday, September 7th, with some 5 to 6 foot WSW swell and strong wave energy, but the wind is a fresh 19 mph cross-onshore, ruining it. The period hits 14 seconds that Monday morning, which is a long-period groundswell, but the beach break can’t handle the wind and it’s just a mess.
The only real highlight is the morning of Saturday, September 12th. Southerndown has a small 3 foot W swell with a 6-second period. The energy is weak, but the wind finally turns light cross-offshore from the east at 9 mph, and the conditions are clean. It’s surfable, but barely. The water temperature is about average for this time of year. This spot is fairly consistent and fairly exposed to the SW swell, and it’s a beginner break, so the small size is fine. Crowds are possible sometimes.
After that, the swell drops off fast. The second week is tiny—0.6 to 1 foot waves with mostly onshore wind. By Monday, September 14th, we’re down to 0.6 foot, and it stays flat and messy. There’s a glassy morning on Sunday, September 20th, but with 0.3 foot of swell, it’s flat calm.
One small window on the 12th of September. That’s it.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun afternoon, min 14°C on Fri night). Winds increasing (calm on Sat night, fresh winds from the WSW by Mon afternoon). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Mon night. Very mild (max 19°C on Thu morning, min 14°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 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 8 | WSW 9 | WSW 9 | WSW 6 | WSW 7 | WSW 14 | WSW 13 | WSW 12 | WSW 6 | WSW 7 | WSW 7 | W 7 | W 7 | W 6 | WSW 7 | W 8 | WSW 8 | W 9 | W 9 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 35 | 66 | 26 | 21 | 46 | 874 | 938 | 583 | 252 | 308 | 220 | 159 | 92 | 64 | 171 | 217 | 149 | 300 | 269 | 54 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 1:01PM6.77m | 1:47AM6.53m | 2:33PM6.57m | 3:24AM6.57m | 4:04PM6.95m | 4:43AM7.10m | 5:11PM7.65m | 5:41AM7.78m | 6:04PM8.38m | 6:29AM8.41m | 6:48PM8.96m | 7:10AM8.88m | 7:28PM9.32m | ||||||||
Low Tide | 6:24AM2.36m | 7:09PM2.53m | 7:57AM2.74m | 8:57PM2.62m | 9:43AM2.57m | 10:31PM2.15m | 11:01AM1.98m | 11:35PM1.47m | 11:55AM1.31m | 00:23AM0.82m | 12:39PM0.72m | 1:04AM0.34m | 1:17PM0.31m | 1:40AM0.07m | |||||||
 |  |  | | | | |  |  | |  | | | |  | | | | | | | |
 | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | 6 | — | 1 | — | — | — | 4 | 1 | — | — | — | — | 4 |
Temp °C | 16 | 16 | 15 | 23 | 24 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 19 | 18 | 17 | 17 | 17 | 15 |
Feels °C | 14 | 13 | 15 | 20 | 22 | 17 | 12 | 12 | 11 | 10 | 9 | 10 | 9 | 10 | 11 | 16 | 14 | 15 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | WSW 17 | WSW 13 | — | W 11 | — | — | — | W 7 | — | — | W 12 | W 8 | WSW 8 | — | — | WSW 8 |
| kJ | 82 | 35 | 66 | 26 | 21 | 29 | 531 | — | 553 | — | — | — | 159 | — | — | 3 | 217 | 149 | — | — | 54 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 14 | — | — | — | WSW 17 | — | — | — | — | — | — | — | — | — | W 12 | — | — | — | — | — |
| kJ | 2 | 4 | — | — | — | 27 | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | SE 2 | S 3 | WSW 7 | WSW 14 | WSW 13 | WSW 12 | WSW 6 | WSW 7 | WSW 7 | W 7 | W 7 | W 6 | WSW 7 | WSW 7 | — | W 9 | W 9 | W 6 |
| kJ | — | 28 | — | 1 | 1 | 46 | 874 | 938 | 583 | 252 | 308 | 220 | 138 | 92 | 64 | 171 | 208 | — | 300 | 269 | 52 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 117 | 10 | 54 | 231 | 140 | 470 | 136 | 81 | 136 | 306 | 400 | 450 | 306 | 306 | 165 | 306 | 135 | 138 | 306 | 6 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.
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