Surf Forecasts:
Southerndown surf forecast from 17 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 7PM (local time) - 2.5ft (0.7m), 4s period, NW swell with 16 kJ wave energy.
Best Forecast Surf Conditions for Southerndown this week:
The most powerful waves expected at Southerndown in the next 16 days are 0.7m 4s and forecast to arrive on Wednesday (Jul 22) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 19) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 22nd Jul) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Southerndown over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this look at Southerndown is a tough one. We’re staring down a long, dry spell with barely a ripple to get excited about for the next couple of weeks. The water is sitting at 68° – that’s a whopping 8° above normal for this time of year, which is seriously unusual, almost like a warm bath. But warm water doesn’t mean waves, and we’ve got a whole lot of nothing on the horizon.
Kicking off on Friday the 17th of July, we see a tiny 0.7ft swell from the west with a weak energy reading of just (7). The morning is glassy and clean, but the waves are basically non-existent. By the afternoon, the wind swings to a cross-on shore and the swell drops further. Not a single decent wave in sight.
The pattern just repeats. Saturday the 18th, Sunday the 19th, Monday the 20th – all the same story. Small, weak west swell, rarely reaching 0.3ft to 1ft, and the energy never cracks double digits. The wind is all over the place, sometimes clean, but the swell simply isn’t there. The period is often short, under 8 seconds, so even if there was height, it’d be weak and mushy.
We go through an entire week – through the 21st, 22nd, 23rd, 24th, 25th, 26th, 27th – and it’s the same grim picture. Every single forecast window is marked “poor surf conditions.” The largest swell we see in this whole stretch is a 1ft from the west-northwest on the 18th afternoon, but it’s cross-on and choppy. There’s a brief moment on the morning of the 30th of July where a clean ESE wind meets a 1.0ft southwest swell, but it’s still tiny. The energy is only (15) – weak to moderate at best.
For the first week of August, it’s more of the same. The 1st of August shows nothing but 0.3ft west swell and 16 mph cross-on winds. The combined energy is a pathetic (1). There is simply no surf to recommend.
Given the consistent lack of height and energy, there is no standout session. The best we can say is for a surfer who is desperate, the morning of Thursday the 30th of July offers the cleanest conditions with a tiny 1.0ft southwest swell and glassy winds. But expect knee-high slop at best. This is a blank run, and for Southerndown, it’s a normal part of a summer lull.
Stay patient, it tends not to stay this poor forever. Rusty out.
Short Range ForecastMostly dry. Warm (max 24°C on Fri morning, min 13°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Tue afternoon, min 16°C on Mon night). Winds increasing (calm on Tue night, fresh winds from the NNW by Wed afternoon). | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 | W 8 | WNW 4 | W 8 | NW 3 | WNW 4 | W 7 | W 7 | W 10 | W 12 | W 11 | NW 4 | W 11 | W 10 | W 10 | NW 4 | NW 4 | NW 4 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 1 | 2 | 1 | 3 | 2 | 1 | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 2 | 1 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | off | cross-off | cross-on | off | cross-off | cross-on | glassy | cross | cross | cross-off | cross-off | glassy | glassy |
High Tide | 9:35PM9.20m | 9:58AM8.63m | 10:18PM8.84m | 10:41AM8.22m | 11:02PM8.32m | 11:25AM7.72m | 11:46PM7.70m | 12:10PM7.18m | 00:34AM7.08m | 1:01PM6.69m | 1:29AM6.54m | 2:03PM6.32m | 2:38AM6.21m | ||||||||
Low Tide | 3:19PM0.40m | 3:48AM0.38m | 4:02PM0.64m | 4:31AM0.73m | 4:45PM1.02m | 5:13AM1.20m | 5:28PM1.51m | 5:57AM1.73m | 6:15PM2.03m | 6:44AM2.25m | 7:08PM2.51m | 7:40AM2.68m | 8:13PM2.85m | ||||||||
 |  |  | | |  | | | | | | | | | | | | |  | | | |
 | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 21 | 20 | 23 | 19 | 20 | 21 | 20 | 22 | 23 | 22 | 23 | 24 | 24 | 23 | 24 | 21 | 20 | 23 | 23 |
Feels °C | 21 | 20 | 18 | 18 | 19 | 13 | 17 | 18 | 18 | 20 | 19 | 19 | 21 | 21 | 22 | 18 | 18 | 19 | 20 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | WNW 4 | W 8 | W 8 | WNW 4 | W 7 | W 7 | NW 3 | W 9 | W 8 | NW 4 | W 11 | W 10 | WNW 3 | W 10 | W 9 | NW 4 | W 9 | W 9 | W 8 |
| kJ | 5 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 5 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | W 8 | — | — | W 8 | NW 4 | — | W 7 | — | W 11 | W 8 | W 8 | W 7 | W 10 | — | — | W 9 | — | NW 4 | — |
| kJ | 2 | 1 | 1 | — | — | 1 | 1 | — | 1 | — | 2 | 1 | 1 | 1 | 2 | — | — | 2 | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 6 | — | — | — | — | — | W 10 | W 12 | W 11 | W 11 | — | W 7 | W 7 | — | — | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | 2 | 3 | 2 | 2 | — | 1 | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 2 | — | — | NW 3 | ENE 3 | — | — | — | — | — | — | — | — | — | NW 4 | NW 4 | — | — | — | — |
| kJ | — | 1 | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 347 | 1725 | 425 | 423 | 423 | 423 | 360 | 195 | 333 | 210 | 425 | 367 | 133 | 190 | 133 | 367 | 423 | 208 | 159 | 511 | 354 |
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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