Southerndown Surf Break

Lat Long: 51.45° N 3.61° W

Southerndown Surf Forecast and Surf Report

Issued: 12 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Southerndown sea temperature is
20.4° C
4.1° 

Southerndown surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Southerndown surf forecast from 12 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 4AM (local time) - 2.5ft (0.7m), 9s period, WSW swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with 200 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 4AM (local time) - 2.5ft (0.7m), 9s 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 Thursday (Aug 13) at 4AM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Southerndown in the next 16 days are 1.0m 10s and forecast to arrive on Thursday (Aug 13) at 7PM. 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 4s period and expected on Saturday (Aug 15) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Thu 13th Aug)2.5ft (0.7m) 9s
Best Surf 4AM (Thu 13th Aug)2.5ft (0.7m) 9s
Most Powerful 7PM (Thu 13th Aug)3.5ft (1.0m) 10s

Table - best surf conditions forecast for Southerndown over the next 16 days.


The Lowdown

Right then, let’s have a look at what’s cookin’ for the next couple of weeks. I’ll be straight with you—this is a tough stretch for Southerndown. The charts are showing some swell, but the wind and weather are just not lining up. We’re looking at a long run of poor surf conditions, and honestly, there’s nothing here that’s gonna get me paddling out in a hurry.

The first glimmer of anything rideable comes Thursday the 12th of August, but it’s tiny. A 1ft to 2ft WSW swell with a 10-second period, which is a bit of a groundswell, but the energy is weak (40 to 54). The wind is cross-off in the morning, which is clean, but it swings cross-shore in the afternoon with a bit of chop. It’s just not enough to get excited about.

Friday the 13th sees a bit more size, up to 2ft, from the WSW, with a 10-second period, but the wind is onshore and then cross-on, making it choppy and messy. The energy is still low (86 to 98). This is a beginner level at best, but the wind’s gonna ruin it.

Saturday the 14th drops back to 2ft, and the wind is cross-on again. The combined energy is weak (64). It’s not looking good.

Sunday the 15th has a clean morning with a cross-off NW wind, but the swell is only 1ft with a short 8-second period, and the energy is a measly 23. The afternoon gets a fresh cross-shore wind and lumpy chop. Not worth it.

Monday the 16th of August is the only day that might feel like a tease. The morning is glassy, with a 1ft WSW swell and a 7-second period. The energy is only 14. It’s tiny, but that glassy wind is a rare treat. If you’ve got a foamie and you’re desperate, you could go for a paddle, but it’s not surf.

Then we hit a proper flat spell. From Tuesday the 17th all the way through to Thursday the 18th, the swell drops to 0.7ft with energy in the single digits. That’s a dead ocean.

Friday the 19th kicks up a bit of a pulse, but it’s not good. We get a 3ft to 4ft WSW swell, but the wind is cross-on and the energy is moderate (106 to 155). The period is only 6 seconds, so it’s windswell, and it’s gonna be choppy. This is not a surf day.

The standout for the whole period, if you can call it that, is Thursday the 20th of August. There’s a 6ft W swell with a 8-second period, and the combined energy jumps to 374, which is solid. The wind is cross-shore, so it’s not totally onshore, but it’s a fresh breeze and there’s a lumpy cross-chop. This is a punchy, messy wave. It’s over 5ft, so it’s not for beginners, and the wind is going to make it a battle. Honestly, this setup looks more interesting for kite surfing than paddle surfing. The swell is too big and the wind is too strong for a clean wave.

After that, it drops off again. The 21st and 22nd of August are back to tiny, with a 1ft to 2ft swell and weak energy. There’s a glassy moment on the morning of the 22nd with a 0.3ft swell and a 16-second period, but that’s a long-period groundswell with no size. It’s just a ripple.

The final few days from the 23rd to the 27th of August see a bump in swell, hitting 6ft again on the 23rd and 27th, with moderate energy (389 to 406). But the wind is onshore or cross-on, and the period is short (8 seconds). It’s going to be a messy, choppy affair. The 27th sees rain showers and a strong onshore wind. Not a good look.

The water temperature is about average for the time of year, nothing unusual.

So, the bottom line: there’s no standout surf here. The best on offer is Thursday the 20th of August, with a 6ft W swell, but it’s going to be lumpy and cross-shore. If you’re an expert with a big board and a thick skin, you might find something, but for most of us, it’s a waiting game. The forecasts can change, but right now, this is a blank run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 32°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Sat afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Sun night).

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
WSW
10
0.5
WSW
10
0.6
WSW
9
0.7
WSW
10
0.7
W
10
0.6
WSW
10
0.6
WSW
9
0.5
W
9
0.6
W
8
0.4
WSW
8
0.5
W
7
0.3
WSW
8
0.3
WSW
7
0.2
WSW
7
0.2
WSW
7
0.2
W
7
0.2
WSW
7
0.2
WSW
8
0.9
WSW
6
1.3
WSW
6
1.2
WSW
7
Wave Graph
Metric surfscale
Energy kJ
40
54
65
86
98
74
64
40
46
19
28
11
11
5
5
4
5
7
50
106
147
Wind (km/h)
20
E
20
SSE
5
NW
5
SW
25
W
15
W
20
W
25
W
15
NNW
10
NNW
30
NW
10
NNE
5
NNW
15
WSW
5
NW
10
NW
15
WNW
10
NW
10
W
25
W
25
W
Wind State
cross-off
cross
glassy
on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross
cross-off
glassy
cross-on
glassy
cross
cross-on
cross
cross-on
cross-on
cross-on
High Tide
6:42AM8.41m
7:05PM8.95m
7:29AM8.86m
7:49PM9.35m
8:11AM9.09m
8:30PM9.49m
8:51AM9.10m
9:10PM9.36m
9:30AM8.88m
9:48PM8.99m
10:07AM8.48m
10:25PM8.43m
10:44AM7.95m
11:03PM7.76m
Low Tide
12:53PM0.78m
1:21AM0.39m
1:37PM0.36m
2:03AM0.09m
2:17PM0.15m
2:42AM0.02m
2:55PM0.16m
3:19AM0.19m
3:32PM0.39m
3:54AM0.55m
4:07PM0.80m
4:29AM1.07m
4:44PM1.34m
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:56
5:58
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:43
8:40
8:38
8:37
8:35
8:32
8:30
 mm
Temp °C
28
32
27
26
25
20
22
22
19
21
23
16
18
20
18
15
16
15
18
19
17
Feels °C
24
28
26
23
21
20
20
21
17
17
17
13
15
17
16
13
14
14
16
16
13
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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