Southerndown Surf Break

Lat Long: 51.45° N 3.61° W

Southerndown Surf Forecast and Surf Report

Issued: 6 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Southerndown sea temperature is
19.6°C
3.6° 

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


Southerndown surf forecast from 9 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 10AM (local time) - 3ft (0.9m), 7s period, WSW swell with glassy winds.
  • Most powerful swell: Thursday 10 Sep, 10PM (local time) - 5.5ft (1.7m), 8s period, W swell with 412 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 10AM (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 Tuesday (Sep 15) at 10AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.1m and 11s. 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 8s and forecast to arrive on Thursday (Sep 10) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Sep 15) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Tue 15th Sep)3ft (0.9m) 7s
Best Surf10AM (Tue 15th Sep)3ft (0.9m) 7s
Most Powerful10PM (Thu 10th Sep)5.5ft (1.7m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on offer for Southerndown over the next couple of weeks. I’ll be straight with you – it’s a tough run.

The overall pattern is pretty grim for most of the period. We’ve got a long stretch of poor surf conditions, with a lot of onshore wind and choppy, bumpy water. The only real glimmers of something rideable are a couple of mornings where the wind drops out or goes light offshore, but even then the swell is small and unexciting. There’s a gap of several days with no real recommendations from the 9th right through to the 14th, so don’t bother checking the cam.

For the first bit of action, we’re looking at Tuesday morning, the 15th of September. Southerndown is the only break in the game here. It’ll be glassy, with a slight air moving across the surface, and the swell is a tiny 3 ft from the WSW. The combined energy is weak (81). It’s surfable, but only just. You’ll be on a log or a longboard, scratching into anything you can. The water temperature is 67°F, which is much warmer than normal for this time of year – over 5°F warmer, so that’s a real standout. Don’t need a thick wetsuit, that’s for sure. Crowds are *sometimes* an issue here, but on a day like this you’ll probably have it to yourself. It’s a beginner-friendly break, fairly consistent, and exposed to the SW swell. The wind is offshore (NE) and light, so it’ll be clean.

Then we skip forward again. The next morning that’s worth a mention is Wednesday the 16th of September. Southerndown shows a little more life. The swell is 4 ft from the W, with a period of 7 seconds, and the combined energy picks up to a moderate 216. The wind is offshore from the NNE at 9 mph, so it’s clean. It’s still only a “surfable but very ordinary” kind of day. The swell is a bit short-period, so it won’t have much grunt – more of a shortboard grovel than a proper wave.

Now, for the real standout of the whole forecast – and I’m saying this with a cautious eye because it’s over a week away – is the 19th of September, Saturday. The swell jumps up to 6 ft from the W, with a period of 8 seconds. The combined energy spikes to a strong 464. That’s proper wave energy. But here’s the catch: the wind is onshore from the WSW at 12-15 mph, and the conditions are rated as “poor surf conditions” and “unknown” for the morning, and “moderate cross-onshore and choppy” for the afternoon. This is a case of a lot of swell but messy, blown-out surf. For a beach break like Southerndown, the setup looks more interesting for kite surfing than paddle surfing. The swell is over 5 ft, which is a bit much for beginners, and it’s too messy for most. Only experts might find something in the troughs, but honestly, it’s not going to be pretty.

The 20th of September, Sunday, is similar – 6 ft from the W, strong energy (474), but again cross-onshore wind and lumpy. The same kite-surfing caveat applies.

We get another clean window on Tuesday the 22nd of September. Southerndown in the morning is glassy with a NE wind at 3 mph. The swell is 4 ft from the WSW, period of 7 seconds, and combined energy of 118 (moderate). It’s another “surfable but very ordinary” call. The wind is 3 mph from the NE, so it’s basically glass. Clean, small, and fun for a longboard if you’re desperate. But it’s not going to be a day you remember.

Beyond that, we’ve got a few days of tiny, clean, cross-offshore wind conditions from the 23rd to the 24th, but the swell drops to 0.9 ft to 2 ft – not worth paddling out for.

To sum it up: the best on offer is the morning of the 16th of September (Wednesday) for the cleanest conditions with a bit of size, and the morning of the 22nd of September (Tuesday) for a glassy, small-wave session. The big swell on the 19th and 20th is a lot of water but a messy, windy mess. Don’t get your hopes up for anything epic. The first week is a write-off. Long-range, the 19th has potential, but it’s far out and the wind is against it.

Stay patient, keep an eye on the wind shifts, and the glassy mornings might just give you a window.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Very mild (max 19°C on Sat morning, min 13°C on Wed night). Winds increasing (light winds from the WSW on Wed night, fresh winds from the SW by Thu afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Mon afternoon, min 16°C on Sat night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Mon night).

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
1
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)
0.7
WSW
8
0.6
WSW
8
0.6
WSW
5
1.5
WSW
6
1.5
W
9
1.1
WSW
9
0.9
WSW
9
0.8
WSW
8
1.1
WSW
6
1.4
WSW
7
1.4
WSW
7
0.9
WSW
10
0.7
WSW
10
0.6
WSW
9
0.5
WSW
9
0.7
WSW
9
0.7
WSW
6
0.9
WSW
7
0.8
WSW
7
0.5
W
8
Wave Graph
Metric surfscale
Energy kJ
68
50
14
175
380
193
113
78
71
166
193
169
98
68
46
70
35
79
65
34
Wind (km/h)
15
W
10
WSW
25
SSW
30
SW
20
WSW
10
NW
20
W
15
WSW
25
SW
30
WSW
20
W
10
NW
20
W
10
WSW
15
SW
20
W
5
S
5
SE
15
WNW
15
N
Wind State
cross-on
cross-on
on
on
cross-on
cross
cross-on
on
on
on
cross-on
cross
cross-on
on
on
cross-on
cross-on
glassy
cross-on
cross-off
High Tide
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
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
cloud
part cloud
part cloud
light rain
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:43
6:45
6:46
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:44
7:40
7:38
7:37
7:34
7:31
7:30
 mm
1
Temp °C
16
15
17
17
17
17
17
15
19
18
17
18
18
16
19
20
18
20
20
18
Feels °C
13
12
13
12
14
16
15
14
14
14
14
16
16
15
18
19
19
20
19
17
  • 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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