Southerndown Surf Break

Lat Long: 51.45° N 3.61° W

Southerndown Surf Forecast and Surf Report

Issued: 12 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Southerndown sea temperature is
20.0°C
3.8° 

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


Southerndown surf forecast from 4 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, 4PM (local time) - 5.5ft (1.7m), 13s period, WSW swell with 903 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 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sat 5th Sep)2ft (0.6m) 10s
Best Surf10PM (Sat 5th Sep)2ft (0.6m) 10s
Most Powerful 4PM (Mon 7th Sep)5.5ft (1.7m) 13s

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


The Lowdown

G’day, Rusty here. Southerndown’s looking at a long, quiet spell before a late bloomer might finally give us something to paddle for. No standout sessions at all, unfortunately.

We start the forecast period with absolutely nothing worth the drive. From Friday the 4th right through until Wednesday the 16th, the water’s flat or just plain slop. The first few days see a solid pulse of swell – up to 6 ft on Friday morning from the WSW, with moderate wave energy (414) – but it’s wrapped in a nasty 35 km/h cross-onshore wind. Raining too. That combo is just whitewash and chaos. A bigger, longer-period pulse rolls in Monday the 7th: 5 ft to 6 ft, 13-second groundswell from the WSW, and combined energy jumping to 746 and 903. Sounds promising, but the wind is smashing it – fresh cross-onshore both sessions. That’s a beach break getting torn apart. For a beginner break like Southerndown, that size with that wind is no fun for anyone.

Through that first week and into the second, it’s a parade of small, weak, wind-affected waves. Loads of cross-on and cross-shore wind, with heights mostly under 4 ft and periods under 8 seconds. Energy readings sit well under 200 most days. The water’s running at 68°, which is much warmer than normal for this time of year – over 5° above the long-term average, so that’s a proper anomaly. Still doesn’t make the surf any better.

There’s a gap from the 4th all the way to the 17th with no surf worth mentioning. On Thursday the 17th, we finally see a shift: a 4 ft morning session with a light offshore from the NNE, clean conditions. Combined energy is moderate at 136. Afternoon stays clean with a 4 ft swell. The ratings are still low – just surfable but ordinary. Not a standout, just the first sign of life.

The real promise, though, lands on Friday the 18th. Morning brings 5 ft from the W, a light cross-offshore from the N, and combined energy jumps to 471. Conditions are clean. The period’s short at 7 seconds, so it’s not a classic groundswell, but it’s the best shape we’ve seen by a long shot. That’s the pick of the entire 16 days – still a ways off, so lock it in as promising but not guaranteed. After that, Saturday the 19th goes glassy in the morning with 3 ft, but it’s pretty weak.

Honestly, for a spot that’s fairly consistent, this is a rough run. But it tends not to stay poor for long around here, and forecasts change. Keep an eye on that Friday the 18th session.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri morning. Warm (max 25°C on Sun afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the W on Fri morning, calm by Sat night).

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Wed night. Very mild (max 17°C on Mon morning, min 13°C on Tue night). Mainly fresh winds.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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)
1.8
WSW
8
1.6
W
8
1.3
WSW
7
0.9
WSW
7
0.5
WSW
8
0.6
WSW
9
0.4
WSW
6
0.6
WSW
6
0.8
WSW
8
1.5
WSW
13
1.7
WSW
13
1.7
WSW
8
1.2
WSW
10
1.6
WSW
6
1.4
W
7
1.2
W
7
1.1
W
6
0.9
W
6
1.2
WSW
7
1.3
WSW
8
1.4
WSW
8
Wave Graph
Metric surfscale
Energy kJ
414
333
181
82
35
66
13
32
66
746
903
335
294
148
192
134
97
59
140
196
256
Wind (km/h)
35
W
35
W
20
WNW
10
WNW
15
W
5
SE
15
SE
10
SSW
20
WSW
20
W
30
WSW
25
WNW
35
W
40
W
25
WNW
20
WNW
25
W
30
SW
25
SW
30
WSW
30
W
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
on
on
cross-on
cross-on
High Tide
11:52AM7.32m
00:25AM7.00m
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
Low Tide
5:49PM2.00m
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
light rain
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
clear
rain showers
clear
part cloud
cloud
mod rain
light rain
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
6:33
6:35
6:37
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:54
7:52
7:50
7:47
7:45
7:44
7:40
 mm
2
2
1
6
1
Temp °C
17
17
16
16
16
15
23
25
18
17
17
16
16
16
15
16
16
16
19
18
17
Feels °C
12
11
11
14
13
14
20
24
17
14
12
9
9
8
9
11
11
11
16
14
12
  • Map Icons:
  • Break
  • 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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