Southerndown Surf Break

Lat Long: 51.45° N 3.61° W

Southerndown Surf Forecast and Surf Report

Issued: 12 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Southerndown sea temperature is
20.5°C
4.3° 

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


Southerndown surf forecast from 28 Aug 2026:

  • Most powerful swell: Monday 31 Aug, 7AM (local time) - 6ft (1.8m), 9s period, WSW swell with 563 kJ wave energy.

Best Forecast Surf Conditions for Southerndown this week:

The most powerful waves expected at Southerndown in the next 16 days are 1.8m 9s and forecast to arrive on Monday (Aug 31) at 7AM. 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+)--
Best Surf--
Most Powerful 7AM (Mon 31st Aug)6ft (1.8m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s break down Southerndown. This is a tough one. We’ve got a long, long stretch of poor conditions before anything even starts to look like a wave, and even then, it's not for the faint-hearted.

The next couple of weeks are dominated by wind and weather that just won’t line up right. From Friday the 28th of August right through to the 8th of September, it’s a write-off. The water is way warmer than normal for this time of year, sitting at 69°F with a 8°F anomaly, which is very unusual, but that’s about the only interesting thing happening. The swell energy stays low early on, with readings like 44 and 87, and the wind is a constant cross-on mess. On the 30th of August, the swell jumps up to moderate energy with a combined 190, and then on Monday the 31st of August we see the strongest push with a reading of 487 as the swell hits 6 ft from the WSW. The period is a short 9 seconds, so lumpy, fat waves. But the wind is a fresh cross-onshore, and the model calls it “poor surf conditions” every single session. Not one decent window for a paddle.

This pattern continues through the first week of September. Winds are onshore or cross-onshore mostly, with the odd bit of cross-shore. Tuesday the 8th of September sees a strong breeze hitting 25 mph from the west, making a messy, blown-out scene. For a beach setup like Southerndown, this is more kite-surfing territory than a surfer’s dream – the wind and chop will be relentless.

Finally, on Sunday the 6th of September, we get a tease. The morning brings a light east breeze at 6 mph, cross-offshore, with the model calling it “clean.” The swell is tiny though, just 1 ft from the WSW with a 9-second period and energy at a weak 25. The afternoon goes glassy with zero wind and a clean surface, but the wave height drops to 1.0 ft. It’s pretty, but not surfable. The rest of the second week? Swell fades out completely. By the 10th of September, we’re looking at 0.7 ft and 0.3 ft waves with energy readings as low as 3. A couple of those sessions show glassy conditions early, but there’s just no water moving.

So, what’s the best on offer? Honestly, there’s no standout. If you had to pick a moment, Sunday the 6th of September afternoon is the only time the wind dies and the surface goes clean, but you’d be bobbing on ripples, not waves. That’s the harsh truth for this stretch. The forecast can always change, but right now, Southerndown is a flat, blown-out mess for the whole 16 days.

Rusty.

Short Range Forecast

Heavy rain (total 34mm), heaviest during Sat morning. Very mild (max 19°C on Fri morning, min 15°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed afternoon. Very mild (max 18°C on Tue afternoon, min 16°C on Mon morning). Winds increasing (light winds from the WNW on Mon night, fresh winds from the WSW by Wed afternoon).

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
WSW
5
1.2
WSW
6
0.9
WSW
5
0.8
SW
6
0.6
SW
6
1.4
W
10
1.1
WSW
9
1.2
WSW
9
1.6
WSW
8
1.7
WSW
9
1.5
WSW
9
1
WSW
10
0.7
WSW
6
0.8
W
6
0.3
WSW
8
0.7
WSW
5
1.4
SW
5
1.4
WSW
7
1.3
WSW
8
1.8
WSW
7
1.4
WSW
8
Wave Graph
Metric surfscale
Energy kJ
44
87
46
39
27
370
190
197
323
487
344
197
36
40
11
19
106
208
186
334
214
Wind (km/h)
30
WSW
30
WSW
20
SW
15
SSE
10
WNW
20
W
20
SSW
20
SSW
30
WSW
30
WNW
25
W
15
W
15
W
25
W
15
W
25
SW
35
SW
30
WSW
30
WSW
35
WSW
35
WSW
Wind State
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
on
on
High Tide
7:38PM8.71m
7:55AM8.61m
8:11PM9.00m
8:29AM8.84m
8:45PM9.12m
9:03AM8.89m
9:20PM9.04m
9:38AM8.75m
9:57PM8.76m
10:17AM8.41m
10:38PM8.28m
11:00AM7.92m
11:25PM7.66m
Low Tide
1:28PM0.82m
1:48AM0.59m
1:59PM0.51m
2:18AM0.36m
2:29PM0.35m
2:48AM0.29m
3:00PM0.35m
3:19AM0.40m
3:33PM0.53m
3:54AM0.69m
4:10PM0.88m
4:33AM1.15m
4:54PM1.40m
thunderstorm
rain showers
rain showers
rain showers
rain showers
part cloud
rain showers
rain showers
thunderstorm
part cloud
cloud
part cloud
clear
clear
part cloud
light rain
rain showers
light rain
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:20
6:22
6:24
6:26
6:26
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:07
8:06
8:04
8:00
7:59
7:57
 mm
2
1
3
12
1
2
7
6
1
4
1
Temp °C
19
19
17
18
19
17
19
17
16
17
17
17
17
18
16
17
18
18
19
19
19
Feels °C
14
14
14
17
19
13
15
13
11
13
13
14
14
14
15
13
13
14
15
14
14
  • 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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