Llangennith Surf Break

Lat Long: 51.59° N 4.30° W

Llangennith Surf Forecast and Surf Report

Issued: 6 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Llangennith sea temperature is
20.6° C
4.2° 

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


Llangennith surf forecast from 16 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 7ft (2.2m), 8s period, WSW swell with 540 kJ wave energy.

Best Forecast Surf Conditions for Llangennith this week:

The most powerful waves expected at Llangennith in the next 16 days are 2.2m 8s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Aug 22) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10PM (Wed 19th Aug)7ft (2.2m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s be straight with you. We’re looking at a pretty grim stretch ahead for Llangennith. The ocean is going to be working, but it’s just not going to be lining up for us for the vast majority of this 16-day window. Most of the time, it’s gonna be messy, blown out, or just plain flat. It’s a tough one to write up, but here’s the honest picture.

First up, there’s nothing worth getting wet for over the next several days. The surf is tiny and the wind is mostly onshore or cross-onshore, chopping up whatever dribble is out there. We're looking at a whole lot of poor surf conditions through the 16th, 17th, and 18th. The weak energy in the water, around 11 to 126, tells you everything you need to know. The swell is short-period, under 7 seconds, and just doesn't have any push.

The 19th and 20th see a bit more swell – up to 5.6ft – and the energy picks up into the low 200s, but it's all for nothing. The wind stays on it from the west and southwest, making it a messy, choppy open beach. This is a setup that’s far more interesting for the kite surfers than for us paddle surfers. Don't get your hopes up for the morning of the 27th either. It’s a touch bigger, 5.6ft, but still junky with a cross-onshore breeze.

We get a tiny tease of cleaner conditions on the 22nd, 23rd, and 24th with some lighter winds, but the swell just disappears. We're talking 0.7ft to 1ft. It’s flat, pure and simple.

Now, the one little spark in all this gloom is the morning of Tuesday, the 25th. It's not a monster by any stretch, with a tiny 0.3ft swell, but the wind goes glassy and the ocean will be clean. The energy is weak as anything, but if you're desperate, it might be the only time you can sit out there without battling the elements. But honestly, with swell that small, it’s a skeg-dragging session at best.

Looking further out, things get more interesting but also less certain. By the 29th and 30th of August, the swell is really forecast to fill in. On the afternoon of the 29th, we could see a solid 9.8ft of west-southwest swell, with energy rocketing up to that 1242 range. That’s very strong wave energy, and it points to some serious size. But, and it's a big but, the wind is going to be howling onshore at 22 mph or more. The 30th keeps that strong energy (368-392) with 5.6ft to 5.9ft waves, but again, it's all blown out by a strong westerly.

The long-range promise is there, but the wind is the great equalizer. This is all promising but less certain given how far out it is.

The water is much warmer than usual for this time of year, coming in at 69.1°F and a solid +7.6°F above the average. It’s a weird feeling to have that warm water and no surf to enjoy it in.

So, there you have it. A whole lot of nothing for the foreseeable future. A blank run like this happens, but Llangennith is a consistent spot, so I don't expect it to stay this bad for long. Keep the faith, keep an eye on the charts, and don’t bother waxing up just yet. We’ll be back.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Sun afternoon, min 14°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Wed night. Very mild (max 18°C on Fri afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the WSW on Wed afternoon, light winds from the WNW by Sat morning).

Sun
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
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
1
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)
0.3
WSW
7
0.3
WSW
7
0.8
W
6
0.7
W
6
0.7
WSW
7
1.2
W
6
0.9
WSW
6
1.4
WSW
6
1.4
W
6
1.7
WSW
7
2.1
WSW
8
1.5
W
7
1.2
W
7
0.9
WSW
8
0.6
WSW
7
0.6
W
6
0.5
W
8
0.3
WSW
8
0.2
WSW
10
0.3
WSW
10
Wave Graph
Metric surfscale
Energy kJ
10
10
41
30
51
115
64
135
166
261
520
225
142
104
34
30
34
14
10
19
Wind (km/h)
20
W
15
WSW
10
WNW
25
W
20
WSW
20
WNW
25
W
25
W
30
W
35
WSW
25
W
20
WNW
25
NW
20
NNW
15
N
20
NW
15
N
15
NNE
15
NW
20
NNE
Wind State
on
on
on
on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross-on
cross
cross-off
cross-on
cross-off
High Tide
9:40PM8.46m
9:59AM7.98m
10:17PM7.94m
10:35AM7.48m
10:54PM7.30m
11:13AM6.91m
11:35PM6.64m
11:56AM6.32m
00:23AM6.02m
12:52PM5.80m
1:31AM5.54m
2:16PM5.50m
3:07AM5.42m
Low Tide
3:48AM0.53m
4:02PM0.76m
4:23AM1.02m
4:38PM1.28m
4:59AM1.59m
5:17PM1.85m
5:39AM2.19m
6:04PM2.43m
6:31AM2.73m
7:09PM2.91m
7:50AM3.10m
8:44PM3.11m
cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
rain showers
part cloud
light rain
rain showers
cloud
part cloud
part cloud
rain showers
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:07
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:38
8:37
8:35
8:31
8:30
8:28
8:25
 mm
2
2
3
2
Temp °C
18
18
18
18
18
18
18
17
17
17
17
16
17
14
16
18
14
18
18
15
Feels °C
14
18
17
14
16
15
14
13
12
11
12
12
12
9
14
14
10
16
14
11
  • 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 Llangennith Surf forecast

The above surf forecast table for Llangennith provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Llangennith can be found by selecting the local surf guide option on the grey menu. Our Llangennith 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 (Llangennith) 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 Llangennith 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.

Llangennith is 24 km (15 miles) from Swansea. If you plan a holiday in Wales - Gower, look for hotels and other accommodation in Swansea. Swansea has rooms for a wide range of budgets as well as car hire and transport links.

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