Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 12 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
19.6°C
3.4° 

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


Mewslade Bay surf forecast from 2 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 4PM (local time) - 8ft (2.4m), 11s period, WSW swell with 1,365 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period with WSW swell.

Best Forecast Surf Conditions for Mewslade Bay this week:

The surf forecast for Mewslade Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 7AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mewslade Bay in the next 16 days are 2.4m 11s and forecast to arrive on Monday (Sep 07) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 5th Sep)3.5ft (1.1m) 7s
Best Surf 7AM (Sat 5th Sep)3.5ft (1.1m) 7s
Most Powerful 4PM (Mon 7th Sep)8ft (2.4m) 11s

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


The Lowdown

Alright folks, Rusty here. Let's be straight with you. I've scanned the charts for Mewslade Bay over the next 16 days, and I have to be honest with you: it's looking pretty bleak. This is one of those stretches where the ocean just can't seem to get its act together. There isn't a single decent session on the cards for this stretch of coast, so let's just call it as it is.

The main problem is that whenever we get any kind of sizeable swell, the wind is just ruining it. We've got a bunch of poor surf conditions flagged up with strong cross-shore and onshore winds. That cleanup period from Wednesday the 2nd through to Friday the 4th, we're looking at waves around 4.3ft to 6.6ft, but it's all being blown out with a fresh breeze. The combined energy gets going, hitting 117 on Wednesday morning and climbing to 517 by Friday morning, but it's all messy, lumpy chop. Not worth your time.

There is one tiny window of hope on Saturday morning, the 5th. The wind drops to nothing, absolutely glassy, and we get a bit of leftover swell at 3.0ft from the WSW. The energy is weak at just 93, but it's the only time the bay looks like a surf spot instead of a washing machine. It'll be small and the period is a short 7 seconds, so it'll be a bit crumbly. Still, if you're desperate for a splash, that's your only real look and one of only two clean-ish windows. The crowd situation can be a bit real here at times too, so expect some company.

Other than that, it's a complete misery fest. There are a few days with a pulse of bigger swell – like the 7th and 8th of September where the energy numbers jump into the 1000s, but that's all tied to fresh cross-shore winds, a 6.9ft to 7.9ft swell, and just crap conditions. That's going to be a lumpy, unsurfable mess, and honestly, at that size and with that much wind, your time might be better spent with a kite than a surfboard. It's just not a paddle-surfing setup.

There's more of the same into the second week. The swell fades quickly after the 10th, and while we get a couple more glassy moments, the waves are just too small, down around 1.3ft to 1.6ft. You're just staring at a flat lake. This is a long, drawn-out blank period. The forecast can change, but as it stands, I'd find another way to spend your time. There's just nothing here worth paddling out for.

Stay salty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 19°C on Wed afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the NW by Fri night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Warm (max 23°C on Sun afternoon, min 14°C on Sat morning). Winds increasing (calm on Sat afternoon, strong winds from the W by Mon night).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
1
1
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)
1.3
SW
6
1.8
WSW
7
1.9
WSW
7
1.5
WSW
8
1.4
WSW
8
2.3
WSW
7
2
WSW
8
1.7
WSW
8
1.3
WSW
7
0.9
WSW
7
0.8
WSW
10
0.6
WSW
9
0.5
W
9
0.4
WSW
8
1.2
WSW
5
1.8
WSW
7
2.4
WSW
11
2.4
WSW
9
2.1
WSW
8
2.1
WSW
7
2.4
W
8
Wave Graph
Metric surfscale
Energy kJ
107
306
369
256
226
459
509
392
191
86
123
65
40
22
59
319
1365
917
588
408
645
Wind (km/h)
35
S
35
WSW
30
WSW
25
WSW
30
SW
50
SW
30
WNW
30
W
20
NW
0
WSW
10
WSW
15
ESE
30
ESE
15
SE
15
SSW
30
W
35
WNW
45
W
35
W
35
W
35
WNW
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
glassy
cross-on
cross
cross
cross-on
on
cross-on
cross
cross-on
cross
cross
cross
High Tide
10:08AM7.90m
10:28PM7.78m
10:51AM7.44m
11:16PM7.20m
11:43AM6.88m
00:16AM6.58m
12:52PM6.37m
1:38AM6.14m
2:24PM6.19m
3:16AM6.18m
3:56PM6.54m
4:36AM6.67m
5:04PM7.20m
Low Tide
4:06PM0.85m
4:28AM1.10m
4:49PM1.33m
5:16AM1.67m
5:45PM1.90m
6:20AM2.24m
7:06PM2.39m
7:55AM2.58m
8:54PM2.45m
9:38AM2.39m
10:25PM1.99m
10:53AM1.83m
11:27PM1.35m
light rain
part cloud
part cloud
clear
clear
rain showers
part cloud
cloud
clear
part cloud
clear
part cloud
cloud
cloud
rain showers
cloud
rain showers
clear
rain showers
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
6:33
6:35
6:35
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:01
8:00
7:58
7:54
7:52
7:51
7:49
 mm
2
2
1
2
1
2
Temp °C
18
19
18
18
18
19
16
17
16
14
15
16
19
23
18
17
16
16
16
16
15
Feels °C
13
15
14
16
15
12
10
12
12
15
14
15
15
20
17
11
9
8
9
9
8
  • 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 Mewslade Bay Surf forecast

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

Mewslade Bay is 25 km (16 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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