Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 12 am 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
19.5° 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 3 Aug 2026:

  • Most powerful swell: Wednesday 5 Aug, 10AM (local time) - 6.5ft (2.0m), 8s period, WSW swell with 515 kJ wave energy.

Best Forecast Surf Conditions for Mewslade Bay this week:

The most powerful waves expected at Mewslade Bay in the next 16 days are 2.0m 8s and forecast to arrive on Wednesday (Aug 05) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 03) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Wed 5th Aug)6.5ft (2.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it. Honestly, the next couple of weeks are looking pretty grim for a proper surf. The whole 16-day window is a bit of a write-off. We’ve got a long stretch of small, weak, and messy conditions, with only a sliver of hope right at the very end.

The first real bit of surf comes in on Monday, August 3rd, but it’s nothing to write home about. Mewslade Bay is seeing a tiny 3 ft swell from the WSW, but the wind is a messy cross-shore from the ESE at 16 mph, which is just going to chop it up. The combined energy is a weak 84, so there’s barely any push. It’s poor surf, plain and simple. Tuesday the 4th sees a bit more size at 4 ft from the SW, but it’s a short-period 7-second windswell, and the wind is blowing straight onshore at 16 mph. That’s a total washout.

Wednesday the 5th is the one that gets your heart pumping a little, but then reality kicks in. The swell jumps to 7 ft from the WSW, with a moderate combined energy of 519. That’s a serious amount of water. But the wind is a fresh 19 mph cross-shore, which is going to turn it into a white-knuckle, lumpy mess. For the average punter, this is a no-go; the size is teetering on expert-only territory. It’s not the day for a paddle.

After that, it’s a slow slide into tiny territory. From Thursday the 6th onward, the swell drops below 5 ft, and the energy fades into the double digits. There’s a brief moment on Sunday morning, August 9th, with clean conditions thanks to a light offshore breeze from the north, but the swell is a pathetic 1 ft. It’s flat, not surfable.

Then there’s a major gap. From the 10th of August right through to the 18th, we’re looking at near-flat conditions. The swell barely scratches 1 ft, and the energy is often in single digits. That’s over a week of nothing. The only thing worth noting is on Monday the 10th in the afternoon, where the wind goes glassy and calm, but it’s on a 1 ft, 6-second wave. It’s a lake, not a surf.

The only flicker of a genuine surfable wave is on the very last day, Tuesday, August 18th, in the morning. We’ve got clean conditions reported with a light cross-offshore breeze from the NNW, but the swell is a flat zero. The guidance says it’s a clean day, but there’s literally no wave to ride. It’s a cruel tease.

So, the bottom line is: there is no standout. The best on offer is the 7 ft on Wednesday the 5th, but it’s ruined by the wind. It’s actually more interesting for kite surfing than paddle surfing. The rest of the window is a blank run. The area is known for quiet spells, and this is one of them. Don’t bother driving. Keep the board in the car and wait for the next weather system.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon night. Warm (max 22°C on Sun night, min 16°C on Tue night). Winds increasing (light winds from the WSW on Mon night, fresh winds from the WSW by Tue night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Wed night, min 15°C on Wed night). Winds decreasing (fresh winds from the W on Wed night, calm by Thu night).

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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)
0.8
WSW
9
0.8
WSW
9
0.6
WSW
8
1.2
SW
7
1.1
SW
7
1.7
WSW
7
2
WSW
8
2
WSW
7
1.7
W
7
1.4
W
7
1
W
6
0.7
WSW
6
0.5
WSW
5
0.4
WSW
5
0.2
W
9
0.2
W
9
0.2
W
9
0.2
W
8
0.4
SW
8
0.4
SW
7
0.3
SW
7
Wave Graph
Metric surfscale
Energy kJ
84
84
45
156
132
266
515
415
286
176
76
31
15
8
6
6
6
6
17
14
7
Wind (km/h)
25
ESE
15
W
10
SSE
25
SSW
30
SW
35
WSW
30
W
30
W
30
WNW
25
WNW
20
W
5
WNW
10
SSW
20
WSW
15
W
20
W
25
W
10
NW
10
N
15
W
15
NNE
Wind State
cross
cross-on
cross-on
on
on
cross-on
cross
cross-on
cross
cross
cross-on
cross
on
cross-on
cross
cross-on
cross-on
cross-off
off
cross
off
High Tide
9:57AM7.77m
10:15PM7.93m
10:35AM7.56m
10:55PM7.62m
11:18AM7.25m
11:41PM7.22m
12:09PM6.87m
00:38AM6.78m
1:13PM6.52m
1:52AM6.45m
2:35PM6.38m
3:19AM6.43m
3:59PM6.64m
Low Tide
3:56PM0.90m
4:18AM0.96m
4:33PM1.13m
4:58AM1.24m
5:17PM1.45m
5:45AM1.61m
6:11PM1.84m
6:46AM2.01m
7:22PM2.17m
8:06AM2.27m
8:52PM2.25m
9:36AM2.19m
10:20PM1.94m
part cloud
part cloud
rain showers
part cloud
clear
rain showers
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
5:45
5:47
5:48
5:50
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:01
9:00
8:59
8:57
8:55
8:53
8:52
 mm
1
1
Temp °C
22
22
19
18
18
17
17
17
17
16
16
16
16
17
16
17
17
17
19
21
18
Feels °C
19
19
18
16
14
12
12
11
11
11
12
13
15
15
14
14
13
15
18
18
14
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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