Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 12 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
20.2° C
4.2° 

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 31 Jul 2026:

  • Most powerful swell: Monday 3 Aug, 7AM (local time) - 2.5ft (0.7m), 9s period, WSW swell with 70 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 0.7m 9s and forecast to arrive on Monday (Aug 03) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Friday (Aug 07) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Mon 3rd Aug)2.5ft (0.7m) 9s

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


The Lowdown

Hey, Rusty here. Let's talk Mewslade Bay for the next couple of weeks. I'll be real – it's a rough outlook.

The whole 16-day stretch is mostly flat. From right now through the 15th of August, we've got nothing but poor surf on the cards. The wave energy is weak, barely hitting triple digits at its best – like that 67 (moderate) on the morning of the 3rd of August, but the quality is lousy. Most days, the energy is in the teens or thirties, which is just sad.

Mewslade Bay needs a proper SW swell, and we just aren't getting one. Swell heights are mostly under 2ft, and the periods are often short, under 8 seconds, so the waves are weak and messy. There's a tease on the 7th of August with a very long period groundswell from the SW at 12 seconds, but the height is a puny 0.3ft. Not enough to ride.

The cleanest moments come when the wind turns glassy or cross-off, like the mornings of the 4th and 6th of August (calm, glassy), and the afternoon of the 12th of August (glassy). But even then, the waves are only 2ft or 2ft – you'd be hunting for a ripple. Most of the time, the wind is cross or cross-onshore, chopping up what little swell we have.

We get a few mornings of NNE offshore wind, like the 7th of August, but there's no swell to go with it. There's no standout day here at all. Nothing clicks.

Into the second week, into mid-August, it's the same story: tiny, weak swells and messy wind. On the 13th and 14th of August, we get strong NNW cross-off winds – up to 18 to 22 mph – but the swell is down to 1ft or less. Clean, but microscopic. Honestly, this whole setup looks more interesting for kite surfing than paddle surfing, especially on those windy afternoons.

So, plain and simple: there are no good surf options in this 16-day window. The area is just not working. It's a dry spell, which happens around here, but keep an eye on it – forecasts can always turn around.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue morning. Warm (max 21°C on Mon afternoon, min 14°C on Mon night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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)
0.6
WNW
5
0.7
W
4
0.6
W
4
0.6
W
5
0.4
WSW
9
0.4
WSW
8
0.4
WSW
8
0.3
WSW
8
0.4
WSW
10
0.7
WSW
9
0.7
WSW
9
0.7
WSW
8
0.5
SW
8
0.5
SW
7
0.5
SW
7
0.7
SW
7
0.9
SW
6
0.7
SW
6
0.6
SW
6
0.4
SW
6
0.3
SW
6
Wave Graph
Metric surfscale
Energy kJ
19
13
12
20
27
24
22
12
37
67
65
59
30
27
26
44
56
37
23
12
6
Wind (km/h)
15
WNW
25
W
15
W
10
WNW
20
W
15
N
15
ESE
5
NNW
10
NE
15
SE
10
W
10
WNW
0
ENE
10
ESE
10
SW
10
SW
15
W
5
N
0
SSE
10
W
15
NNW
Wind State
cross
cross
cross
cross
cross
off
cross
cross-off
off
cross
cross-on
cross
glassy
cross
cross-on
cross-on
cross-on
off
glassy
cross
cross-off
High Tide
8:14AM7.70m
8:30PM8.07m
8:47AM7.83m
9:04PM8.16m
9:21AM7.85m
9:38PM8.11m
9:57AM7.77m
10:15PM7.93m
10:35AM7.56m
10:55PM7.62m
11:18AM7.25m
11:41PM7.22m
12:09PM6.87m
00:38AM6.78m
Low Tide
2:18PM0.86m
2:40AM0.78m
2:50PM0.77m
3:11AM0.73m
3:22PM0.78m
3:44AM0.79m
3:56PM0.90m
4:18AM0.96m
4:33PM1.13m
4:58AM1.24m
5:17PM1.45m
5:45AM1.61m
6:11PM1.84m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
mod rain
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:39
5:41
5:41
5:43
5:45
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:07
9:06
9:04
9:01
9:00
8:59
8:57
 mm
4
9
Temp °C
16
16
16
16
17
16
19
22
19
20
21
19
16
19
19
19
19
19
18
20
17
Feels °C
11
11
13
12
13
12
16
17
15
18
17
16
14
19
20
19
18
19
18
19
15
  • 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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