Mewslade Bay Surf Break

Mewslade Bay Surf Forecast and Surf Report

Lat Long: 51.56° N 4.29° W

Issued: 12 pm 13 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
15.4° C

2.1°C warmer than normal for this time of year

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 13 Jun 2026:

  • Best quality surf: Sunday 14 Jun, 1AM (local time) - 2.5ft (0.8m), 11s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 18 Jun, 1AM (local time) - 4.5ft (1.3m), 10s period, WSW swell with 332 kJ wave energy.
  • Next surfable swell (1★+): Sunday 14 Jun, 1AM (local time) - 2.5ft (0.8m), 11s 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 Sunday (Jun 14) at 1AM. The primary swell is predicted to be 0.8m and 11s period. 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 1.3m 10s and forecast to arrive on Thursday (Jun 18) at 1AM. 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 Monday (Jun 15) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 14th Jun)2.5ft (0.8m) 11s
Best Surf 1AM (Sun 14th Jun)2.5ft (0.8m) 11s
Most Powerful 1AM (Thu 18th Jun)4.5ft (1.3m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 18°C on Mon morning, min 11°C on Sat night). Winds increasing (light winds from the W on Sun morning, fresh winds from the ESE by Mon morning).

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Very mild (max 17°C on Thu afternoon, min 14°C on Tue night). Winds decreasing (fresh winds from the SW on Tue night, light winds from the S by Thu night).

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
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
1
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)
0.7
W
11
1
W
11
0.8
WSW
11
0.7
W
10
0.6
W
10
0.5
W
10
0.4
WSW
9
0.4
WSW
10
0.5
W
10
0.5
W
9
0.7
WSW
11
0.8
WSW
10
1.4
WSW
6
1.5
WSW
7
1.3
WSW
10
1.1
SW
6
0.9
WSW
7
1
WSW
9
1.1
WSW
7
1.1
WSW
8
0.9
WSW
8
Wave Graph
Metric surfscale
Energy kJ
121
251
158
106
73
48
28
34
47
41
121
141
150
211
332
94
82
147
107
146
113
Wind (km/h)
20
WNW
20
W
15
WNW
10
N
10
WNW
15
ESE
30
ESE
25
SE
10
SW
15
SW
20
SW
20
S
25
SW
15
SSW
25
SSW
20
SSW
15
SW
15
S
20
SSW
10
W
10
WNW
Wind State
cross
cross
cross-off
off
cross
cross
cross
cross
on
on
on
on
cross-on
on
on
on
on
cross-on
on
cross-on
cross
High Tide
5:34PM7.77m
6:00AM7.98m
6:26PM8.18m
6:52AM8.26m
7:16PM8.47m
7:43AM8.39m
8:06PM8.61m
8:32AM8.34m
8:55PM8.58m
9:22AM8.14m
9:44PM8.37m
10:11AM7.80m
10:34PM8.02m
Low Tide
11:15AM1.00m
11:42PM0.85m
12:08PM0.69m
00:35AM0.50m
12:59PM0.47m
1:27AM0.29m
1:49PM0.38m
2:18AM0.24m
2:38PM0.44m
3:09AM0.36m
3:28PM0.63m
4:00AM0.63m
4:18PM0.95m
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
light rain
cloud
cloud
light rain
part cloud
clear
part cloud
light rain
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:58
4:58
4:58
4:58
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:35
9:35
9:36
9:36
9:37
9:37
9:37
 mm
3
1
5
2
3
Temp °C
12
13
13
15
16
15
18
18
14
15
15
15
14
15
15
16
17
16
14
14
13
Feels °C
8
9
10
13
14
13
13
14
12
13
12
13
10
14
13
14
16
16
12
13
12
Swell 1
Height (m)
Direction
Period (s)
1.1
W
6
0.6
W
11
0.8
WSW
11
0.7
W
10
0.6
W
10
0.5
W
10
0.4
WSW
9
0.4
WSW
10
0.5
W
10
0.5
W
9
0.7
WSW
11
0.8
WSW
10
0.6
WSW
10
0.6
WSW
10
1.3
WSW
10
0.7
WSW
9
0.9
WSW
7
1
WSW
9
0.6
W
8
0.9
WSW
8
Energy kJ
104
89
158
106
73
48
28
34
47
41
121
141
80
82
332
86
76
147
51
113
Swell 2
Height (m)
Direction
Period (s)
0.7
W
11
0.1
SW
16
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.3
WSW
11
0.1
SW
11
0.7
WSW
5
0.6
WSW
9
0.7
WSW
9
Energy kJ
121
9
8
7
7
7
7
25
5
22
65
82
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
SW
12
Energy kJ
10
6
Wind waves
Height (m)
Direction
Period (s)
1
W
11
0.6
ESE
3
0.6
SE
3
0.6
SW
4
0.5
SW
4
0.8
WSW
4
1.4
WSW
6
1.5
WSW
7
1.1
SW
6
1.1
WSW
7
1.1
WSW
8
Energy kJ
251
7
7
14
7
24
150
211
94
107
146
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
Distance (km)
31
44
0
0
1
4
322
46
172
6
124
38
64
62
49
49
104
38
0
0
1
Best forecast wave conditions in Wales - Gower
Rating
(10 max)
1
1
1
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
3
2
2
1
1
2
1
2
1
1
2
2
3
2
2
2
1
1
1
2
Header Global
Rating
(10 max)
5
5
5
4
5
4
5
5
5
5
4
4
4
5
7
5
9
5
5
5
5
  • 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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