Mewslade Bay Surf Break

Mewslade Bay Surf Forecast and Surf Report

Lat Long: 51.56° N 4.29° W

Issued: 6 pm 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
18.6° C

4.4°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 28 Jun 2026:

  • Best quality surf: Wednesday 1 Jul, 4AM (local time) - 5.5ft (1.7m), 10s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 29 Jun, 1AM (local time) - 5.5ft (1.7m), 12s period, WSW swell with 780 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 1 Jul, 4AM (local time) - 5.5ft (1.7m), 10s 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 Wednesday (Jul 01) at 4AM. The primary swell is predicted to be 1.7m and 10s 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 1.7m 12s and forecast to arrive on Monday (Jun 29) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Saturday (Jul 04) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 1st Jul)5.5ft (1.7m) 10s
Best Surf 4AM (Wed 1st Jul)5.5ft (1.7m) 10s
Most Powerful 1AM (Mon 29th Jun)5.5ft (1.7m) 12s

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 16°C on Sun afternoon, min 14°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Thu afternoon, min 14°C on Wed afternoon). Winds decreasing (fresh winds from the SW on Wed night, light winds from the N by Thu night).

Sun
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
1
0
0
0
0
2
2
0
0
0
1
1
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
WSW
7
1.7
WSW
12
1.5
WSW
12
1.4
WSW
11
1.1
WSW
10
1.2
WSW
6
1.7
WSW
8
1.6
WSW
10
1.7
WSW
11
1.4
WSW
10
0.7
WSW
10
1.4
WSW
6
1.3
W
7
1
W
9
0.8
WSW
9
0.8
WSW
10
0.9
W
10
1.1
W
6
0.9
W
6
0.5
W
10
0.6
W
9
Wave Graph
Metric surfscale
Energy kJ
142
780
579
455
251
106
376
500
619
370
100
155
157
154
118
136
164
92
52
46
63
Wind (km/h)
25
WSW
20
W
15
W
15
WSW
10
SSW
25
SSW
20
SW
15
W
20
NW
25
W
25
SW
25
NW
20
NNW
10
NNW
10
WSW
20
W
25
WSW
15
WNW
20
W
10
NNW
10
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross
cross-off
cross-on
cross-on
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-on
High Tide
6:20PM6.97m
6:41AM6.96m
7:00PM7.22m
7:20AM7.16m
7:38PM7.43m
7:57AM7.30m
8:15PM7.58m
8:33AM7.36m
8:51PM7.65m
9:09AM7.36m
9:27PM7.64m
9:46AM7.30m
10:04PM7.56m
10:24AM7.19m
Low Tide
00:30AM1.69m
12:47PM1.62m
1:10AM1.48m
1:25PM1.43m
1:48AM1.32m
2:02PM1.29m
2:25AM1.24m
2:37PM1.23m
3:00AM1.22m
3:11PM1.24m
3:35AM1.26m
3:46PM1.31m
4:12AM1.34m
clear
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:03
5:03
5:03
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:37
9:37
9:37
9:37
9:37
9:37
9:36
9:36
 mm
Temp °C
16
15
15
15
15
16
16
16
16
16
15
16
18
17
14
16
15
16
19
18
18
Feels °C
11
12
13
13
14
12
13
14
14
12
11
11
15
15
13
13
12
13
16
15
17
Swell 1
Height (m)
Direction
Period (s)
0.2
W
12
1.7
WSW
12
1.5
WSW
12
1.4
WSW
11
1.1
WSW
10
1.2
WSW
6
1.6
WSW
10
1.7
WSW
11
0.7
WSW
10
0.5
W
9
1.3
W
7
1
W
9
0.8
WSW
9
0.8
WSW
10
0.9
W
10
0.5
W
10
0.9
W
6
0.5
W
5
0.6
W
9
Energy kJ
11
780
579
455
251
106
500
619
100
43
157
154
118
136
164
50
52
14
63
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
14
0.1
SW
13
0.4
WSW
10
0.7
W
6
0.3
WSW
10
0.5
W
10
0.5
W
10
Energy kJ
8
7
30
36
18
49
46
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
13
Energy kJ
7
Wind waves
Height (m)
Direction
Period (s)
1.3
WSW
7
1.7
WSW
8
1.4
WSW
10
0.8
WSW
6
1.4
WSW
6
1.3
W
7
0.3
WSW
3
1.1
W
6
Energy kJ
142
376
370
40
155
154
1
92
Nearest Offshore or Glassy
Rating
(10 max)
3
1
2
2
1
2
1
2
2
2
1
1
2
1
1
1
1
1
1
1
1
Distance (km)
311
127
1
104
6
365
192
1
1
322
124
1
0
0
139
124
117
6
138
0
90
Best forecast wave conditions in Wales - Gower
Rating
(10 max)
2
1
2
2
1
2
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
4
4
3
2
2
2
3
2
2
1
2
2
2
2
1
1
1
4
2
Header Global
Rating
(10 max)
9
7
5
5
5
5
5
5
5
5
8
6
5
5
6
7
5
5
9
9
9
  • 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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