Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 6 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
19.7°C
3.5° 

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 30 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 10PM (local time) - 2.5ft (0.7m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 4AM (local time) - 8ft (2.4m), 9s period, WSW swell with 921 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 10PM (local time) - 2.5ft (0.7m), 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 10PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 10s. 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 9s and forecast to arrive on Monday (Aug 31) at 4AM. 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+)10PM (Sat 5th Sep)2.5ft (0.7m) 7s
Best Surf10PM (Sat 5th Sep)2.5ft (0.7m) 7s
Most Powerful 4AM (Mon 31st Aug)8ft (2.4m) 9s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Sun night. Very mild (max 17°C on Sun afternoon, min 15°C on Sun night). Winds increasing (light winds from the W on Mon night, strong winds from the SSW by Wed morning).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 19°C on Thu night, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the WNW by Sat morning).

Sun
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SW
7
2.3
WSW
8
2.2
W
9
2
WSW
10
1.3
WSW
10
0.9
WSW
9
0.9
WSW
8
0.9
SW
5
1.9
SW
6
1.9
WSW
7
2
WSW
7
1.6
WSW
8
1.5
WSW
8
1.7
WSW
6
2.2
WSW
8
1.8
WSW
8
1.6
W
7
1.2
W
7
0.8
WSW
6
0.6
WSW
10
Wave Graph
Metric surfscale
Energy kJ
322
731
840
698
322
137
105
32
252
369
394
283
270
220
540
395
243
124
53
71
Wind (km/h)
35
SW
25
W
30
NW
25
WNW
20
W
20
WSW
20
WSW
20
SW
40
SSW
30
SW
35
SW
25
WSW
25
SW
45
SW
35
W
35
W
30
NW
20
NW
20
WNW
5
N
Wind State
on
cross-on
cross-off
cross
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
glassy
High Tide
8:36PM8.58m
8:54AM8.35m
9:11PM8.50m
9:30AM8.21m
9:48PM8.23m
10:08AM7.90m
10:28PM7.78m
10:51AM7.44m
11:16PM7.20m
11:43AM6.88m
00:16AM6.58m
12:52PM6.37m
1:38AM6.14m
Low Tide
2:42AM0.28m
2:54PM0.34m
3:14AM0.38m
3:28PM0.51m
3:49AM0.66m
4:06PM0.85m
4:28AM1.10m
4:49PM1.33m
5:16AM1.67m
5:45PM1.90m
6:20AM2.24m
7:06PM2.39m
thunderstorm
thunderstorm
cloud
cloud
part cloud
clear
cloud
rain showers
light rain
rain showers
light rain
clear
clear
light rain
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:28
6:30
6:31
6:33
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:07
8:04
8:01
8:00
7:58
7:54
 mm
6
8
1
2
1
1
1
Temp °C
17
17
15
16
17
17
17
17
17
18
18
18
18
19
16
17
17
15
15
15
Feels °C
12
11
10
11
13
14
14
15
11
15
14
15
15
13
10
11
12
11
11
13
  • 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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