Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 12 am 25 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 25 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 4PM (local time) - 10ft (3.0m), 9s period, WSW swell with 1,202 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 3.0m 9s and forecast to arrive on Saturday (Aug 29) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 25) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Sat 29th Aug)10ft (3.0m) 9s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Wed night. Warm (max 22°C on Tue afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the E on Mon night, calm by Tue afternoon).

Days 4-6 Weather Summary

Moderate rain (total 17mm), heaviest on Sat morning. Very mild (max 19°C on Sat afternoon, min 16°C on Fri night). Winds increasing (light winds from the WSW on Thu night, strong winds from the WSW by Sun afternoon).

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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)
0.2
W
8
0.2
W
8
0.3
W
10
0.3
W
9
0.3
W
8
0.3
W
8
0.3
W
7
0.3
W
7
0.6
SW
7
1
SW
7
1.3
SW
6
1.3
WSW
7
1.6
SW
6
3
WSW
9
1.6
WSW
8
1.5
WSW
8
2.2
WSW
7
3
WSW
8
3
WSW
9
2.2
WSW
9
2
WSW
8
Wave Graph
Metric surfscale
Energy kJ
7
5
17
13
12
10
10
9
34
97
97
134
196
1202
328
240
499
984
1135
692
437
Wind (km/h)
30
E
15
ENE
20
ESE
15
SE
5
ESE
15
E
20
ESE
10
W
10
WSW
20
WSW
25
WSW
30
WSW
25
SSW
30
WSW
25
WSW
35
SSW
40
SW
45
W
35
WNW
40
W
30
WSW
Wind State
cross-off
cross-off
cross
cross-on
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross
cross
cross-on
cross-on
High Tide
5:25AM6.23m
5:45PM6.67m
6:06AM6.78m
6:23PM7.25m
6:42AM7.30m
6:58PM7.78m
7:15AM7.75m
7:31PM8.20m
7:48AM8.10m
8:03PM8.47m
8:20AM8.30m
8:36PM8.58m
8:54AM8.35m
9:11PM8.50m
Low Tide
11:36AM2.19m
00:01AM1.88m
12:15PM1.66m
00:37AM1.35m
12:49PM1.17m
1:10AM0.90m
1:21PM0.77m
1:41AM0.55m
1:52PM0.48m
2:11AM0.34m
2:22PM0.33m
2:42AM0.28m
2:54PM0.34m
3:14AM0.38m
part cloud
cloud
part cloud
part cloud
clear
rain showers
light rain
rain showers
part cloud
part cloud
clear
rain showers
rain showers
cloud
cloud
thunderstorm
thunderstorm
rain showers
part cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
6:22
6:22
6:24
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:17
8:15
8:13
8:10
8:08
8:07
 mm
2
4
1
1
11
3
2
1
2
1
Temp °C
20
22
20
19
22
20
18
19
17
18
18
17
18
19
17
17
17
16
16
17
17
Feels °C
17
19
20
19
22
19
16
18
16
15
15
14
15
14
12
11
10
7
9
11
12
  • 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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