Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 6 am 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
20.5°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 22 Aug 2026:

  • Best quality surf: Friday 28 Aug, 10PM (local time) - 5.5ft (1.7m), 7s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 4PM (local time) - 6ft (1.8m), 8s period, W swell with 388 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 7AM (local time) - 2.5ft (0.8m), 7s period with SSW 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 Thursday (Aug 27) at 7AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.3m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mewslade Bay in the next 16 days are 1.8m 8s and forecast to arrive on Friday (Aug 28) at 4PM. Winds are predicted to be cross-offshore 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 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 27th Aug)2.5ft (0.8m) 7s
Best Surf10PM (Fri 28th Aug)5.5ft (1.7m) 7s
Most Powerful 4PM (Fri 28th Aug)6ft (1.8m) 8s

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


Short Range Forecast

Mostly dry. Warm (max 22°C on Mon afternoon, min 14°C on Sat morning). Winds increasing (calm on Sat morning, fresh winds from the E by Mon night).

Days 4-6 Weather Summary

Heavy rain (total 71mm), heaviest during Thu morning. Warm (max 21°C on Tue afternoon, min 15°C on Wed night). Winds increasing (calm on Wed afternoon, strong winds from the SSE by Thu night).

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
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
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
WSW
10
0.3
WSW
10
0.3
WSW
9
0.2
W
9
0.2
WSW
14
0.4
SW
10
0.3
SW
9
0.2
W
9
0.2
W
9
0.2
W
8
0.2
SSW
8
0.3
SW
8
0.3
W
9
0.3
W
8
0.4
SW
7
1.4
SW
6
1.6
SW
8
1.4
SW
8
1.5
SW
7
1.8
W
8
1.9
W
7
Wave Graph
Metric surfscale
Energy kJ
31
18
16
8
18
25
14
7
7
7
7
10
13
12
12
114
316
236
206
388
361
Wind (km/h)
10
NNE
15
W
15
NNE
10
E
5
NNW
10
ESE
35
E
20
E
30
E
35
E
25
ESE
20
SE
15
SE
5
SW
10
ESE
30
SSW
20
SSW
40
S
30
E
25
NNW
25
WNW
Wind State
off
cross-on
off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
glassy
cross
on
on
cross-on
cross-off
cross-off
cross-off
High Tide
2:16PM5.50m
3:07AM5.42m
3:51PM5.63m
4:30AM5.72m
4:59PM6.09m
5:25AM6.23m
5:45PM6.67m
6:06AM6.78m
6:23PM7.25m
6:42AM7.30m
6:58PM7.78m
7:15AM7.75m
7:31PM8.20m
Low Tide
8:44PM3.11m
9:29AM3.09m
10:16PM2.89m
10:45AM2.71m
11:17PM2.42m
11:36AM2.19m
00:01AM1.88m
12:15PM1.66m
00:37AM1.35m
12:49PM1.17m
1:10AM0.90m
1:21PM0.77m
1:41AM0.55m
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
light rain
rain showers
part cloud
part cloud
heavy rain
heavy rain
mod rain
heavy rain
light rain
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
6:15
6:16
6:18
6:20
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:25
8:23
8:22
8:20
8:17
8:15
8:13
 mm
1
1
17
22
6
24
3
Temp °C
16
18
15
18
21
19
20
22
20
18
21
18
19
20
19
17
17
17
17
18
17
Feels °C
15
14
11
17
18
15
15
18
14
13
17
16
18
20
18
14
14
11
13
14
16
  • 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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