Mewslade Bay Surf Break

Lat Long: 51.56° N 4.29° W

Mewslade Bay Surf Forecast and Surf Report

Issued: 6 am 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
17.8°C
2.7° 

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 Sep 2026:

  • Best quality surf: Monday 28 Sep, 10AM (local time) - 3ft (0.9m), 8s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 30 Sep, 4PM (local time) - 8ft (2.5m), 11s period, SW swell with 1,547 kJ wave energy.
  • Next surfable swell (1★+): Monday 28 Sep, 10AM (local time) - 3ft (0.9m), 8s 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 Monday (Sep 28) at 10AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.6m and 7s. 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 2.5m 11s and forecast to arrive on Wednesday (Sep 30) at 4PM. Winds are predicted to be 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 (Sep 29) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Mon 28th Sep)3ft (0.9m) 8s
Best Surf10AM (Mon 28th Sep)3ft (0.9m) 8s
Most Powerful 4PM (Wed 30th Sep)8ft (2.5m) 11s

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


Short Range Forecast

Heavy rain (total 33mm), heaviest during Tue night. Warm (max 20°C on Tue afternoon, min 13°C on Mon night). Winds increasing (light winds from the ENE on Mon morning, strong winds from the SSW by Wed morning).

Days 4-6 Weather Summary

Some drizzle, heaviest during Fri afternoon. Very mild (max 16°C on Thu afternoon, min 15°C on Thu morning). Winds decreasing (fresh winds from the SSW on Fri morning, calm by Sat night).

Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
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)
0.9
WSW
8
0.9
WSW
7
0.7
WSW
10
0.5
W
10
0.9
SE
4
1.7
S
5
2.2
SW
11
2.5
SW
11
2.1
SW
11
1.9
WSW
11
1.9
WSW
12
1.5
WSW
10
1.8
SW
9
1.7
WSW
9
1.3
WSW
9
1.1
WSW
9
0.9
WSW
9
0.7
WSW
9
0.4
WSW
7
0.4
WSW
7
0.4
WSW
7
Wave Graph
Metric surfscale
Energy kJ
109
94
108
48
29
164
1130
1547
1047
878
1002
411
528
444
274
188
116
80
17
15
17
Wind (km/h)
5
ENE
10
ESE
30
ESE
40
ESE
25
ESE
45
SSE
35
S
30
SW
20
SW
20
W
25
SW
30
SSW
30
SSW
25
SW
20
SSW
15
S
5
SW
5
N
5
NE
10
WNW
5
NW
Wind State
cross-off
cross
cross
cross
cross
cross-on
on
on
on
cross-on
on
on
on
on
on
on
on
glassy
glassy
cross
cross-off
High Tide
8:09PM8.79m
8:28AM8.65m
8:47PM8.66m
9:06AM8.46m
9:26PM8.30m
9:47AM8.06m
10:10PM7.75m
10:33AM7.50m
11:01PM7.07m
11:29AM6.87m
00:07AM6.42m
12:45PM6.36m
1:35AM6.03m
Low Tide
1:54PM0.06m
2:13AM0.03m
2:29PM0.09m
2:48AM0.21m
3:06PM0.32m
3:25AM0.59m
3:47PM0.76m
4:08AM1.14m
4:35PM1.35m
5:00AM1.79m
5:38PM2.00m
6:13AM2.39m
7:11PM2.45m
part cloud
clear
part cloud
cloud
rain showers
rain showers
rain showers
rain showers
thunderstorm
part cloud
clear
part cloud
cloud
light rain
part cloud
part cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
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7:13
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7:15
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7:16
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7:18
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7:20
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7:20
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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7:02
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7:00
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6:58
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6:55
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6:52
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6:51
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6:49
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 mm
—
—
—
—
3
22
1
3
4
—
—
—
—
1
—
—
—
—
—
—
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Temp °C
15
17
15
17
20
19
16
16
15
15
16
15
16
16
16
15
16
16
16
17
16
Feels °C
14
14
11
12
17
15
10
11
12
11
12
10
12
12
14
14
16
17
16
16
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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