Mewslade Bay Surf Break

Mewslade Bay Surf Forecast and Surf Report

Lat Long: 51.56° N 4.29° W

Issued: 12 pm 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mewslade Bay sea temperature is
19.4° C

4.6°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 5 Jul 2026:

  • Most powerful swell: Monday 6 Jul, 4AM (local time) - 2ft (0.6m), 9s period, W swell with 56 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 0.6m 9s and forecast to arrive on Monday (Jul 06) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Jul 11) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Mon 6th Jul)2ft (0.6m) 9s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let’s have a look at what’s in store for Mewslade Bay.

To be straight with you, the next couple of weeks are looking pretty quiet. We’ve got a long stretch of barely any surf to start with, and it’s not until Tuesday the 14th of July that we see anything even close to surfable. That’s about a week and a half of waiting, with waves mostly under 2 ft and a whole lot of cross-shore or onshore wind messing things up. It’s a tough run.

Wednesday the 8th does have a glassy morning, but with only 1 ft on offer, you’re not going anywhere.

The first real glimmer of hope shows up on Tuesday morning the 14th. We’ve got a light breeze, clean conditions, and a little 2 ft swell from the west with a period of 11 seconds. The wave energy is still weak (69), so it’s small, but it’s clean and the period is long enough to give some shape. Mewslade Bay is an exposed spot, so it catches whatever’s out there. This is the only window in the forecast where you’d get a wave worth paddling for.

Then we get a bit of a bump on Sunday the 19th and Monday the 20th, with bigger swell – 5 ft to 6 ft – pushing in from the southwest. Combined energy climbs to over 300 (strong), so there’s some grunt there. But the wind is all over it – Sunday has cross-onshore chop, and while Monday morning cleans up with a fresh offshore from the northwest at 30 km/h (19 mph), the swell is still carrying that short period (5-7 seconds) which means crumbly, weak waves. The height and energy will get your heart rate up, but the quality is poor. For a beach break like Mewslade Bay, a long period groundswell wouldn’t be ideal here anyway, but we’re not even getting that.

The standout is Tuesday morning, the 14th. It’s the only time where conditions line up for a proper session. You’ll be surfing solo, too – it’s just a small, clean wave for the patient surfer.

Don’t hold your breath for the big stuff. This stretch looks more like time for a gear check or a long walk on the cliffs.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue afternoon, min 15°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 31°C on Fri afternoon, min 19°C on Wed morning). Wind will be generally light.

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
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)
0.8
WSW
6
0.4
WSW
9
0.4
WSW
9
0.3
W
9
0.6
W
5
0.4
WSW
8
0.4
WSW
9
0.4
WSW
9
0.3
W
8
0.3
W
8
0.4
W
8
0.3
W
10
0.3
W
10
0.3
W
9
0.3
W
9
0.5
W
9
0.6
W
9
0.5
W
8
0.4
WSW
8
0.4
WSW
8
0.3
WSW
8
Wave Graph
Metric surfscale
Energy kJ
46
29
26
14
18
24
26
25
12
12
23
17
16
15
15
42
56
34
21
21
13
Wind (km/h)
15
W
20
WSW
10
W
15
WSW
20
WSW
10
WSW
10
W
20
WSW
5
WNW
5
SW
15
WNW
10
N
10
ESE
10
N
10
ENE
5
ESE
5
E
15
ENE
10
NNW
20
NNW
20
NNW
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
glassy
cross
cross-off
cross
off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:24AM7.19m
10:43PM7.42m
11:05AM7.04m
11:26PM7.23m
11:51AM6.87m
00:15AM7.02m
12:45PM6.70m
1:13AM6.82m
1:49PM6.60m
2:21AM6.73m
3:00PM6.67m
3:35AM6.84m
4:12PM6.95m
Low Tide
4:23PM1.43m
4:50AM1.46m
5:04PM1.60m
5:34AM1.61m
5:52PM1.78m
6:26AM1.77m
6:49PM1.95m
7:27AM1.90m
7:57PM2.03m
8:37AM1.92m
9:11PM1.93m
9:49AM1.77m
10:24PM1.63m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
5:09
5:09
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:36
9:35
9:35
9:34
9:32
9:32
9:31
 mm
Temp °C
17
17
15
17
18
17
18
20
20
20
23
22
24
28
25
27
31
23
24
24
20
Feels °C
15
15
14
15
16
16
16
17
19
20
23
22
25
27
24
26
30
21
23
21
18
Swell 1
Height (m)
Direction
Period (s)
0.8
WSW
6
0.4
WSW
9
0.4
WSW
9
0.3
W
9
0.3
W
8
0.4
WSW
4
0.4
W
5
0.4
WSW
9
0.3
W
8
0.3
W
8
0.4
W
8
0.3
W
10
0.3
W
10
0.3
W
9
0.3
W
9
0.5
W
9
0.6
W
9
0.5
W
8
0.4
WSW
8
0.4
WSW
8
0.4
NW
5
Energy kJ
46
26
26
13
12
6
7
25
12
12
23
17
16
15
15
42
56
34
21
21
7
Swell 2
Height (m)
Direction
Period (s)
0.4
WSW
9
0.1
W
14
0.1
W
14
0.4
WSW
8
0.4
WSW
9
0.1
SW
12
0.3
W
4
0.2
W
4
0.3
NW
3
0.2
E
3
0.3
WNW
4
0.3
WNW
4
0.3
WSW
8
Energy kJ
28
4
4
24
26
6
3
1
2
1
4
4
13
Swell 3
Height (m)
Direction
Period (s)
0.1
W
11
0.1
W
10
0.1
W
17
Energy kJ
2
2
6
Wind waves
Height (m)
Direction
Period (s)
0.7
WSW
5
0.4
WSW
4
0.5
W
5
0.6
W
5
0.4
WSW
4
0.2
WNW
4
0.5
N
4
0.6
WNW
3
0.8
N
4
Energy kJ
29
7
14
18
6
1
7
8
24
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
1
139
113
172
172
118
181
195
78
64
180
78
64
81
64
4
4
4
260
274
252
Best forecast wave conditions in Wales - Gower
Rating
(10 max)
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
1
1
1
1
3
2
1
1
1
2
2
2
1
1
1
1
1
2
1
Header Global
Rating
(10 max)
7
6
5
8
7
5
5
9
8
9
6
7
8
8
6
9
6
4
9
7
7
  • 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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