Mewslade Bay surf break

Mewslade Bay surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 11 pm Sunday 04 Jan 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Mewslade Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mewslade Bay sea temperature is
8.8° C
(Which is 1.2°C colder than average for this time of year)


Best Forecast Surf Conditions for Mewslade Bay this week:

The surf forecast for Mewslade Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 07) at 9PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 12s. Another secondary swell of 0.7m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mewslade Bay in the next 12 days are 4.0m 10s and forecast to arrive on Friday (Jan 09) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Friday (Jan 09) at 9PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 7th Jan)2.5ft (0.8m) 7s
Best Surf12AM (Sat 10th Jan)10ft (3.0m) 12s
Most Powerful 3AM (Fri 9th Jan)13ft (4.0m) 10s

Table - best surf conditions forecast for Mewslade Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Tue night. Mild temperatures (max 8°C on Tue afternoon, min 3°C on Sun night). Winds increasing (light winds from the NNE on Mon morning, strong winds from the SW by Tue afternoon).

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Thu afternoon. Very mild (max 10°C on Thu afternoon, min 4°C on Thu night). Winds increasing (calm on Wed night, severe gales from the SW by Thu night).

Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
!
3
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
WNW
0.2
W
0.2
W
0.3
WNW
0.7
WNW
1
W
1.3
W
1.2
W
1
W
1.2
W
1.4
WSW
1.1
WSW
4
WSW
3.5
W
3
W
3
W
1.6
WSW
1.4
WSW
1.1
WSW
2.5
SW
2.4
WSW
Period(s) (?)5121155477757810111212121110910
Wave
Graph
(?)Metric surfscale
Energy kJ (?)301110524381571389268208171269927642546221670547823711721169
Wind
(km/h)
25
NW
15
NNE
25
N
15
NNW
20
WNW
40
WSW
30
NW
25
NNW
15
WSW
35
NW
10
W
35
SSE
75
SW
70
NW
55
NW
35
NW
15
NNW
10
SE
45
SSE
55
SSW
40
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
crosscross-
on
cross-
off
cross-
off
cross-
on
cross-
off
crosscross-
on
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
oncross-
on
High Tide
/ height (m)
7:18AM
8.65
7:42PM
8.29
8:03AM
8.60
8:26PM
8.09
8:46AM
8.36
9:09PM
7.76
9:28AM
7.95
9:51PM
7.33
10:11AM
7.44
10:34PM
6.87
10:56AM
6.89
11:21PM
6.41
11:45AM
6.38
Low Tide
/ height (m)
1:04AM
0.40
1:32PM
0.25
1:48AM
0.42
2:17PM
0.38
2:31AM
0.61
2:59PM
0.66
3:13AM
0.93
3:42PM
1.06
3:55AM
1.35
4:24PM
1.52
4:39AM
1.81
5:10PM
1.99
5:28AM
2.26
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
Sunrise-8:22--8:21--8:21--8:21--8:19--8:19--8:18-
Sunset--4:22--4:22--4:24--4:25--4:27--4:29--4:30
part cloud
clear
clear
part cloud
cloud
light rain
rain showers
cloud
light rain
light rain
cloud
heavy rain
mod rain
light rain
cloud
part cloud
part cloud
cloud
heavy rain
rain showers
rain showers
Rain (mm)
-----15-21-13103----2051
Temp. °C4445787668810867666111210
Feels °C (?)-2-2-3-11-1-1-11730-9-7-6-523221
  • 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 12 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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