Mewslade Bay surf break

Mewslade Bay surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 11 pm Friday 09 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
8.3° C
(Which is 1.5°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 Saturday (Jan 10) at 6AM. The primary swell is predicted to be 2.1m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mewslade Bay in the next 12 days are 3.5m 12s and forecast to arrive on Friday (Jan 16) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Saturday (Jan 10) at 9AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 10th Jan)7ft (2.1m) 12s
Best Surf 3AM (Tue 13th Jan)10ft (3.0m) 11s
Most Powerful 9PM (Fri 16th Jan)11ft (3.5m) 12s

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 9mm), mostly falling on Sun afternoon. Very mild (max 12°C on Sun afternoon, min 5°C on Fri night). Winds increasing (calm on Sat morning, near gales from the SSW by Sun afternoon).

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Wed afternoon. Very mild (max 10°C on Mon night, min 6°C on Tue afternoon). Winds increasing (light winds from the SE on Mon night, strong winds from the ESE by Thu afternoon).

Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Fri
16
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
4
2
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.3
WSW
2
WSW
1.6
WSW
1.2
WSW
1.6
WSW
2.4
SW
3
SW
3
WSW
3
WSW
2.5
WSW
2.2
WSW
1.8
WSW
1.3
WSW
1.1
SW
0.5
WSW
1.5
SW
1.8
WSW
2.3
WSW
1.9
WSW
1.1
WSW
1
W
Period(s) (?)121211108910111111111111101361217171615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)158110845933103109631792250425941752122079938725310117790731422089620503
Wind
(km/h)
15
NW
15
NNW
5
S
30
SSE
45
SSE
45
S
45
SW
40
SW
30
SW
25
S
20
SSE
35
NW
30
WNW
25
SW
45
SSW
30
WSW
20
SSW
35
SE
45
SE
65
S
60
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
oncross-
on
cross-
on
cross-
on
ononcross-
on
oncross-
on
cross-
off
crossononcross-
on
oncrosscrosscross-
on
cross-
on
High Tide
/ height (m)
10:34PM
6.87
10:56AM
6.89
11:21PM
6.41
11:45AM
6.38
12:16AM
6.03
12:45PM
5.97
1:22AM
5.80
1:57PM
5.79
2:36AM
5.81
3:10PM
5.87
3:43AM
6.06
4:11PM
6.16
4:36AM
6.44
4:59PM
6.55
Low Tide
/ height (m)
4:39AM
1.81
5:10PM
1.99
5:28AM
2.26
6:01PM
2.40
6:27AM
2.62
7:04PM
2.69
7:38AM
2.81
8:15PM
2.78
8:52AM
2.76
9:24PM
2.64
9:57AM
2.50
10:22PM
2.33
10:50AM
2.13
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Fri
16
Sunrise-8:19--8:18--8:18--8:18--8:17--8:15--8:15-
Sunset--4:29--4:30--4:30--4:32--4:34--4:36--4:37
clear
clear
part cloud
cloud
light rain
light rain
light rain
rain showers
light rain
rain showers
light rain
rain showers
part cloud
cloud
rain showers
rain showers
part cloud
light rain
rain showers
light rain
light rain
Rain (mm)
----22122152--64-21414
Temp. °C6578101211101010978999891099
Feels °C (?)-103-12232445-1111131-1-5-4
  • 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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