Mewslade Bay surf break

Mewslade Bay surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 5 pm Wednesday 10 Dec 2025 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
10.9° C
(Which is normal 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 Friday (Dec 12) at 12AM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Mewslade Bay in the next 12 days are 4.5m 11s and forecast to arrive on Saturday (Dec 13) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 12th Dec)10ft (3.0m) 14s
Best Surf12AM (Fri 12th Dec)10ft (3.0m) 14s
Most Powerful 9PM (Sat 13th Dec)15ft (4.5m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 10mm), heaviest on Thu night. Very mild (max 12°C on Thu morning, min 9°C on Thu night). Winds increasing (light winds from the WSW on Thu night, near gales from the SSW by Sat morning).

Days 3-6 Weather Summary Heavy rain (total 32mm), heaviest during Sun afternoon. Very mild (max 13°C on Sun afternoon, min 7°C on Tue morning). Winds decreasing (near gales from the SW on Sat afternoon, light winds from the NNW by Mon night).

Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
!
3
0
0
0
0
0
0
0
!
2
1
4
4
4
1
0
Swell
Height Map
Wave Height (m) & direction (?)
3
WSW
2.4
WSW
2.5
SW
3
WSW
3
WSW
2.5
WSW
2.5
WSW
2.5
WSW
3.5
SW
4
WSW
4
WSW
3
WSW
4.5
WSW
3
WSW
2.5
WSW
2.2
WSW
1.9
WSW
1.8
WSW
1.7
WSW
1.7
WSW
2.2
SW
Period(s) (?)1215101214141817910121310131313131514146
Wave
Graph
(?)Metric surfscale
Energy kJ (?)21763071121025873220274946354128213026754095317238142593227815691255149212041004398
Wind
(km/h)
35
WSW
35
S
40
S
35
S
10
WSW
15
W
25
WSW
35
SSW
55
SSW
50
SW
35
WSW
25
SSW
50
SSW
20
WSW
15
SSW
15
SW
5
NNW
25
NNE
10
NW
20
WSW
40
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
ononcross-
on
ononcross-
off
offcross-
off
cross-
on
on
High Tide
/ height (m)
10:22PM
6.87
10:47AM
7.03
11:19PM
6.44
11:47AM
6.60
12:23AM
6.14
12:52PM
6.31
1:30AM
6.05
1:58PM
6.22
2:33AM
6.15
2:58PM
6.30
3:28AM
6.37
3:50PM
6.50
4:14AM
6.65
Low Tide
/ height (m)
4:11PM
1.48
4:30AM
1.82
5:10PM
1.91
5:30AM
2.22
6:13PM
2.23
6:37AM
2.46
7:18PM
2.38
7:44AM
2.53
8:19PM
2.37
8:45AM
2.43
9:13PM
2.24
9:38AM
2.22
10:01PM
2.04
10:24AM
1.95
Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Sunrise--8:11--8:12--8:14--8:15--8:15--8:15--8:17
Sunset4:07--4:07--4:07--4:07--4:07--4:07--4:07--
clear
clear
clear
rain showers
rain showers
part cloud
cloud
rain showers
light rain
light rain
rain showers
cloud
heavy rain
heavy rain
cloud
cloud
light rain
light rain
part cloud
part cloud
light rain
Rain (mm)
---14--1433-1112--21--1
Temp. °C1111121212111011121212121312111111891010
Feels °C (?)455566423368448794621
  • 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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