Mewslade Bay surf break

Mewslade Bay surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 12 am Friday 19 Sep 2025 BST
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
17.3° C
(Which is 1.7°C warmer than 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 Saturday (Sep 20) at 1PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.1m and 15s. 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 2.0m 9s and forecast to arrive on Friday (Sep 19) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Sep 20) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 20th Sep)3.5ft (1.1m) 9s
Best Surf 1PM (Sat 20th Sep)3.5ft (1.1m) 9s
Most Powerful 7AM (Fri 19th Sep)6.5ft (2.0m) 9s

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 Sat afternoon. Very mild (max 17°C on Thu night, min 10°C on Sun morning). Mainly strong winds.

Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Wed afternoon, min 9°C on Mon night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thu
25
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
2
WSW
1.9
WSW
1.5
WSW
1.5
WSW
1.2
WSW
1
WSW
0.8
WSW
0.8
WSW
0.6
WSW
0.2
WSW
0.2
W
0.2
W
0.1
SW
0.1
W
0.1
W
0.3
WSW
0.4
WSW
0.6
W
0.6
W
0.6
W
0.6
W
Period(s) (?)9101099998879813151312111110109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)623638428362227151887651777663294185736760
Wind
(km/h)
30
SSW
25
S
20
SSW
20
S
20
SSW
40
NW
20
NNW
30
NE
20
NNE
20
NNE
20
NE
15
NE
15
NE
10
NE
10
N
15
NE
15
NE
10
NE
15
NNE
10
NNE
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
onononcross-
off
cross-
off
offoffoffoffoffoffoffoffoffoffcross-
off
offoffoff
High Tide
/ height (m)
5:27AM
6.88
5:47PM
7.39
6:10AM
7.39
6:27PM
7.86
6:46AM
7.80
7:02PM
8.19
7:19AM
8.08
7:34PM
8.36
7:50AM
8.21
8:05PM
8.36
8:20AM
8.18
8:35PM
8.20
8:50AM
8.01
Low Tide
/ height (m)
11:24PM
1.71
11:42AM
1.61
12:07AM
1.22
12:21PM
1.14
12:42AM
0.82
12:54PM
0.78
1:13AM
0.56
1:24PM
0.55
1:42AM
0.43
1:53PM
0.45
2:10AM
0.45
2:22PM
0.51
2:37AM
0.62
2:50PM
0.71
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thu
25
Sunrise-6:56--6:58--7:00--7:01--7:03--7:05--7:07-
Sunset--7:22--7:21--7:19--7:15--7:14--7:12--7:08
part cloud
part cloud
cloud
light rain
light rain
rain showers
part cloud
light rain
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
---234-1-------------
Temp. °C171717171613131114121214121215131416141515
Feels °C (?)13151516145858679791191113101313
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Gower

  1. weather stationWind Update Continuing clean conditions at Mewslade Bay (calm at Rhossili wx 1 km from Mewslade Bay). 1.5m 9s swell from the WSW with a 1.0m 9s swell from the SW. 2 swells combining to make bigger set waves.

    Mewslade Bay
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1 h 54 min ago

3 km/h
NW
Clean
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mewslade Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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