Swansea Bay Harbour Wall surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 5 pm Friday 19 Dec 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Today's Swansea Bay Harbour Wall sea temperature is
9.8° C
(Which is 1.1°C colder than average for this time of year)


Best Forecast Surf Conditions for Swansea Bay Harbour Wall this week:

The most powerful waves expected at Swansea Bay Harbour Wall in the next 12 days are 0.4m 16s and forecast to arrive on Sunday (Dec 21) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Wednesday (Dec 24) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6AM (Sun 21st Dec)1.5ft (0.4m) 16s

Table - best surf conditions forecast for Swansea Bay Harbour Wall over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 11mm), heaviest on Sun night. Very mild (max 10°C on Fri afternoon, min 7°C on Sun morning). Winds decreasing (strong winds from the ESE on Sat afternoon, light winds from the NW by Mon morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 10°C on Tue afternoon, min 1°C on Wed night). Winds increasing (calm on Mon afternoon, fresh winds from the E by Wed night).

Fri
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
Wave Height (m) & direction (?)
0.5
W
0.4
WSW
0.2
WSW
0.4
SW
0.4
SW
0.4
WSW
0.4
WSW
0.3
WSW
0.2
WSW
0.2
WSW
0.2
WSW
0.2
WSW
0.2
WSW
0.1
SW
0.1
W
0.2
WSW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
Period(s) (?)161513101215151413121211141312121211101012
Wave
Graph
(?)Metric surfscale
Energy kJ (?)144841727349285411715131118631332223
Wind
(km/h)
25
SW
20
S
30
SE
35
SE
20
SSE
15
E
15
ENE
10
NNE
10
NW
5
NNW
5
NNW
5
NNW
10
N
10
NNE
20
ENE
25
ENE
30
E
25
ENE
30
ENE
35
ENE
30
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
cross-
on
oncrosscross-
off
offcross-
off
cross-
off
glasscross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
6:02PM
8.43
6:20AM
8.66
6:38PM
8.59
6:55AM
8.81
7:14PM
8.68
7:30AM
8.88
7:49PM
8.69
8:07AM
8.87
8:27PM
8.64
8:44AM
8.80
9:06PM
8.52
9:25AM
8.66
9:48PM
8.34
10:10AM
8.48
Low Tide
/ height (m)
12:02AM
2.08
12:23PM
1.97
12:37AM
1.94
12:58PM
1.85
1:13AM
1.87
1:34PM
1.80
1:48AM
1.87
2:10PM
1.83
2:25AM
1.95
2:48PM
1.93
3:04AM
2.08
3:30PM
2.09
3:48AM
2.26
Fri
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Sunrise--8:18--8:18--8:18--8:19--8:19--8:19--8:21
Sunset4:07--4:07--4:07--4:07--4:07--4:08--4:09--
rain showers
clear
clear
cloud
light rain
cloud
cloud
mod rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
Rain (mm)
1---2--8-------------
Temp. °C10999989999991096523323
Feels °C (?)451134677777860-2-6-5-5-6-5
  • 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

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Information about the Swansea Bay Harbour Wall Surf forecast

The above surf forecast table for Swansea Bay Harbour Wall provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Swansea Bay Harbour Wall can be found by selecting the local surf guide option on the grey menu. Our Swansea Bay Harbour Wall 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 (Swansea Bay Harbour Wall) 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 Swansea Bay Harbour Wall 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.

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