Crab Island surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 12 am Wednesday 16 Jul 2025 BST
Forecast update in hr  min  s Forecast update imminent
Crab Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Crab Island sea temperature is
19.8° C
(Which is 4.5°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Crab Island this week:

The surf forecast for Crab Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 16) at 4AM. The primary swell is predicted to be 1.9m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Crab Island in the next 12 days are 2.4m 8s and forecast to arrive on Monday (Jul 21) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 16th Jul)6ft (1.9m) 8s
Best Surf 4AM (Wed 16th Jul)6ft (1.9m) 8s
Most Powerful10AM (Mon 21st Jul)8ft (2.4m) 8s

Table - best surf conditions forecast for Crab Island over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sun
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
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 (?)
2.4
WSW
1.2
WSW
0.9
WSW
0.7
WSW
1.3
WSW
1.1
WSW
1
WSW
1.1
WSW
1.1
WSW
0.9
WSW
0.9
WSW
0.7
WSW
0.5
WSW
0.9
WSW
1
WSW
1.4
WSW
2.4
WSW
2.1
WSW
1.5
WSW
1
WSW
1.5
W
2.3
WSW
1.8
W
1.6
WSW
1.7
WSW
1.7
WSW
1.5
WSW
1.2
WSW
0.8
WSW
1
W
0.6
WSW
1.2
WSW
1.2
WSW
1.1
WSW
1.5
WSW
1.5
WSW
Period(s) (?)9887799889888788887668876871111101066988
Wave
Graph
(?)Metric surfscale
Energy (?)897197876517217615116416013194653581248284713481382149141708371225234336228376197433228225179247266300
Wind
(km/h)
30
W
5
WNW
15
WSW
20
SW
15
SW
15
WSW
5
SW
10
S
20
WSW
10
WNW
10
WSW
5
SSW
15
ENE
15
NW
30
W
20
WNW
30
WNW
30
W
15
WSW
15
WSW
20
WSW
15
S
20
NNW
25
W
10
WNW
0
SSE
5
SE
15
S
10
SW
20
WSW
10
W
15
WSW
20
WSW
15
W
20
SW
20
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
on
cross-
on
cross-
on
crosscross-
on
oncrosscross-
off
crossoncross-
off
cross-
off
crosscross-
off
cross-
off
crosscrosscrosscross-
on
onoffcrosscross-
off
glassglassoncross-
on
crosscrosscross-
on
crosscrosscross-
on
cross-
on
High Tide
/ height (m)
10:26PM
9.08
10:45AM
8.68
11:08PM
8.85
11:28AM
8.41
11:55PM
8.53
12:18PM
8.09
12:50AM
8.17
1:20PM
7.79
1:59AM
7.88
2:35PM
7.66
3:18AM
7.81
3:56PM
7.83
4:35AM
8.01
5:08PM
8.23
5:44AM
8.38
6:11PM
8.70
6:43AM
8.75
7:05PM
9.08
7:35AM
9.01
7:53PM
9.31
8:20AM
9.11
8:36PM
9.37
9:00AM
9.07
Low Tide
/ height (m)
4:30AM
1.54
4:42PM
1.79
5:13AM
1.76
5:27PM
2.06
6:00AM
2.08
6:21PM
2.38
6:59AM
2.42
7:30PM
2.67
8:11AM
2.67
8:51PM
2.76
9:31AM
2.67
10:11PM
2.57
10:46AM
2.42
11:24PM
2.20
11:52AM
2.05
12:27AM
1.80
12:49PM
1.71
1:22AM
1.50
1:38PM
1.49
2:09AM
1.34
2:20PM
1.39
2:50AM
1.32
2:57PM
1.42
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sun
27
Sunrise-5:16--5:16--5:18--5:20--5:20--5:22--5:24--5:24--5:26--5:28--5:28--5:31-
Sunset--9:25--9:24--9:23--9:22--9:22--9:21--9:19--9:17--9:16--9:15--9:14--9:12
part cloudpart cloudlight rainlight raincloudpart cloudpart cloudcloudpart cloudcloudcloudpart cloudrain showersrain showersrain showersmod rainpart cloudpart cloudclearcloudpart cloudrain showerscloudcloudpart cloudclearlight rainlight rainlight rainpart cloudpart cloudclearclearpart cloudlight rainpart cloud
Rain (mm)
--21--------1219-----3----131-----1-
Temp. °C161718171919181818161717171918161617161716181817161719181818171818161818
Feels °C (?)101516181918191715161716161513141212121613191512141618181915161515151515

Short Range Forecast: Light rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 19°C on Thu morning, min 14°C on Tue night). Winds decreasing (fresh winds from the W on Tue night, calm by Wed afternoon).

Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Sun night. Very mild (max 19°C on Sun morning, min 14°C on Sun night). Winds increasing (light winds from the W on Fri night, fresh winds from the WNW by Sun night).

Days 6-9 Weather Summary Light rain (total 4mm), mostly falling on Tue night. Very mild (max 19°C on Thu afternoon, min 14°C on Wed night). Wind will be generally light.

Long Range Forecast: Light rain (total 5mm), mostly falling on Thu night. Very mild (max 18°C on Thu night, min 15°C on Fri night). Wind will be generally light.

  • 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 Cross-shore wind has turned cross-on at Crab Island (moderate winds from the SW at Southgate wx 5 km from Crab Island). A 2.4m swell from the WSW

    Crab Island
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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 Crab Island 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 Crab Island Surf forecast

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

Crab Island is 8 km (5 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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