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Surf Forecasts:

Crab Island surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 5 pm Tuesday 13 Jan 2026 GMT
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
7.1° C
 (Which is 2.6°C colder than average 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 (Jan 14) at 12AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.3m and 15s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Crab Island in the next 12 days are 2.0m 15s and forecast to arrive on Friday (Jan 16) at 6PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 14th Jan)4ft (1.2m) 11s
Best Surf 6PM (Thu 15th Jan)4ft (1.2m) 17s
Most Powerful 6PM (Fri 16th Jan)6.5ft (2.0m) 15s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 10mm), heaviest on Thu afternoon. Mild temperatures (max 9°C on Wed night, min 5°C on Tue night). Winds increasing (calm on Tue night, fresh winds from the S by Wed night).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Fri afternoon. Mild temperatures (max 9°C on Fri afternoon, min 5°C on Sat night). Wind will be generally light.

Tue
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
3
2
1
0
0
2
3
2
1
0
0
2
1
2
1
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
WSW
1.2
WSW
0.9
WSW
1
WSW
1.4
SW
1.5
WSW
1
WSW
1.6
WSW
1.5
WSW
1.7
WSW
2
WSW
1.6
WSW
1.4
WSW
1.1
WSW
0.8
WSW
0.6
WSW
0.5
WSW
0.4
WSW
0.3
WSW
0.8
WSW
0.8
WSW
Period(s) (?)1111101361018161616151413121111101018119
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6313131733311524376851360112113241785101765332814091583162158106
Wind
(km/h)
20
NNW
10
N
10
SE
20
SSW
30
SW
10
S
10
E
15
S
20
S
20
S
20
ESE
25
E
25
E
10
NE
10
ENE
10
NE
10
ENE
15
E
15
ESE
25
ESE
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
on		oncross-
on		oncrossonononcross-
on		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross
High Tide
/ height (m)
2:36AM
7.22
3:03PM
7.28
3:42AM
7.55
4:06PM
7.60
4:36AM
7.98
4:58PM
7.97
5:21AM
8.39
5:41PM
8.32
6:01AM
8.74
6:19PM
8.62
6:37AM
9.02
6:55PM
8.86
7:13AM
9.23
Low Tide
/ height (m)
8:10PM
3.45
8:43AM
3.37
9:19PM
3.27
9:47AM
3.08
10:17PM
2.93
10:40AM
2.71
11:05PM
2.56
11:25AM
2.34
11:45PM
2.23
12:05PM
2.02
12:21AM
1.96
12:42PM
1.75
12:56AM
1.73
Tue
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Sunrise--8:15--8:15--8:14--8:12--8:11--8:11--8:10
Sunset4:31--4:32--4:35--4:36--4:37--4:39--4:40--
cloud
clear
cloud
cloud
rain showers
light rain
light rain
rain showers
rain showers
light rain
rain showers
part cloud
cloud
part cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
Rain (mm)
----2232121----21----
Temp. °C865697778977876677764
Feels °C (?)32113444242223324331-3
  • 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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FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Crab Island at:
surf-forecast.com

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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