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Surf Forecasts:

Crab Island surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 11 am Tuesday 17 Feb 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
8.2° C
 (Which is slightly cooler than normal)

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 Thursday (Feb 19) at 3AM. The primary swell is predicted to be 1.6m and 12s period. 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 2.5m 18s and forecast to arrive on Saturday (Feb 21) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Feb 18) at 6PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 19th Feb)5ft (1.6m) 12s
Best Surf 3PM (Thu 19th Feb)10ft (3.0m) 13s
Most Powerful 6AM (Sat 21st Feb)8ft (2.5m) 18s

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 Heavy rain (total 22mm), heaviest during Wed afternoon. Mild temperatures (max 9°C on Thu night, min 3°C on Tue night). Winds increasing (calm on Tue morning, near gales from the ESE by Tue night).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 11°C on Sat afternoon, min 9°C on Sat morning). Mainly strong winds.

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
0
0
0
0
2
2
!
2
0
0
0
0
0
0
0
1
0
1
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
WSW
1.5
WSW
1.1
WSW
0.9
WSW
1.2
WSW
1.6
WSW
2.5
WSW
3
WSW
2.1
WSW
2.1
WSW
2.5
WSW
3
WSW
2.5
WSW
2.5
WSW
2.5
WSW
3
WSW
2.5
WSW
2.4
WSW
1.3
WSW
1.8
WSW
1.4
WSW
Period(s) (?)13131211111214131111810181616101213131413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)109468832219033472523832634107295295315323747398234801527214219355471214663
Wind
(km/h)
5
NNW
20
ESE
45
ESE
45
ESE
50
E
15
ENE
25
NW
35
WNW
20
W
40
SW
40
SW
35
SW
35
WSW
35
SW
35
SW
40
SW
30
W
35
W
30
W
20
WSW
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on		crosscrosscrosscross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscrosscross-
on
High Tide
/ height (m)
6:37PM
9.11
6:54AM
9.51
7:11PM
9.38
7:29AM
9.72
7:45PM
9.51
8:04AM
9.77
8:19PM
9.49
8:38AM
9.63
8:52PM
9.29
9:12AM
9.31
9:27PM
8.93
9:50AM
8.82
10:07PM
8.42
Low Tide
/ height (m)
12:24PM
1.40
12:39AM
1.36
12:59PM
1.09
1:12AM
1.12
1:33PM
0.91
1:44AM
1.01
2:06PM
0.89
2:16AM
1.06
2:38PM
1.05
2:49AM
1.27
3:11PM
1.39
3:23AM
1.65
3:48PM
1.88
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise7:26--7:24--7:22--7:20--7:18--7:16--7:15--
Sunset-5:32--5:35--5:37--5:38--5:39--5:42--5:44-
cloud
cloud
light rain
cloud
heavy rain
light rain
cloud
part cloud
part cloud
cloud
light rain
part cloud
cloud
part cloud
part cloud
cloud
light rain
rain showers
clear
part cloud
part cloud
Rain (mm)
--3-145----1-----41---
Temp. °C564557679101010101110101010998
Feels °C (?)21-6-5-63-1-24223454242256
  • 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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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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