Crab Island surfForecast / Wales – Gower / UK

information circle16 Day Weather and Surf, issued 12 am Saturday 23 May 2026 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
13.2° C
(Which is 1.6°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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 23) at 7PM. The primary swell is predicted to be 0.9m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Crab Island in the next 16 days are 1.1m 10s and forecast to arrive on Saturday (May 23) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 23rd May)3ft (0.9m) 10s
Best Surf 7PM (Sat 23rd May)3ft (0.9m) 10s
Most Powerful10AM (Sat 23rd May)3.5ft (1.1m) 10s

Table - best surf conditions forecast for Crab Island over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon afternoon, min 13°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Tue afternoon, min 15°C on Tue night). Winds increasing (light winds from the E on Mon night, fresh winds from the ESE by Wed morning).

Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WSW
10
1
WSW
10
0.9
WSW
10
0.7
WSW
9
0.6
WSW
9
0.7
WSW
9
0.6
WSW
9
0.6
W
9
0.5
W
8
0.3
WSW
13
0.5
W
12
0.4
WSW
11
0.4
WSW
11
0.3
WSW
10
0.3
W
10
0.2
W
10
0.2
W
9
0.2
W
9
0.2
WSW
6
0.1
SW
16
0.3
WSW
14
Wave Graph
Metric surfscale
Energy kJ
227
183
132
84
62
86
62
54
31
34
75
43
39
21
17
10
10
10
3
9
39
Wind (km/h)
5
WSW
15
W
5
NNW
0
SE
0
SSE
10
ENE
15
ESE
10
SE
10
E
15
ESE
15
SE
25
E
30
ESE
25
ESE
25
ESE
30
ESE
15
SE
10
WSW
5
WSW
15
WSW
5
WNW
cross
cross
cross-off
glassy
glassy
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross-on
cross
cross-off
High Tide
12:28PM7.83m
00:56AM7.98m
1:36PM7.63m
2:05AM7.87m
2:45PM7.65m
3:11AM7.95m
3:49PM7.86m
4:11AM8.13m
4:43PM8.13m
5:02AM8.31m
5:30PM8.37m
5:46AM8.45m
6:10PM8.57m
Low Tide
6:13AM2.40m
6:35PM2.69m
7:23AM2.58m
7:49PM2.79m
8:33AM2.58m
8:57PM2.68m
9:35AM2.44m
9:56PM2.46m
10:29AM2.26m
10:47PM2.23m
11:15AM2.10m
11:30PM2.05m
11:54AM1.99m
00:08AM1.93m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:11
5:11
5:09
5:09
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:12
9:13
9:15
9:15
9:16
9:17
9:20
Temp °C
16
16
15
19
22
22
23
26
25
24
26
22
18
22
19
20
22
15
15
18
16
14
14
14
18
22
22
22
27
26
23
26
22
13
19
15
16
20
15
13
16
15
Swell 1
Height (m)
Direction
Period (s)
1.1
WSW
10
1
WSW
10
0.9
WSW
10
0.7
WSW
9
0.6
WSW
9
0.7
WSW
9
0.6
WSW
9
0.6
W
9
0.5
W
8
0.4
WSW
8
0.5
W
12
0.4
WSW
11
0.4
WSW
11
0.3
WSW
10
0.3
W
10
0.2
W
10
0.2
W
9
0.2
W
9
0.2
WSW
6
0.3
WSW
5
0.3
WSW
14
Energy kJ
227
183
132
84
62
86
62
54
31
20
75
43
39
21
17
7
6
6
3
5
39
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
14
0.1
SW
14
0.1
W
16
0.3
WSW
14
0.2
WSW
13
0.2
W
13
0.3
WSW
13
0.1
SW
18
0.1
SW
18
0.1
SW
16
0.1
SW
5
0.1
SW
16
0.1
SW
16
0.3
W
5
Energy kJ
8
7
5
37
18
14
34
12
12
10
1
10
9
4
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
13
0.2
W
10
0.1
W
18
0.1
SW
16
0.1
W
8
0.1
W
8
0.2
WSW
9
Energy kJ
7
8
6
10
1
1
8
Wind waves
Height (m)
Direction
Period (s)
0.2
ESE
2
0.2
ESE
2
0.5
E
3
0.6
ESE
3
0.7
ESE
4
0.6
SE
3
0.4
SE
3
0.2
WSW
3
Energy kJ
1
1
5
9
11
9
2
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
10
1
0
0
0
0
2
14
16
20
14
20
316
262
222
163
183
86
189
190
13
Best forecast wave conditions in Wales - Gower
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
2
1
1
2
4
2
2
2
2
3
2
2
1
1
1
1
1
1
2
Header Global
Rating
(10 max)
4
8
5
5
5
5
5
5
4
7
8
6
6
7
5
5
9
9
9
7
6
  • 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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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 16 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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