Crab Island surfForecast / Wales – Gower / UK

information circle48hr Weather and Surf, issued 12 pm Monday 18 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
12.8° C
(Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Crab Island today?

The current surf forecast for Crab Island at 7PM is: 1.3m 7s primary swell from a West-southwest direction and 0.3m 10s secondary swell from a West-southwest direction (forecast issued at 12:00pm May 18). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (18 May)6ft (1.8m)7s
Afternoon (18 May)5ft (1.6m)7s
Evening (18 May)4ft (1.2m)6s

Table - waves today at Crab Island. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 22mm), heaviest during Mon morning. Very mild (max 14°C on Wed afternoon, min 10°C on Mon morning). Winds decreasing (strong winds from the SW on Tue night, light winds from the S by Wed night).

Mon
18
Tuesday
19
Wednesday
20
Thu
21
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
0
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
7
1.6
WSW
7
1.6
WSW
7
1.3
WSW
7
1.2
SW
6
1.3
WSW
6
1.6
SW
7
1.7
SW
8
1.7
SW
8
1.9
SW
8
2.1
WSW
8
2.3
WSW
8
2.5
WSW
9
2.5
WSW
9
2.5
WSW
9
2.5
WSW
14
2.5
WSW
13
2.4
WSW
13
2.2
WSW
13
2
WSW
13
1.7
WSW
12
1.6
WSW
12
1.5
WSW
12
1.4
WSW
12
Wave Graph
Metric surfscale
Energy kJ
294
237
216
134
116
126
233
320
355
485
587
717
932
1118
1208
2598
2053
1872
1514
1246
905
713
623
541
Wind (km/h)
25
WSW
35
SW
25
SSW
30
S
30
SSE
35
S
30
S
30
SSW
35
SSW
35
SW
40
SW
40
SW
45
SW
40
SW
35
WSW
35
WSW
35
WSW
30
WSW
30
SW
25
SW
15
SSW
15
SSW
15
SSW
15
S
cross-on
cross-on
on
on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
8:03AM9.54m
8:22PM9.58m
8:51AM9.39m
9:10PM9.41m
9:40AM9.09m
9:59PM9.09m
Low Tide
2:03PM1.05m
2:28AM1.10m
2:49PM1.23m
3:17AM1.32m
3:37PM1.56m
4:09AM1.67m
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
light rain
light rain
rain showers
clear
part cloud
cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:18
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:06
9:07
9:08
3
2
1
1
3
2
2
1
1
1
1
1
1
1
1
Temp °C
10
11
11
11
11
11
13
12
13
13
13
12
12
12
12
12
13
13
13
14
13
13
13
14
4
4
6
6
5
4
8
7
7
6
6
4
3
4
6
6
7
8
8
10
11
11
10
12
Swell 1
Height (m)
Direction
Period (s)
0.4
W
11
0.4
W
11
0.1
W
10
1.3
WSW
7
0.3
WSW
10
1.3
WSW
6
0.1
W
19
0.1
W
19
0.1
W
15
0.1
W
15
0.3
WSW
17
2.5
WSW
14
1.9
WSW
13
1.7
WSW
12
1.6
WSW
12
1.5
WSW
12
1.4
WSW
12
Energy kJ
39
38
2
134
19
126
7
7
4
4
58
2310
1211
905
713
623
541
Swell 2
Height (m)
Direction
Period (s)
0.3
W
11
0.3
WSW
10
0.2
WSW
10
0.1
W
13
Energy kJ
21
19
10
3
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.7
WSW
7
1.6
WSW
7
1.6
WSW
7
1.2
SW
6
0.7
S
4
1.6
SW
7
1.7
SW
8
1.7
SW
8
1.9
SW
8
2.1
WSW
8
2.3
WSW
8
2.5
WSW
9
2.5
WSW
9
2.5
WSW
9
2.5
WSW
14
2.5
WSW
13
2.4
WSW
13
2.2
WSW
13
2
WSW
13
Energy kJ
294
237
216
116
14
233
320
355
485
587
717
932
1118
1208
2598
2053
1872
1514
1246
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
2
1
1
1
1
1
1
1
1
1
4
4
4
4
3
4
2
2
1
1
Distance (km)
148
308
253
251
273
420
427
432
450
437
437
386
361
361
320
320
320
416
344
133
39
68
68
39
Best forecast wave conditions in Wales - Gower
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
3
3
2
2
2
2
2
2
1
1
2
2
3
2
1
2
2
2
4
3
3
3
3
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
5
5
5
4
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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