Crab Island Surf Break

Lat Long: 51.56° N 4.00° W

Crab Island 48 hour detailed Surf Forecast

Issued: 6 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Crab Island sea temperature is
19.0°C
3.1° 

Crab Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Crab Island today (11 Sep):

  • Morning surf: Morning surf (11 Sep, local time) - 4.5ft (1.3m), 9s period with WSW swell.
  • Afternoon surf: Afternoon surf (11 Sep, local time) - 3.5ft (1.0m), 9s period with WSW swell.
  • Evening surf: Evening surf (11 Sep, local time) - 3ft (0.9m), 9s period with WSW swell.

The current surf forecast for Crab Island at 11AM is: 1.1m 9s primary swell from a West-southwest direction (forecast issued at 06:00am September 11). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (BST) & DateWave HeightWave Period
Morning (11 Sep)4.5ft (1.3m)9s
Afternoon (11 Sep)3.5ft (1.0m)9s
Evening (11 Sep)3ft (0.9m)9s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat night. Very mild (max 18°C on Sat night, min 14°C on Fri night). Winds increasing (light winds from the WNW on Fri afternoon, fresh winds from the SW by Sat morning).

Friday
11
Saturday
12
Sunday
13
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
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
1
2
2
2
1
0
0
0
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
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WSW
9
1.4
WSW
9
1.2
WSW
9
1.1
WSW
9
1
WSW
9
0.9
WSW
9
0.9
WSW
9
0.9
WSW
8
0.7
WSW
8
0.6
WSW
8
1.2
WSW
5
1.5
WSW
6
1.7
WSW
7
1.8
WSW
7
1.8
WSW
7
1.7
WSW
7
1.6
WSW
7
1.5
WSW
7
1.2
WSW
7
1.1
WSW
7
1.1
WSW
9
1
WSW
9
0.9
WSW
9
Wave Graph
Metric surfscale
Energy kJ
352
314
265
211
169
137
131
96
70
51
74
164
261
306
312
289
247
210
132
128
206
177
146
Wind (km/h)
15
WNW
10
NW
10
NW
10
NW
10
WNW
15
W
10
W
10
WSW
20
WSW
25
SW
30
SW
35
SW
35
SW
30
SW
35
WSW
30
WSW
25
WSW
20
W
20
W
20
WSW
20
WSW
15
WSW
10
SW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-on
High Tide
7:20AM9.57m
7:36PM9.85m
7:58AM9.68m
8:13PM9.85m
8:32AM9.62m
8:46PM9.69m
Low Tide
1:11AM0.99m
1:23PM0.98m
1:50AM0.87m
1:58PM0.91m
2:22AM0.93m
2:30PM0.99m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
cloud
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:45
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:40
7:37
7:36
 mm
3
4
2
Temp °C
16
15
15
16
16
16
14
14
14
15
16
17
17
17
17
17
18
17
16
17
18
17
17
Feels °C
14
14
13
14
15
14
12
12
11
11
11
12
12
13
13
13
16
15
15
15
16
16
17
  • 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
How to use the Wavefinder 

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Gower

  1. West Coast Surf: ‘Porth Neigwl: Choppy waves hadn't tidied much (from what I could see in the dark.’

    Hells Mouth (Porth Neigwl), 145 km away
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