Crab Island surfForecast / Wales – Gower / UK

information circle12 Day Weather and Surf, issued 12 pm Tuesday 01 Jul 2025 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
18.0° C
(Which is 3.5°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 01) at 10PM. The primary swell is predicted to be 0.8m 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 12 days are 1.6m 8s and forecast to arrive on Sunday (Jul 06) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Jul 02) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 1st Jul)2.5ft (0.8m) 10s
Best Surf10PM (Sun 6th Jul)4ft (1.2m) 9s
Most Powerful 1PM (Sun 6th Jul)5ft (1.6m) 8s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
WSW
0.9
WSW
0.8
WSW
0.6
WSW
0.6
WSW
0.7
WSW
0.5
WSW
0.6
W
0.5
W
0.4
WSW
0.7
WSW
1
WSW
1.5
WSW
1.5
WSW
1.6
W
1.6
W
1.5
W
1.1
WSW
0.6
W
0.9
WSW
0.7
W
0.7
W
0.6
W
0.6
W
0.4
WSW
0.5
WSW
0.3
WSW
0.5
W
0.5
W
0.4
W
0.2
W
0.3
W
0.3
W
0.3
W
0.3
W
0.4
W
Period(s) (?)101010999968656777789996558775555988888
Wave
Graph
(?)Metric surfscale
Energy (?)180173126656510753483320301291952092472702652021101295442304618471014141071315131222
Wind
(km/h)
10
WNW
20
W
20
NNW
25
NNW
20
NW
5
NW
10
W
20
W
5
NW
15
SW
25
WSW
25
SW
35
SW
35
WSW
30
W
30
WNW
25
WNW
25
WNW
25
W
30
W
15
NNW
25
NNW
25
NNW
10
NNW
10
SW
20
WSW
10
W
10
SW
20
WSW
5
W
10
SW
15
WSW
10
NW
5
WNW
15
WSW
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
offcross-
off
cross-
off
crosscrosscross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
cross-
off
crosscrosscross-
off
offcross-
off
cross-
off
cross-
on
crosscross-
off
cross-
on
crosscross-
off
cross-
on
crosscross-
off
cross-
off
crosscross-
off
High Tide
/ height (m)
11:20AM
8.04
11:36PM
8.16
12:02PM
7.71
12:20AM
7.82
12:50PM
7.42
1:12AM
7.53
1:47PM
7.24
2:12AM
7.35
2:52PM
7.23
3:17AM
7.34
3:57PM
7.42
4:19AM
7.51
4:54PM
7.73
5:15AM
7.77
5:44PM
8.09
6:04AM
8.07
6:28PM
8.41
6:47AM
8.34
7:09PM
8.70
7:28AM
8.57
7:48PM
8.93
8:08AM
8.76
8:27PM
9.10
Low Tide
/ height (m)
5:16PM
2.38
5:48AM
2.48
6:01PM
2.68
6:34AM
2.78
6:54PM
2.95
7:29AM
3.01
7:55PM
3.12
8:31AM
3.12
9:00PM
3.13
9:34AM
3.06
10:02PM
2.98
10:33AM
2.86
10:57PM
2.73
11:25AM
2.60
11:47PM
2.44
12:10PM
2.33
12:31AM
2.16
12:52PM
2.09
1:13AM
1.91
1:30PM
1.88
1:53AM
1.69
2:08PM
1.71
2:32AM
1.52
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunrise5:01--5:03--5:03--5:03--5:05--5:05--5:07--5:07--5:09--5:09--5:11--5:11--
Sunset-9:36--9:36--9:36--9:35--9:35--9:34--9:34--9:32--9:31--9:31--9:30--9:30-
part cloudcloudpart cloudclearclearclearpart cloudclearpart cloudcloudpart cloudrain showersheavy rainmod rainrain showerspart cloudclearclearcloudlight rainrain showerspart cloudclearclearclearpart cloudclearpart cloudpart cloudclearpart cloudpart cloudpart cloudpart cloudclearclear
Rain (mm)
-----------21361----42---------------
Temp. °C201816171815151514151515161615151616161515161714171615171816171917181817
Feels °C (?)191615121412131111131112111110101012121013121211151213161616161716161617

Short Range Forecast: Mostly dry. Warm (max 20°C on Tue morning, min 13°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Sat morning. Very mild (max 16°C on Sat morning, min 13°C on Sun night). Winds increasing (light winds from the SW on Fri morning, strong winds from the SW by Sat morning).

Days 6-9 Weather Summary Light rain (total 6mm), mostly falling on Mon afternoon. Very mild (max 17°C on Tue afternoon, min 12°C on Mon night). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue night).

Long Range Forecast: Mostly dry. Very mild (max 19°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light.

  • 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 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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