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Crab Island Surf Forecast
/ Wales – Gower (29 surf breaks) /
Surf Forecasts:
Crab Island surfForecast / Wales – Gower / UK
16 Day Weather and Surf, issued 6 pm Thursday 14 May 2026 BSTForecast 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
13.0° C
(Which is 1.9°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 Sunday (May 17) at 4AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.2m and 13s. 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 1.8m 13s and forecast to arrive on Wednesday (May 20) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (May 15) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 17th May) | 3ft (0.9m) 6s |
| Best Surf | 7AM (Mon 18th May) | 4.5ft (1.4m) 7s |
| Most Powerful | 1PM (Wed 20th May) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Crab Island over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 11°C on Thu afternoon, min 7°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu afternoon, light winds from the W by Fri night). | Days 5-7 Weather SummaryHeavy rain (total 23mm), heaviest during Mon night. Very mild (max 13°C on Mon night, min 9°C on Sun night). Winds increasing (light winds from the NW on Sun night, strong winds from the WSW by Mon night). | ||||||||||||||||||||
Thu 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
W 7 | W 6 | W 7 | W 6 | W 9 | WSW 5 | WSW 4 | WSW 5 | WSW 6 | WSW 12 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 8 | WSW 10 | W 13 | WSW 12 | WSW 12 | |
71 | 37 | 23 | 8 | 6 | 5 | 10 | 45 | 51 | 303 | 212 | 156 | 82 | 38 | 96 | 271 | 424 | 491 | 865 | 540 | 293 | |
Wind (km/h) | |||||||||||||||||||||
off | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross | cross-on | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 5:14PM8.65m | 5:38AM9.02m | 6:02PM9.09m | 6:26AM9.34m | 6:49PM9.41m | 7:15AM9.52m | 7:36PM9.58m | 8:03AM9.54m | 8:22PM9.58m | 8:51AM9.39m | 9:10PM9.41m | 9:40AM9.09m | 9:59PM9.09m | 10:31AM8.67m | |||||||
Low Tide | 11:20PM1.70m | 11:44AM1.38m | 00:06AM1.33m | 12:31PM1.12m | 00:53AM1.10m | 1:17PM1.01m | 1:40AM1.02m | 2:03PM1.05m | 2:28AM1.10m | 2:49PM1.23m | 3:17AM1.32m | 3:37PM1.56m | 4:09AM1.67m | ||||||||
 |  |  |  |  | | |  | |  |  | |  |  | | |  | | | | | |
 | — | — | 5:24 | — | — | 5:22 | — | — | 5:20 | — | — | 5:20 | — | — | 5:18 | — | — | 5:16 | — | — | 5:16 |
 | 8:59 | — | — | — | 9:00 | — | — | 9:01 | — | — | 9:02 | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 | 9:08 |
— | — | — | — | — | — | — | — | — | 1 | 5 | — | 4 | 9 | 2 | 1 | 1 | — | — | — | — | |
Temp °C | 11 | 9 | 9 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 15 |
3 | 3 | 4 | 4 | 7 | 7 | 6 | 7 | 6 | 5 | 4 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 10 | 11 | 14 | |
Swell 1 Height (m) Direction Period (s) | W 7 | W 6 | W 7 | W 6 | W 6 | W 7 | W 9 | WSW 5 | WSW 6 | W 12 | WSW 11 | WSW 7 | WSW 10 | WSW 7 | W 15 | — | W 13 | WSW 14 | W 13 | WSW 12 | WSW 12 |
 kJ | 71 | 37 | 23 | 7 | 2 | 4 | 2 | 45 | 51 | 138 | 42 | 156 | 20 | 38 | 4 | — | 14 | 289 | 865 | 540 | 293 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | N 4 | W 9 | W 13 | W 13 | WSW 12 | — | W 11 | W 11 | W 10 | WSW 10 | — | — | W 17 | W 14 | — | — | — |
| kJ | 8 | 8 | 8 | 8 | 1 | 2 | 3 | 4 | 29 | — | 63 | 39 | 49 | 18 | — | — | 6 | 257 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 9 | W 13 | — | W 8 | W 15 | — | — | — | — | — | — | — | W 18 | — | — | — | — |
| kJ | — | — | — | — | 6 | 3 | — | 1 | 4 | — | — | — | — | — | — | — | 6 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NW 3 | NW 4 | WNW 4 | WSW 5 | WSW 4 | — | — | WSW 12 | WSW 7 | — | WSW 7 | — | WSW 6 | WSW 6 | WSW 8 | WSW 10 | — | — | — |
| kJ | 32 | 12 | 5 | 24 | 3 | 5 | 10 | — | — | 303 | 212 | — | 82 | — | 96 | 271 | 424 | 491 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 362 | 39 | 190 | 373 | 320 | 182 | 320 | 361 | 1 | 320 | 320 | 133 | 68 | 427 | 433 | 320 | 359 | 182 | 133 | 10 | 13 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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.
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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