Surf Forecasts:
Crab Island surf forecast from 14 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 7AM (local time) - 1ft (0.3m), 10s period, WSW swell with 19 kJ wave energy.
Best Forecast Surf Conditions for Crab Island this week:
The most powerful waves expected at Crab Island in the next 16 days are 0.3m 10s and forecast to arrive on Wednesday (Jul 15) at 7AM. 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 3s period and expected on Wednesday (Jul 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Wed 15th Jul) | 1ft (0.3m) 10s |
Table - best surf conditions forecast for Crab Island over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve scanned the whole 16‑day window for Crab Island and I’ve got to be straight with you – there’s nothing worth paddling out for. Zero, zilch. Every single session from Tuesday 14 July right through to Wednesday 29 July is marked as poor surf conditions. That’s a full 16‑day drought.
Crab Island (a reef break that’s usually fairly consistent) is sitting dead flat most of the time. We’re talking swell heights around 0.3ft to 0.7ft for the first week and a bit, with combined energy barely reaching double digits – often just 2 to 27. Winds are all over the place, mostly cross or cross‑off, with a few glassy moments but no push to make anything rideable. Even when the energy finally climbs on Sunday 26 July afternoon to 121, the swell is only 4ft with a short 6‑second period and a fresh cross‑shore that’ll chop it to bits. Monday 27 July morning bumps up to 5ft and 515 energy, but that’s a cross‑onshore mess with lumps. After that it stays poor – Tuesday 28 July and Wednesday 29 July have moderate to fresh cross‑onshore winds and lumpy, choppy conditions.
Bottom line: there are no good surf options in this whole 16‑day stretch. For an area where the break is fairly consistent, this run is a rare blank. Sometimes it just goes quiet. Forecasts can change, but right now you’d be wasting your time.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Wed afternoon, min 18°C on Tue night). Winds increasing (calm on Tue afternoon, fresh winds from the ENE by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | E 3 | E 3 | W 10 | W 9 | W 8 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 12 | 10 | 10 | 10 | 10 | 8 | 7 | 8 | 5 | 7 | 5 | 5 | 5 | 1 | 1 | 1 | 2 | 2 | 1 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-off | cross | glassy | cross | cross | off | cross | cross-on | cross-on | off | glassy | cross-off | off | glassy | cross | off | cross-off | cross-off | cross-off |
High Tide | 7:15PM9.41m | 7:47AM9.35m | 8:07PM9.66m | 8:37AM9.47m | 8:55PM9.74m | 9:23AM9.43m | 9:40PM9.63m | 10:05AM9.21m | 10:22PM9.35m | 10:45AM8.86m | 11:01PM8.94m | 11:23AM8.43m | 11:40PM8.45m | ||||||||
Low Tide | 12:56PM1.39m | 1:30AM1.17m | 1:50PM1.13m | 2:24AM0.97m | 2:39PM1.03m | 3:12AM0.94m | 3:24PM1.08m | 3:55AM1.08m | 4:05PM1.29m | 4:34AM1.38m | 4:43PM1.62m | 5:11AM1.78m | 5:21PM2.03m | ||||||||
 | |  | |  | | |  |  | | | | | | | | | | | | | |
 | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — |
 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 28 | 25 | 26 | 30 | 27 | 25 | 28 | 24 | 22 | 25 | 22 | 21 | 23 | 17 | 18 | 21 | 18 | 20 | 22 | 20 |
Feels °C | 22 | 26 | 21 | 24 | 27 | 20 | 24 | 26 | 23 | 20 | 22 | 19 | 19 | 19 | 13 | 16 | 16 | 13 | 17 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | W 8 | WSW 8 | W 8 | W 8 | W 8 | WNW 3 | W 8 | W 8 | NW 3 | W 7 | W 7 | W 7 | W 9 | W 8 | WNW 3 |
| kJ | 10 | 12 | 10 | 9 | 8 | 8 | 5 | 7 | 6 | 5 | 5 | 1 | 5 | 5 | 3 | 1 | 1 | 1 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 14 | SW 16 | SW 16 | SW 6 | W 10 | — | SW 7 | SW 7 | SW 6 | W 8 | SW 6 | S 5 | W 8 | — | — | — | — | — | W 8 |
| kJ | 12 | 12 | 7 | 10 | 10 | 1 | 2 | — | 2 | 2 | 2 | 5 | 1 | 1 | 1 | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | W 14 | — | S 7 | SW 7 | SW 16 | SW 14 | SW 7 | SW 15 | — | SW 13 | SW 6 | — | — | — | — | — | W 10 | — | — | W 11 |
| kJ | — | 4 | — | 1 | 2 | 10 | 8 | 2 | 8 | — | 7 | 1 | — | — | — | — | — | 2 | — | — | 2 |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | E 3 | E 3 | E 3 | E 3 | E 2 | — | E 2 | — | — | — | — | — | — | E 3 | E 3 | — | — | — | — |
| kJ | 8 | 3 | 8 | 2 | 1 | 5 | 1 | — | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 73 | 127 | 86 | 202 | 414 | 345 | 307 | 176 | 120 | 319 | 376 | 395 | 395 | 908 | 397 | 420 | 420 | 348 | 159 | 395 | 319 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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