Surf Forecasts:
Caswell Bay surf forecast from 11 Jun 2026:
- Best quality surf: Sunday 14 Jun, 10AM (local time) - 2ft (0.6m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 11 Jun, 7PM (local time) - 7ft (2.1m), 8s period, WSW swell with 547 kJ wave energy.
- Next surfable swell (1★+): Sunday 14 Jun, 10AM (local time) - 2ft (0.6m), 10s period with WSW swell.
Best Forecast Surf Conditions for Caswell Bay this week:
The surf forecast for Caswell Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 14) at 10AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Caswell Bay in the next 16 days are 2.1m 8s and forecast to arrive on Thursday (Jun 11) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sun 14th Jun) | 2ft (0.6m) 10s |
| Best Surf | 10AM (Sun 14th Jun) | 2ft (0.6m) 10s |
| Most Powerful | 7PM (Thu 11th Jun) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Caswell Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Very mild (max 15°C on Fri morning, min 11°C on Thu morning). Winds decreasing (strong winds from the WSW on Thu morning, light winds from the WNW by Fri night). | Days 4-6 Weather SummarySome drizzle, heaviest during Tue night. Very mild (max 18°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||
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) | WSW 6 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 8 | W 7 | W 11 | WSW 11 | WSW 10 | W 10 | WSW 10 | WSW 9 | WSW 10 | W 10 | W 9 | W 9 | WSW 11 | WSW 10 | WSW 10 | WSW 10 |
Wave Graph | |||||||||||||||||||||
218 | 588 | 427 | 392 | 395 | 336 | 92 | 251 | 158 | 85 | 73 | 31 | 29 | 35 | 48 | 41 | 40 | 88 | 102 | 102 | 102 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | glassy | cross-off | cross | on | on | on | on | on |
High Tide | 3:33PM7.95m | 4:04AM8.30m | 4:35PM8.36m | 5:05AM8.65m | 5:33PM8.79m | 6:03AM8.97m | 6:29PM9.16m | 6:59AM9.22m | 7:22PM9.43m | 7:53AM9.35m | 8:15PM9.55m | 8:45AM9.35m | 9:05PM9.52m | ||||||||
Low Tide | 9:44PM2.39m | 10:15AM2.07m | 10:43PM2.00m | 11:13AM1.74m | 11:40PM1.65m | 12:08PM1.46m | 00:37AM1.36m | 1:02PM1.27m | 1:32AM1.18m | 1:55PM1.18m | 2:26AM1.12m | 2:46PM1.22m | 3:19AM1.19m | ||||||||
4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | |
— | — | 9:31 | — | — | 9:32 | — | — | 9:34 | — | — | 9:34 | — | — | 9:35 | — | — | 9:35 | — | — | 9:36 | |
mm | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — |
Temp °C | 14 | 14 | 14 | 15 | 15 | 13 | 13 | 15 | 14 | 16 | 18 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 15 | 16 |
Feels °C | 7 | 8 | 10 | 10 | 10 | 9 | 9 | 11 | 11 | 14 | 15 | 12 | 15 | 16 | 15 | 12 | 13 | 14 | 14 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | WSW 8 | W 7 | WSW 11 | WSW 11 | WSW 10 | W 10 | WSW 10 | WSW 9 | WSW 10 | W 10 | W 9 | W 9 | WSW 11 | WSW 10 | WSW 10 | WSW 10 |
— | — | — | — | — | 336 | 92 | 71 | 158 | 85 | 73 | 31 | 29 | 35 | 48 | 41 | 40 | 88 | 102 | 102 | 102 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 11 | W 11 | — | — | W 16 | W 14 | W 14 | W 13 | SW 13 | SW 4 | SW 5 | WSW 11 | WSW 4 | WSW 3 | WSW 4 | — |
— | — | — | — | — | 64 | 91 | — | — | 5 | 4 | 4 | 4 | 7 | 3 | 3 | 25 | 1 | 1 | 3 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | — | — | W 11 | — | — | — | — | — | — | — | — | WSW 4 | — | — | — | — |
218 | 588 | 427 | 392 | 395 | — | — | 251 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 440 | 368 | 385 | 368 | 320 | 47 | 5 | 47 | 1 | 0 | 1 | 12 | 51 | 12 | 13 | 48 | 182 | 18 | 133 | 133 | 15 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Caswell Bay Surf forecast
The above surf forecast table for Caswell Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Caswell Bay can be found by selecting the local surf guide option on the grey menu. Our Caswell Bay 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 (Caswell Bay) 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 Caswell Bay 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.
Caswell Bay is 9 km (6 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.










