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Llangennith Surf Forecast
/ Wales – Gower (29 surf breaks) /
Surf Forecasts:
Llangennith surfForecast / Wales – Gower / UK
12 Day Weather and Surf, issued 6 am Tuesday 16 Sep 2025 BST
Best Forecast Surf Conditions for Llangennith this week:
The surf forecast for Llangennith over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 7AM. The primary swell is predicted to be 1.3m and 9s 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 Llangennith in the next 12 days are 2.5m 12s and forecast to arrive on Thursday (Sep 18) at 4AM. 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 Monday (Sep 22) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 20th Sep) | 4.5ft (1.3m) 9s |
| Best Surf | 7AM (Sat 20th Sep) | 4.5ft (1.3m) 9s |
| Most Powerful | 4AM (Thu 18th Sep) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Llangennith over the next 12 days.
Short Range Forecast Heavy rain (total 22mm), heaviest during Tue night. Very mild (max 17°C on Wed night, min 14°C on Tue morning). Winds decreasing (strong winds from the SW on Tue night, light winds from the S by Thu night). | Days 3-6 Weather Summary Heavy rain (total 61mm), heaviest during Sat afternoon. Very mild (max 18°C on Fri afternoon, min 8°C on Sun morning). Winds increasing (light winds from the NW on Fri night, near gales from the NNE by Sun morning). | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 10 | 8 | 10 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 7 | 8 | 8 | 7 | 7 | 6 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 1543 | 513 | 948 | 1205 | 1594 | 1715 | 1447 | 1363 | 1868 | 709 | 461 | 274 | 280 | 294 | 317 | 379 | 213 | 76 | 35 | 17 | 16 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross |
High Tide / height (m) | 2:15PM 6.05 | 3:10AM 5.93 | 3:50PM 6.27 | 4:32AM 6.33 | 4:58PM 6.82 | 5:27AM 6.88 | 5:47PM 7.39 | 6:10AM 7.39 | 6:27PM 7.86 | 6:46AM 7.80 | 7:02PM 8.19 | 7:19AM 8.08 | 7:34PM 8.36 | ||||||||
Low Tide / height (m) | 8:55PM 2.60 | 9:38AM 2.63 | 10:25PM 2.25 | 10:52AM 2.16 | 11:24PM 1.71 | 11:42AM 1.61 | 12:07AM 1.22 | 12:21PM 1.14 | 12:42AM 0.82 | 12:54PM 0.78 | 1:13AM 0.56 | 1:24PM 0.55 | 1:42AM 0.43 | ||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| Sunrise | 6:52 | - | - | 6:54 | - | - | 6:54 | - | - | 6:56 | - | - | 6:58 | - | - | 7:00 | - | - | 7:01 | - | - |
| Sunset | - | 7:30 | - | - | 7:28 | - | - | 7:25 | - | - | 7:22 | - | - | 7:21 | - | - | 7:19 | - | - | 7:15 | - |
 |  |  |  | |  | | |  | | |  |  |  | | | | | | |  | |
Rain (mm) | - | - | 11 | 4 | 5 | 2 | - | - | - | - | - | 7 | 6 | 21 | 16 | 5 | 6 | - | - | - | - |
| Temp. °C | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 18 | 16 | 12 | 13 | 12 | 8 | 9 | 11 | 11 | 12 | 11 |
| Feels °C (?) | 10 | 10 | 9 | 10 | 12 | 13 | 13 | 13 | 14 | 15 | 16 | 15 | 7 | 10 | 7 | -5 | 0 | 3 | 4 | 5 | 6 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - Gower
The wind is still cross-on at Llangennith (light winds from the WNW at Rhossili wx 3 km from Llangennith). 2.0m 8s swell from the WSW with a 1.2m 12s groundswell, also from the WSW. 2 swells combining so expect closeout sets.
1 h 45 min ago
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 Llangennith 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 Llangennith Surf forecast
The above surf forecast table for Llangennith provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Llangennith can be found by selecting the local surf guide option on the grey menu. Our Llangennith 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 (Llangennith) 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 Llangennith 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.
Llangennith is 24 km (15 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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