Surf Forecasts:
Llangennith surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 10AM (local time) - 5.5ft (1.7m), 9s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 6ft (1.8m), 10s period, SW swell with 676 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 0.5ft (0.2m), 15s period with SSW swell.
Best Forecast Surf Conditions for Llangennith this week:
The surf forecast for Llangennith over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 4AM. The primary swell is predicted to be 0.2m and 15s period with a secondary swell of 0.3m and 9s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Llangennith in the next 16 days are 1.8m 10s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 25) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 0.5ft (0.2m) 15s |
| Best Surf | 10AM (Fri 28th Aug) | 5.5ft (1.7m) 9s |
| Most Powerful | 1AM (Fri 28th Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Llangennith over the next 16 days.
The Lowdown
Right, let’s talk about this spell in the water. For a start, the ocean is unseasonably warm, about 4° above normal, so you’ll be shedding the thick rubber. But for the surf? It’s a slow start.
We’ve got a big gap with nothing worthwhile until Friday morning, the 28th of August. That morning, a 1.7m swell pushes in from the SW with a period around 9 seconds, and the combined energy is building to (468). The wind is out of the SSE at 15 km/h, blowing cross-offshore, so the waves will be clean. Llangennith likes a W swell, but that SW swell will still wrap in a bit. This is the best bet in the whole 16-day window. After that morning, the wind swings onshore Friday afternoon and stays that way through the weekend. Saturday the 29th sees the swell jump to 1.9m and even 2.2m, but with strong onshore winds from the WNW at 35 km/h, it’s going to be blown out and messy. That kind of size with those winds is only for the die-hard experts, if anyone at all.
Into the second week, we see a pattern of onshore wind and lumpy, choppy conditions. Sunday the 30th and Monday the 31st have some chest-high swell around the 1.6m mark, but the wind is either cross-onshore or onshore, making it ragged. By Tuesday the 1st of September, it’s down to small waves, with combined energy below 100. There’s a slight return on Friday the 4th of September afternoon with a 1.3m SW swell and (117) energy, but again, onshore wind ruins it. Saturday the 5th of September brings a 1.6m WSW swell with (284) energy, but fresh cross-onshore winds at 30 km/h will have you thinking about a kite instead of a surfboard. After that, it’s back to small, wind-affected slop.
The one and only standout is Friday morning, the 28th of August. It’s the only time the winds are clean, with a decent 1.7m swell. It’s borderline for beginners but doable if you’re confident. For the rest, it’s a lot of waiting and watching.
Keep an eye on the forecasts, because it can change, but right now, we’re in a lean patch.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 13°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the E by Mon morning). | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Wed night. Warm (max 23°C on Tue afternoon, min 16°C on Thu afternoon). Winds increasing (calm on Wed afternoon, strong winds from the SSW by Thu afternoon). | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 10 | SSW 15 | W 9 | SW 14 | SW 10 | SW 9 | W 9 | W 9 | W 8 | SSW 8 | SW 8 | SW 8 | W 8 | SW 6 | SSW 4 | SW 8 | SW 10 | SW 9 | SW 8 | SW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 18 | 21 | 8 | 29 | 25 | 13 | 7 | 7 | 7 | 7 | 17 | 16 | 12 | 19 | 25 | 201 | 676 | 468 | 239 | 79 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | cross-on | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | off | cross | cross | cross | cross-off | on | cross-on |
High Tide | 3:07AM5.42m | 3:51PM5.63m | 4:30AM5.72m | 4:59PM6.09m | 5:25AM6.23m | 5:45PM6.67m | 6:06AM6.78m | 6:23PM7.25m | 6:42AM7.30m | 6:58PM7.78m | 7:15AM7.75m | 7:31PM8.20m | ||||||||
Low Tide | 8:44PM3.11m | 9:29AM3.09m | 10:16PM2.89m | 10:45AM2.71m | 11:17PM2.42m | 11:36AM2.19m | 00:01AM1.88m | 12:15PM1.66m | 00:37AM1.35m | 12:49PM1.17m | 1:10AM0.90m | 1:21PM0.77m | 1:41AM0.55m | |||||||
 |  | | | |  |  |  | | | | | |  |  |  |  |  | | | |
 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 5 | 4 | 8 | 4 | 2 | 3 |
Temp °C | 18 | 14 | 17 | 21 | 19 | 20 | 23 | 20 | 19 | 23 | 20 | 20 | 22 | 20 | 18 | 18 | 16 | 17 | 17 | 16 |
Feels °C | 15 | 10 | 16 | 17 | 15 | 15 | 19 | 14 | 15 | 18 | 17 | 19 | 22 | 18 | 16 | 13 | 11 | 16 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 9 | W 9 | SW 14 | SW 10 | SW 9 | SW 9 | W 9 | SW 9 | SSW 8 | SW 8 | SW 8 | W 8 | SW 6 | W 7 | SW 14 | SW 10 | SW 9 | SW 8 | SW 8 |
| kJ | 18 | 16 | 6 | 29 | 25 | 13 | 3 | 6 | 3 | 7 | 17 | 16 | 12 | 19 | 4 | 7 | 676 | 468 | 239 | 79 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SSW 15 | SW 14 | W 8 | SW 14 | SW 14 | W 9 | SW 13 | W 8 | W 8 | W 9 | W 8 | SSW 8 | W 8 | SW 12 | W 7 | — | — | — | W 11 |
| kJ | 9 | 21 | 8 | 6 | 8 | 8 | 6 | 7 | 5 | 5 | 6 | 12 | 6 | 10 | 6 | 1 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 12 | — | — | — | W 9 | SW 14 | SW 9 | SW 13 | W 10 | SW 13 | SW 13 | SW 12 | SW 12 | W 12 | W 11 | — | — | — | — |
| kJ | 6 | 6 | — | — | — | 2 | 7 | 3 | 7 | 2 | 7 | 6 | 6 | 6 | 3 | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 3 | NNE 2 | N 2 | NE 2 | E 4 | E 4 | E 4 | E 4 | E 4 | SE 3 | SE 3 | SSE 4 | — | SSW 4 | SW 8 | — | SE 3 | — | WNW 3 |
| kJ | — | 3 | 1 | 1 | 1 | 18 | 11 | 20 | 27 | 6 | 3 | 5 | 3 | — | 25 | 201 | — | 1 | — | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 190 | 183 | 82 | 121 | 7 | 375 | 325 | 269 | 128 | 82 | 129 | 156 | 53 | 64 | 77 | 139 | 67 | 0 | 134 | 404 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 16 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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