
Surf Forecasts:
Llangennith surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 10PM (local time) - 2.5ft (0.7m), 10s period, WSW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 7ft (2.1m), 13s period, WSW swell with 1,423 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10PM (local time) - 2.5ft (0.7m), 10s period with WSW 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 Saturday (Sep 05) at 10PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Llangennith in the next 16 days are 2.1m 13s and forecast to arrive on Monday (Sep 07) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 5th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 10PM (Sat 5th Sep) | 2.5ft (0.7m) 10s |
| Most Powerful | 1PM (Mon 7th Sep) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Llangennith over the next 16 days.
The Lowdown
Right, mate, Rusty here. Let's have a look at what Llangennith's got cookin' over the next couple of weeks. Straight off the bat, I gotta be honest with you – it's a bit of a rough patch ahead. We've got a solid run of poor surf conditions kickin' things off, with a lot of onshore wind messing things up. The water temp is sitting at 67°, which is a whopping 6° warmer than normal for this time of year – that's very unusual, almost like we're in a different season.
The first real chance of anything decent doesn't come until Saturday the 5th of September, and even then it's only a marginal call. We're looking at a small 3 ft swell from the WSW with a short 7-second period, but the wind goes light and onshore, so the combined swell energy is a weak 142. It's a beginner-friendly size, but the quality's not there. That little window fades fast, and we're straight back into poor, choppy conditions for days after.
There's a flicker on Sunday the 6th, with tiny 2 ft to 3 ft waves and a clean cross-off breeze. The energy is next to nothing though – 54 to 71 – so it's really just a splash around for a longboard or a foiler, nothing to get excited about.
Then things go a bit mental. Monday the 7th sees a big jump in swell height to 7 ft from the WSW, with a lovely 13-second period. The combined energy rockets up to 1387, which is strong. But here's the kicker – the wind is a cross-onshore 16 mph, and the report says "poor surf conditions." That's a tough one. The power is there, but the wind is gonna chop it all up. This is more of a challenge for experts who don't mind ugly conditions, but for most of us, it's a miss.
The rest of that week and into the next is a grim story of strong winds and onshore slop. We get a few mornings on the 12th and 13th of September where the wind drops, and the swell is small – around 2 ft to 4 ft – but the periods are short and the energy is weak. It's marginal at best.
Finally, there's a standout moment on Tuesday the 15th of September. The morning shows glassy conditions with zero wind and a 3 ft swell from the WSW. The period is a solid 9 seconds, giving it a bit of shape. The energy is still only moderate at 166, but the glassy wind will make it look a thousand times better. This is the best we've got in the whole run. It's a small, clean wave perfect for a beginner or for just getting a few cruisy turns. The crowds are listed as "sometimes" here, so you might have a few mates out, but with the general forecast looking average, it might be quieter than usual.
Wednesday the 16th has another glassy morning, but the swell drops right off to 2 ft, so it's really just a tiny ripple.
So, if you're desperate for a paddle, the absolute pick is Tuesday the 15th of September morning. Set your alarm, get there early, and enjoy the clean conditions while they last. For the rest, it's a lot of wind and chop, and the bigger swells are just blown out. I'd keep an eye on that Saturday the 5th for a beginner session, but don't hold your breath.
Stay tuned, forecasts can change. Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 20°C on Sun morning, min 14°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, calm by Sat night). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Mon night. Warm (max 23°C on Sun afternoon, min 13°C on Mon night). Winds increasing (light winds from the SSW on Sun afternoon, strong winds from the SW by Mon night). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | SW 5 | WSW 11 | WSW 12 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph | ||||||||||||||||||||
263 | 479 | 599 | 406 | 161 | 93 | 105 | 86 | 61 | 47 | 80 | 769 | 1138 | 844 | 858 | 773 | 644 | 355 | 433 | 376 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-on | cross-on | on | cross-on | on | on | on | on | on | cross |
High Tide | 11:16PM7.20m | 11:43AM6.88m | 00:16AM6.58m | 12:52PM6.37m | 1:38AM6.14m | 2:24PM6.19m | 3:16AM6.18m | 3:56PM6.54m | 4:36AM6.67m | 5:04PM7.20m | 5:34AM7.31m | 5:56PM7.89m | ||||||||
Low Tide | 4:49PM1.33m | 5:16AM1.67m | 5:45PM1.90m | 6:20AM2.24m | 7:06PM2.39m | 7:55AM2.58m | 8:54PM2.45m | 9:38AM2.39m | 10:25PM1.99m | 10:53AM1.83m | 11:27PM1.35m | 11:47AM1.20m | 00:15AM0.74m | |||||||
— | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | |
8:00 | — | — | 7:58 | — | — | 7:55 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:45 | — | |
mm | — | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — | 9 | 1 | — | — | — | 1 | 8 |
Temp °C | 18 | 19 | 16 | 17 | 16 | 15 | 15 | 15 | 20 | 23 | 18 | 17 | 16 | 16 | 15 | 16 | 15 | 16 | 16 | 16 |
Feels °C | 15 | 13 | 11 | 11 | 11 | 13 | 12 | 15 | 16 | 20 | 16 | 13 | 11 | 11 | 7 | 8 | 8 | 10 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | — | SW 14 | SW 14 | WSW 8 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | W 17 | WSW 13 | — | — | — | — | — | — | — | — |
23 | — | 8 | 8 | 75 | 93 | 105 | 86 | 61 | 47 | 6 | 253 | — | — | — | — | — | — | — | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 14 | WSW 8 | SW 13 | SW 13 | SW 13 | SE 3 | SW 12 | — | — | — | — | — | — | — | — | — |
— | — | — | — | 8 | 57 | 7 | 7 | 7 | 2 | 6 | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 15 | SW 14 | — | — | SW 13 | SW 13 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 4 | 7 | — | — | 7 | 6 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 7 | — | — | — | SE 3 | SE 3 | SW 5 | WSW 11 | WSW 12 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | WSW 7 |
263 | 479 | 599 | 406 | 161 | — | — | — | 7 | 2 | 80 | 769 | 1138 | 844 | 858 | 773 | 644 | 355 | 433 | 376 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 314 | 156 | 158 | 361 | 29 | 4 | 127 | 0 | 49 | 0 | 98 | 12 | 325 | 196 | 654 | 362 | 369 | 369 | 142 | 243 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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.










