Surf Forecasts:
Llangennith surf forecast from 20 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 10PM (local time) - 4.5ft (1.4m), 6s period, WSW swell with 170 kJ wave energy.
Best Forecast Surf Conditions for Llangennith this week:
The most powerful waves expected at Llangennith in the next 16 days are 1.4m 6s and forecast to arrive on Saturday (Jul 25) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 23) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Sat 25th Jul) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Llangennith over the next 16 days.
The Lowdown
Alright, let's take a look at what's cookin' for Llangennith. Gotta be honest, it's shaping up to be a rough 16 days. There ain't a single day I'd call a real standout, so we're just lookin' for the cleanest leftovers.
From the get-go, we're stuck in a flat spell for the first week. Waves are tiny and weak, with the combined energy barely hittin' double digits (2 to 21). Most of the time it's blowin' cross or onshore, so it's messy and not worth a paddle.
There's a little bump of life around the 25th and 26th of July. On Saturday afternoon (July 25th), the swell gets up to 4ft from the West, and the combined energy climbs to a moderate 66. But the wind is from the West at 12 mph and onshore, so it's gonna be bumpy. Not great. Sunday the 26th is similar with 3ft of West-Northwest swell, but cross-onshore winds from the NNW at 16 mph keep it choppy.
Right at the end of the first week, there's a real short window on the Monday morning of July 27th. The wind goes glassy out of the NNE (0 mph) and the swell is 2ft from the West. It's nothin' special, and the energy is only 36, but at least it'd be smooth as glass. You'd be scrappin' for tiny ones, but it's the cleanest it'll get.
Then it dries up again right through the end of July and into August. There's another pulse on the Wednesday morning of July 29th where the swell hits 4ft from the West with the strongest energy of the whole forecast, a solid 143. But the wind is a fresh cross-onshore from the NNW at 19 mph. That's gonna be lumpy and ugly. With that wind and a bit of size on a beach break, this setup might actually be better for kiteboarding than a proper surf session.
Lookin' into the first week of August, we're back to tiny swell and onshore winds. There are a few mornings with lighter breezes, but the swell is just too small (0.7ft to 1ft) to bother with.
The bottom line? For a beginner-friendly wave that needs a fat West swell to light up, this 16-day run is a total bust. Keep your stick in the car, but don't get your hopes up. Forecasts can flip, but right now, this is a dry spell for Llangennith.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu afternoon, min 13°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the W by Sat morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 9 | SW 18 | N 4 | W 10 | W 10 | N 4 | N 4 | NNW 4 | N 4 | W 9 | W 8 | W 8 | W 8 | SW 13 | SW 13 | W 4 | W 5 | WSW 7 | W 6 | NNW 5 | W 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 12 | 12 | 2 | 8 | 18 | 9 | 7 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 9 | 61 | 157 | 64 | 44 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | glassy | cross-on | cross | cross | cross-on | cross-off | glassy | on | cross | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-off |
High Tide | 11:17AM7.27m | 11:38PM7.27m | 12:02PM6.78m | 00:26AM6.68m | 12:53PM6.31m | 1:21AM6.18m | 1:54PM5.96m | 2:29AM5.85m | 3:07PM5.83m | 3:44AM5.81m | 4:19PM5.96m | 4:51AM6.02m | 5:18PM6.29m | ||||||||
Low Tide | 5:22PM1.45m | 5:51AM1.66m | 6:09PM1.94m | 6:39AM2.15m | 7:04PM2.39m | 7:36AM2.55m | 8:09PM2.70m | 8:45AM2.76m | 9:24PM2.78m | 9:58AM2.73m | 10:35PM2.61m | 11:02AM2.48m | 11:32PM2.28m | ||||||||
 | |  | | | | | | | | | | | |  |  |  | | | | | |
 | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — |
 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 18 | 20 | 22 | 17 | 20 | 21 | 21 | 22 | 23 | 20 | 19 | 22 | 18 | 17 | 17 | 17 | 17 | 18 | 16 |
Feels °C | 17 | 18 | 16 | 18 | 20 | 13 | 17 | 16 | 18 | 21 | 21 | 18 | 18 | 17 | 16 | 14 | 14 | 15 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | SW 12 | WSW 7 | W 6 | W 7 | W 7 |
| kJ | 2 | 1 | 1 | 2 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 1 | 1 | 1 | 5 | 157 | 64 | 22 | 28 |
Swell 2 Height (m) Direction Period (s) | — | SW 18 | W 11 | W 7 | W 7 | SW 16 | S 16 | S 16 | SW 14 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | — | SW 12 | — | — | — |
| kJ | — | 12 | 2 | 1 | 1 | 10 | 5 | 5 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | — | 5 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 11 | SW 18 | — | — | W 7 | — | — | W 15 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 2 | 12 | — | — | 1 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | N 4 | N 3 | — | N 4 | N 4 | NNW 4 | N 4 | — | — | — | — | W 3 | W 3 | W 4 | W 5 | — | NNW 3 | NNW 5 | NNW 3 |
| kJ | — | — | 6 | 1 | — | 18 | 9 | 7 | 9 | — | — | — | — | 2 | 1 | 9 | 61 | — | 7 | 44 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 194 | 907 | 385 | 82 | 183 | 195 | 195 | 461 | 363 | 128 | 900 | 377 | 421 | 1972 | 406 | 783 | 1687 | 1 | 17 | 461 | 32 |
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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