Surf Forecasts:
Llantwit Major surf forecast from 14 Jul 2026:
- Most powerful swell: Tuesday 14 Jul, 10PM (local time) - 0.5ft (0.2m), 10s period, W swell with 8 kJ wave energy.
Best Forecast Surf Conditions for Llantwit Major this week:
The most powerful waves expected at Llantwit Major in the next 16 days are 0.2m 10s and forecast to arrive on Tuesday (Jul 14) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Jul 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Tue 14th Jul) | 0.5ft (0.2m) 10s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up for us over the next couple of weeks.
To be straight with you, the first week and a half is a write-off. We’re looking at a long stretch of tiny, weak waves and mostly poor conditions that just aren’t worth paddling out for. It’s not until the very end of the window that we finally see a pulse of life.
The first day that offers anything worth mentioning is Monday, 27th July. Even then, it’s more about potential than pumping surf. The morning will see a small 2ft swell from the west, with a period of 10 seconds, and we’ll get a clean offshore wind from the ENE. The combined energy is weak (72). It’s surfable, but nothing to get excited about.
The standout moment of the whole forecast is the Monday afternoon of 27th July. The swell builds to 3ft from the west, with a period of 9 seconds, and the wind goes glassy, completely calm. That’s the kind of clean, smooth surface we dream about. The combined energy (157) is moderate, so there’s a bit of push behind it. This is the best on offer.
The Tuesday morning, 28th July, holds a little more hope, with a 2ft west swell, 9-second period, and glassy conditions again. The energy is weak (74), but it’ll be clean and cruisy. By Tuesday afternoon, the wind swings onshore and it gets choppy again, so make the most of the morning.
Everything before that is tiny, mostly under 1ft, and the few days after the 28th drop back into poor territory. The water temperature is a very unusual 67°F, which is much warmer than normal for the time of year at Llantwit Major. That’s a nice bonus for the sessions that do turn on.
So, if you’re patient, the Monday afternoon and Tuesday morning of the 27th and 28th are your windows. Don’t bother before that.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 16°C on Wed night). Winds decreasing (fresh winds from the ENE on Tue morning, light winds from the N by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 10 | W 8 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | NW 4 | W 8 | W 7 | W 7 | W 9 | W 8 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 9 | 8 | 8 | 6 | 6 | 2 | 6 | 6 | 5 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 2 | 1 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | glassy | cross-off | cross-on | off | cross-off | glassy | glassy | cross-on | cross-on | cross-off |
High Tide | 7:33PM9.65m | 7:59AM9.57m | 8:22PM9.99m | 8:47AM9.71m | 9:08PM10.09m | 9:32AM9.63m | 9:53PM9.94m | 10:16AM9.34m | 10:37PM9.54m | 11:00AM8.88m | 11:20PM8.96m | 11:44AM8.32m | 00:05AM8.28m | ||||||||
Low Tide | 1:21PM0.97m | 1:52AM0.64m | 2:12PM0.65m | 2:42AM0.38m | 2:59PM0.50m | 3:28AM0.33m | 3:43PM0.55m | 4:11AM0.50m | 4:25PM0.78m | 4:53AM0.86m | 5:06PM1.17m | 5:34AM1.34m | 5:48PM1.67m | ||||||||
 | |  | | | |  |  |  | | | | | | | | | | | | | |
 | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:19 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 28 | 25 | 26 | 29 | 26 | 26 | 28 | 25 | 25 | 26 | 21 | 23 | 24 | 21 | 22 | 25 | 23 | 23 | 25 | 24 |
Feels °C | 20 | 24 | 21 | 21 | 25 | 22 | 23 | 26 | 24 | 23 | 23 | 18 | 21 | 20 | 19 | 19 | 24 | 21 | 20 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | NW 4 | NW 4 | W 7 | — | — | W 8 | W 8 |
| kJ | 3 | 9 | 8 | 8 | 6 | 6 | 1 | 6 | 6 | 5 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | — | — | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | W 18 | — | — | — | — | W 10 | — | WNW 4 | NW 4 | — | — | — | — | W 8 | W 8 | NW 4 | W 7 | W 9 | — | W 11 |
| kJ | — | 6 | — | — | — | — | 2 | — | 1 | 1 | — | — | — | — | 1 | 1 | 1 | 1 | 2 | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | NE 3 | ENE 3 | NE 3 | NE 3 | ENE 2 | — | NE 2 | — | — | — | — | — | NW 2 | — | — | — | — | — | — | — |
| kJ | 4 | 2 | 8 | 2 | 3 | 1 | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 134 | 143 | 211 | 339 | 143 | 355 | 178 | 94 | 191 | 485 | 426 | 426 | 368 | 143 | 134 | 143 | 369 | 452 | 143 | |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Llantwit Major Surf forecast
The above surf forecast table for Llantwit Major provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Llantwit Major can be found by selecting the local surf guide option on the grey menu. Our Llantwit Major 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 (Llantwit Major) 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 Llantwit Major 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.
Llantwit Major is 8 km (5 miles) from the city of Nash Point. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Nash Point. Nash Point has rooms for a wide range of budgets as well as car hire and transport links.
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