Surf Forecasts:
Llantwit Major surf forecast from 10 Jul 2026:
- Most powerful swell: Friday 10 Jul, 1PM (local time) - 1.5ft (0.5m), 9s period, W swell with 40 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 0.5m 9s and forecast to arrive on Friday (Jul 10) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Jul 13) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Fri 10th Jul) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
Alright folks, Rusty here. Let's be straight with you. I've had a long look at the charts for Llantwit Major, and I'm not going to sugarcoat it: this is a grim run for the next two and a half weeks. We’ve got a solid 16-day window on the books, but the honest truth is there isn’t a single session where I’d tell you to grab your board and go. The forecast is a flat spell with hardly any energy.
Right now, the water there is sitting at a very unusual 66°F, which is a solid 7°F warmer than what you'd expect for July. That’s a real anomaly, but it doesn't help us when there’s nothing to ride.
The pattern starts off with tiny, weak swell. Friday the 10th, we’re looking at a 1ft to 2ft wind swell out of the west, with a short period of 9 seconds. The combined energy is only 26 to 39 (weak energy), and the wind is cross-off. It’s clean, but it’s just not surfable. Saturday and Sunday the 11th and 12th are even worse, dropping to 0.7ft and 0.3ft. The wind turns gusty offshore on Saturday afternoon, but with an 8-second period and about as much push as a bath toy, it’s a no-go.
We then hit a total dead zone. Monday the 13th through to the morning of Friday the 17th is essentially flat. The combined energy sits at zero or single digits. There’s a brief moment on Friday morning the 17th where we get some glassy conditions with a 0.7ft leftover, but the energy is only 5 (weak). It’s pretty, but useless.
Saturday the 18th sees a tiny bump. A 2ft to 3ft northerly swell with a very short period of just 5 seconds rolls in. The combined energy climbs to 44 (weak). The wind is cross-shore, so it’s choppy. This is kite-surfing territory at best—the setup is more interesting for a kite than a paddle board.
Through the end of the second week, things get a bit bigger, but wind becomes the enemy. From the 21st of July onward, we see a steady run of westerly swells climbing from 2ft up to 4ft by the 25th. The period is short (4 to 9 seconds). The combined energy hits moderate levels, peaking at 153 (moderate wave energy) on the afternoon of the 25th. But the trade-off is a persistent cross-onshore or onshore wind from the west-southwest, making everything lumpy and choppy. By the 25th, we have a clean 3ft to 4ft swell, but with a 30 km/h cross-onshore wind, it’s blown out. That’s a crying shame for what could have been a fun size.
To sum it up: there are no standout days. The whole 16-day outlook is a write-off for surfing. It’s a classic case of nothing on the horizon. We keep hoping the forecasts will change, but for now, this is a blank run.
- Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Fri afternoon, min 12°C on Sun night). Winds increasing (calm on Fri night, strong winds from the ENE by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 33°C on Wed afternoon, min 15°C on Mon night). Winds decreasing (strong winds from the ENE on Mon morning, light winds from the E by Wed afternoon). | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
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 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | ENE 4 | ENE 3 | W 13 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 26 | 39 | 21 | 5 | 5 | 5 | 1 | 1 | 1 | 0 | 0 | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 5 | 6 | 6 |
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 | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | glassy |
High Tide | 3:31PM7.64m | 4:06AM7.84m | 4:42PM8.00m | 5:14AM8.24m | 5:45PM8.54m | 6:15AM8.76m | 6:42PM9.14m | 7:09AM9.23m | 7:33PM9.65m | 7:59AM9.57m | 8:22PM9.99m | 8:47AM9.71m | 9:08PM10.09m | ||||||||
Low Tide | 9:29PM2.25m | 10:08AM2.10m | 10:44PM1.98m | 11:19AM1.80m | 11:55PM1.55m | 12:24PM1.39m | 00:57AM1.06m | 1:21PM0.97m | 1:52AM0.64m | 2:12PM0.65m | 2:42AM0.38m | 2:59PM0.50m | 3:28AM0.33m | ||||||||
 | |  | | | |  | |  | | | | | |  | | | | |  | | |
 | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — |
 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 31 | 28 | 28 | 31 | 25 | 26 | 30 | 22 | 23 | 30 | 24 | 28 | 32 | 27 | 29 | 33 | 28 | 27 | 25 | 23 |
Feels °C | 27 | 30 | 29 | 24 | 27 | 19 | 20 | 24 | 14 | 17 | 25 | 18 | 21 | 26 | 22 | 23 | 27 | 23 | 25 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | — | — | W 13 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 9 |
| kJ | 26 | 39 | 21 | 4 | 5 | 5 | 1 | 1 | 1 | — | — | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 5 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 8 | W 6 | — | — | — | — | — | — | — | — | W 18 | — | — | — | — | W 10 | — | — |
| kJ | — | — | — | 5 | 3 | — | — | — | — | — | — | — | — | 6 | — | — | — | — | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | NW 4 | — | — | — | — | — | — | — | — | — | W 8 | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 3 | ENE 4 | ENE 3 | ENE 4 | ENE 4 | ENE 4 | ENE 3 | ENE 3 | ENE 4 | ENE 4 | ENE 3 | NE 3 | ENE 3 | E 3 | NE 3 | ENE 3 | — |
| kJ | — | — | — | — | 2 | 8 | 7 | 11 | 18 | 11 | 8 | 3 | 11 | 11 | 3 | 2 | 3 | 3 | 2 | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 51 | 59 | 94 | 143 | 134 | 384 | 462 | 462 | 330 | 211 | 323 | 303 | 121 | 143 | 143 | 452 | 133 | 131 | 134 | 107 |
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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