Surf Forecasts:
Llantwit Major surf forecast from 11 Jul 2026:
- Most powerful swell: Friday 17 Jul, 10PM (local time) - 1.5ft (0.4m), 6s period, WSW swell with 14 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 0.4m 6s and forecast to arrive on Friday (Jul 17) 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 0.9m 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 | 10PM (Fri 17th Jul) | 1.5ft (0.4m) 6s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
Alright, let's talk about the next couple of weeks. The water temp is sitting at a warm 67°F, which is much warmer than normal for the time of year – you'll definitely be comfortable in a spring suit.
Right off the bat, it’s flat. No real surf from Saturday the 11th all the way through to nearly the end of the month. We’re looking at swell under 1ft for days on end, with short periods under 10 seconds and combined energy barely registering. The wind is mostly cross-off or even glassy at times, so if you wanna sit out there on a calm day, it’ll be pretty, but there’s nothing to ride.
Wednesday the 15th afternoon has a glass-off with a tiny 0.7ft swell – still not enough to do anything. The pattern stays poor until we see a change around the 21st. On Tuesday July 21st, the swell finally shows up at 4ft from the west, but it's short period at 6 seconds and the wind is onshore or cross-onshore and fresh. Combined energy is only around 90 – weak. It’s described as poor surf conditions. The 22nd and 23rd stay similar with 3ft to 4ft west swell, still cross-onshore and choppy, though energy gets into the 130-165 range on the 23rd – still only moderate.
Then comes the only real standout. On Saturday July 25th, the swell jumps to 7ft from the west with an 8-second period and combined energy hits 654 – that's strong. But the wind is a moderate cross-onshore, so it’s gonna be choppy. That size is for experienced surfers only, and with onshore wind, it’ll be messy at Llantwit Major (Wales). It’s a point break, so it can handle size better than a beach, but don't expect clean faces. The next day, Sunday the 26th, drops back to 3ft onshore. So if you’re an expert and just want some size, the 25th is your only play, but it won’t be pretty.
Given the long stretch of flat and poor conditions, this is a rough forecast for the area.
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Sat afternoon, min 14°C on Sun night). Winds increasing (light winds from the NE on Sat afternoon, strong winds from the ENE by Sun night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu afternoon. Warm (max 30°C on Tue afternoon, min 17°C on Thu night). Winds decreasing (fresh winds from the ENE on Tue night, calm by Wed afternoon). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | NE 4 | W 13 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 9 | W 8 | W 8 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 0 | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 9:32AM9.63m | 9:53PM9.94m | ||||||||
Low Tide | 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 | 3:43PM0.55m | ||||||||
 | |  | |  |  | |  | | | | | | | | |  |  |  | | | |
 | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — |
 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 2 | 5 | 2 |
Temp °C | 27 | 31 | 27 | 27 | 31 | 24 | 24 | 29 | 23 | 27 | 30 | 25 | 27 | 28 | 20 | 22 | 20 | 18 | 19 | 19 | 18 |
Feels °C | 24 | 29 | 22 | 22 | 26 | 17 | 17 | 24 | 17 | 22 | 25 | 19 | 26 | 29 | 20 | 22 | 18 | 17 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 8 | 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 | W 8 | W 8 | WSW 6 |
| kJ | 4 | 5 | 5 | 1 | 1 | 1 | 1 | — | 3 | 3 | 9 | 8 | 8 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 12 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 6 | — | — | — | — | — | — | W 8 | — | W 18 | — | — | — | W 3 | W 10 | — | — | — | — | W 8 |
| kJ | 5 | 3 | — | — | — | — | — | — | 1 | — | 6 | — | — | — | 1 | 2 | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | ENE 3 | NE 3 | ENE 4 | ENE 4 | ENE 4 | NE 4 | NE 4 | NE 4 | ENE 3 | — | ENE 2 | — | — | — | WNW 2 | — | — | — | — |
| kJ | — | — | 4 | 4 | 11 | 27 | 19 | 14 | 12 | 10 | 7 | — | 1 | — | — | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 148 | 94 | 143 | 261 | 286 | 330 | 454 | 143 | 111 | 94 | 143 | 177 | 261 | 355 | 355 | 475 | 127 | 489 | 798 | 124 |
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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