Surf Forecasts:
Llantwit Major surf forecast from 5 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 1AM (local time) - 2ft (0.6m), 8s period, W swell with 49 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 0.6m 8s and forecast to arrive on Saturday (Jul 11) at 1AM. 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 Sunday (Jul 12) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 11th Jul) | 2ft (0.6m) 8s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, let me tell you straight up, the next sixteen days at Llantwit Major (Wales) are a bit of a write-off for us surfers. I’m looking at the charts and honestly, there’s nothing to get excited about. The swell is tiny and weak, with combined wave energy barely scraping into double digits – we’re talking values between (13) and (52) the whole time. That’s just not enough to push a rideable wave.
For the first week, from Sunday the 5th of July right through to Saturday the 11th, we’re stuck with weak, short-period wind swell from the west. Heights are hovering around 1 ft to 2 ft, with periods mostly under 9 seconds. It’s cross-onshore and choppy for the vast majority of that time, which is not going to be clean. Wednesday morning the 8th actually goes glassy, but with only 1 ft of swell and an energy reading of (13), it’s flat. You might find a knee-high dribbler on the cleaner mornings like Thursday the 9th or Friday the 10th when we get a light offshore from the east, but even then, it’s marginal at best. The water temperature is a notable 66°F, which is “much warmer than normal” for this time of year.
Then from Sunday the 12th right through to Monday the 20th, we’re in a prolonged flat spell. Swell heights drop to 0.3 ft or 0.7 ft, with the combined energy falling to single digits – as low as (1) on the 13th. Even the glassy mornings on Tuesday the 14th, Wednesday the 15th, and Saturday the 18th won’t save this. There are a few brief moments of offshore wind, like the Monday morning the 13th and Thursday morning the 16th, but with no swell to speak of, it’s a lake. This stretch is a full seven days of nothing. Even a fairly consistent spot like Llantwit Major can’t manufacture waves out of thin air.
Honestly, this looks more like a window for a paddle on a SUP than a surf. If the wind gets strong from the northwest or west-northwest, like it does on Saturday the 11th with 22 mph winds, the bay will be choppy and messy – better suited for a kite session than a surfboard.
It’s a tough one to report, but that’s how it goes sometimes. The sea will be flat and clean on those glassy days, perfect for a swim, just not for riding.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 15°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Thu afternoon, min 15°C on Fri night). Winds increasing (calm on Wed morning, fresh winds from the WNW by Fri night). | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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 6 | W 6 | W 9 | W 9 | W 5 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 6 | WNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 22 | 14 | 24 | 14 | 12 | 23 | 12 | 12 | 13 | 14 | 16 | 16 | 15 | 26 | 27 | 39 | 49 | 31 | 27 | 23 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | glassy | cross-off | cross-on | cross-off | cross-off | cross-on | cross-on | cross | cross | cross |
High Tide | 10:50AM8.28m | 11:09PM8.50m | 11:32AM8.10m | 11:53PM8.27m | 12:19PM7.88m | 00:43AM8.01m | 1:14PM7.67m | 1:42AM7.77m | 2:19PM7.55m | 2:52AM7.68m | 3:31PM7.64m | 4:06AM7.84m | 4:42PM8.00m | ||||||||
Low Tide | 4:50PM1.68m | 5:17AM1.70m | 5:30PM1.84m | 5:59AM1.84m | 6:17PM2.03m | 6:49AM2.01m | 7:12PM2.21m | 7:48AM2.15m | 8:17PM2.31m | 8:55AM2.21m | 9:29PM2.25m | 10:08AM2.10m | 10:44PM1.98m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | |  | |  | |
 | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — |
 | — | — | 9:31 | — | — | 9:30 | — | — | 9:30 | — | — | 9:30 | — | — | 9:29 | — | — | 9:29 | — | — | 9:28 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 |
Temp °C | 18 | 18 | 16 | 18 | 19 | 17 | 20 | 20 | 18 | 24 | 25 | 23 | 28 | 30 | 25 | 23 | 23 | 19 | 15 | 15 | 14 |
Feels °C | 16 | 15 | 15 | 15 | 16 | 16 | 18 | 17 | 16 | 24 | 23 | 23 | 28 | 29 | 25 | 22 | 21 | 17 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 9 | W 5 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 6 | WNW 5 |
| kJ | 37 | 14 | 8 | 24 | 12 | 12 | 23 | 12 | 12 | 13 | 14 | 16 | 16 | 15 | 26 | 27 | 39 | 49 | 31 | 27 | 23 |
Swell 2 Height (m) Direction Period (s) | W 9 | — | W 9 | — | — | W 5 | — | — | W 4 | — | — | — | — | — | — | NW 4 | — | — | — | W 8 | W 8 |
| kJ | 15 | — | 14 | — | — | 4 | — | — | 1 | — | — | — | — | — | — | 1 | — | — | — | 1 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | W 5 | — | W 4 | WNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 22 | — | — | 14 | — | 1 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 142 | 143 | 191 | 191 | 134 | 185 | 197 | 94 | 84 | 160 | 84 | 84 | 197 | 64 | 51 | 349 | 404 | 396 | 787 | 349 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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