Surf Forecasts:
Llantwit Major surf forecast from 7 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 4PM (local time) - 2.5ft (0.8m), 10s period, W swell with 123 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 0.8m 10s and forecast to arrive on Thursday (Aug 13) at 4PM. 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 Tuesday (Aug 11) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 13th Aug) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Llantwit Major over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s brewing for Llantwit Major.
Honestly, it’s a tough stretch ahead. The next few weeks are looking pretty flat and messy for our shores. There’s nothing on offer for the first several days, and the pattern is grim. The wind is mostly cross-onshore, and the swell is tiny. You’ll be waiting a long time for anything rideable.
The first chance of any kind of action comes on the morning of Wednesday, 12th August. The swell at Llantwit Major (point) bumps up to a tiny 1 ft from the WSW, with a period of 10 seconds. The combined swell energy is still weak (37). The wind is offshore from the ESE, so the conditions will be clean. It’s not much, but that’s the best we’ve seen in a while. Still, it’s a real knee-high dribbler, so don’t get your hopes up.
By Thursday morning, 13th August, the swell inches up to 2 ft but the wind swings onshore from the W at 15 mph, making it choppy. The energy is still weak (39). Not the day.
The morning of Wednesday, 19th August, brings a slight pulse. The swell reaches 4 ft from the W with an 8-second period, and the combined energy hits moderate (160). The wind is light and cross-shore from the NW. It’s still not great, but it’s the biggest swell we’ve seen. The same afternoon, the swell builds to 5 ft, energy climbs to 215, but it’s still cross-shore. For a point break, this is too weak and short-period to get excited about.
If you’re desperate, the Saturday morning of 22nd August has a 4 ft swell from the W, but the wind is cross-onshore at 15 mph, and the energy is moderate (131). It’s messy and small.
There’s no standout. No day where the stars align. The crowd profile says it’s sometimes busy, but with this quality, you’ll have the place to yourself. The water temperature is about 69°F, which is 8°F warmer than usual for this time of year – that’s very unusual, so at least the water is warm.
Save your energy. This run is a long one with barely a ripple. It’s one of those periods where you just wait for the next forecast change.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Sat morning, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Tue afternoon, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 | WNW 5 | W 4 | W 9 | W 9 | W 9 | W 8 | W 8 | WNW 3 | W 4 | W 5 | W 8 | W 8 | W 8 | W 8 | WSW 10 | W 10 | W 9 | W 8 | W 10 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 5 | 3 | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 5 | 5 | 5 | 5 | 4 | 37 | 48 | 40 | 35 | 123 | 61 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 1:44PM7.46m | 2:23AM7.38m | 3:06PM7.31m | 3:49AM7.39m | 4:28PM7.62m | 5:05AM7.83m | 5:37PM8.28m | 6:07AM8.48m | 6:33PM9.03m | 7:00AM9.11m | 7:22PM9.68m | 7:46AM9.59m | 8:07PM10.11m | ||||||||
Low Tide | 7:40PM2.47m | 8:22AM2.60m | 9:07PM2.63m | 9:54AM2.59m | 10:43PM2.36m | 11:21AM2.18m | 00:00AM1.76m | 12:27PM1.56m | 00:59AM1.09m | 1:18PM0.96m | 1:46AM0.55m | 2:02PM0.52m | 2:28AM0.21m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 21 | 21 | 19 | 21 | 21 | 18 | 23 | 24 | 24 | 26 | 30 | 24 | 27 | 23 | 19 | 20 | 19 | 18 |
Feels °C | 14 | 13 | 14 | 20 | 18 | 17 | 17 | 17 | 17 | 21 | 21 | 23 | 22 | 25 | 20 | 24 | 20 | 18 | 17 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 9 | W 4 | — | W 9 | W 9 | W 7 | W 8 | W 8 | W 4 | W 5 | W 5 | W 8 | W 8 | W 8 | WSW 10 | W 10 | W 9 | W 8 | — | W 9 |
| kJ | 2 | 2 | 3 | — | 2 | 2 | 1 | 1 | 1 | 1 | 5 | 2 | 5 | 5 | 4 | 37 | 48 | 40 | 35 | — | 61 |
Swell 2 Height (m) Direction Period (s) | W 9 | — | W 9 | W 9 | — | — | W 8 | W 6 | W 6 | W 8 | W 8 | W 8 | W 10 | W 10 | W 12 | — | — | — | W 12 | — | WSW 9 |
| kJ | 7 | — | 2 | 2 | — | — | 1 | 1 | 1 | 1 | 1 | 5 | 2 | 2 | 3 | — | — | — | 3 | — | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 7 | — | — | W 7 | — | W 6 | W 7 | W 6 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | — | — | 1 | — | 1 | 1 | 1 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 5 | — | — | — | — | — | — | WNW 3 | — | — | — | — | SE 3 | — | — | W 2 | W 3 | W 3 | W 10 | — |
| kJ | — | 5 | — | — | — | — | — | — | 2 | — | — | — | — | 2 | — | — | 1 | 1 | 1 | 123 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 336 | 336 | 434 | 211 | 211 | 196 | 356 | 465 | 214 | 196 | 196 | 143 | 356 | 436 | 94 | 21 | 142 | 39 | 43 | 197 | 32 |
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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