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Llantwit Major Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
Llantwit Major surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 6 pm Wednesday 20 May 2026 BSTForecast update in hr min s Forecast update imminent
Llantwit Major surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llantwit Major sea temperature is
12.6° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Llantwit Major today?
The current surf forecast for Llantwit Major at 2AM is: 1.1m 12s primary swell from a West direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3ft (0.9m) | 12s |
| Afternoon (21 May) | 2.5ft (0.8m) | 11s |
| Evening (21 May) | 2.5ft (0.8m) | 10s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Fri morning, min 13°C on Wed night). Winds decreasing (fresh winds from the WSW on Wed afternoon, calm by Thu morning). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | WSW 11 | WSW 11 | WSW 10 | W 10 | W 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
878 | 764 | 556 | 418 | 284 | 279 | 217 | 194 | 147 | 133 | 130 | 133 | 133 | 136 | 161 | 158 | 156 | 121 | 117 | 112 | 115 | 110 | 104 | 78 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | cross-on | on | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross | glassy | cross | cross-on | cross | cross-on | cross-on | |
High Tide | 10:21PM9.36m | 10:49AM8.76m | 11:14PM8.78m | 11:45AM8.10m | 00:13AM8.18m | 12:49PM7.54m | ||||||||||||||||||
Low Tide | 3:59PM1.02m | 4:32AM1.09m | 4:53PM1.53m | 5:32AM1.61m | 5:55PM2.04m | 6:39AM2.08m | ||||||||||||||||||
 |  |  |  |  | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — |
 | — | 9:05 | — | — | — | — | — | — | — | 9:06 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | 9:08 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 13 | 13 | 13 | 14 | 16 | 18 | 19 | 17 | 15 | 15 | 14 | 15 | 18 | 20 | 19 | 18 | 16 | 16 | 15 | 15 | 16 | 18 |
9 | 10 | 11 | 11 | 11 | 13 | 16 | 19 | 17 | 14 | 13 | 13 | 12 | 14 | 17 | 20 | 18 | 18 | 16 | 16 | 14 | 15 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | — | W 13 | W 13 | W 12 | W 12 | W 12 | WSW 11 | WSW 11 | WSW 10 | W 10 | W 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | — | 764 | 556 | 418 | 284 | 279 | 217 | 194 | 147 | 133 | 130 | 133 | 133 | 136 | 161 | 158 | 156 | 121 | 117 | 112 | 115 | 110 | 104 | 78 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 13 | W 13 | — | — | — | — | — | — | — | SSE 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 878 | 564 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 401 | 142 | 21 | 21 | 74 | 74 | 28 | 0 | 19 | 57 | 0 | 0 | 0 | 0 | 21 | 15 | 48 | 43 | 0 | 15 | 21 | 15 | 40 | 48 |
Best forecast wave conditions in Wales - South East | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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