Surf Forecasts:
How big are the waves at Llantwit Major today (18 Aug):
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.0m), 6s period with W swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.8m), 6s period with W swell.
The current surf forecast for Llantwit Major at 9PM is: 0.8m 6s primary swell from a West direction (forecast issued at 06:00pm August 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | - | - |
| Afternoon (18 Aug) | 3.5ft (1.0m) | 6s |
| Evening (18 Aug) | 2.5ft (0.8m) | 6s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Tue afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the W on Tue afternoon, calm by Fri morning). | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 4 | W 5 | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 79 | 61 | 50 | 38 | 50 | 63 | 48 | 32 | 25 | 51 | 64 | 97 | 138 | 152 | 150 | 123 | 142 | 96 | 56 |
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 | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | off |
High Tide | 11:22PM8.36m | 11:41AM7.90m | 00:02AM7.58m | 12:23PM7.20m | |||||||||||||||
Low Tide | 5:03PM1.47m | 5:24AM1.81m | 5:41PM2.10m | 6:03AM2.46m | 6:27PM2.74m | ||||||||||||||
 | |  |  |  |  |  | | | |  | | | | | | |  | | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | 8:30 | — | — | — | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:27 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 19 | 18 | 17 | 16 | 16 | 15 | 17 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 16 | 17 | 18 | 17 | 14 |
Feels °C | 14 | 14 | 14 | 13 | 13 | 13 | 15 | 14 | 12 | 12 | 12 | 13 | 12 | 11 | 12 | 12 | 13 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 6 | W 6 | W 6 | W 6 | W 9 | — | — | W 9 | W 6 | W 7 | W 7 | — | W 9 | — | WSW 9 | W 7 |
| kJ | — | — | — | 38 | 50 | 63 | 48 | 6 | — | — | 7 | 97 | 138 | 152 | — | 43 | — | 29 | 56 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | — | — | — | — | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | 41 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | W 6 | — | — | — | — | W 6 | W 4 | W 5 | W 6 | — | — | — | W 7 | W 7 | W 7 | W 7 | — |
| kJ | 79 | 61 | 50 | — | — | — | — | 32 | 25 | 51 | 64 | — | — | — | 150 | 123 | 142 | 96 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 452 | 349 | 136 | 58 | 39 | 58 | 127 | 300 | 349 | 349 | 300 | 187 | 173 | 39 | 88 | 88 | 88 | 9 | 0 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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