Surf Forecasts:
How big are the waves at Llantwit Major today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 7s period with W swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 4.5ft (1.3m), 6s period with W swell.
- Evening surf: Evening surf (18 Sep, local time) - 5ft (1.6m), 7s period with W swell.
The current surf forecast for Llantwit Major at 10AM is: 1.1m 7s primary swell from a West direction (forecast issued at 06:00am September 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.1m) | 7s |
| Afternoon (18 Sep) | 4.5ft (1.3m) | 6s |
| Evening (18 Sep) | 5ft (1.6m) | 7s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 18°C on Sat morning, min 14°C on Sat night). Winds decreasing (fresh winds from the WSW on Fri afternoon, light winds from the WNW by Sun night). | |||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 7 | W 6 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 10 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 142 | 142 | 113 | 131 | 118 | 190 | 279 | 310 | 307 | 302 | 346 | 350 | 314 | 198 | 160 | 106 | 78 | 76 | 58 | 118 | 83 | 57 | 57 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross |
High Tide | 11:37AM7.28m | 00:01AM6.82m | 12:27PM6.60m | 1:05AM6.19m | 1:52PM6.13m | ||||||||||||||||||
Low Tide | 5:15AM2.48m | 5:40PM2.75m | 6:03AM3.13m | 6:41PM3.37m | 7:20AM3.64m | 8:22PM3.70m | |||||||||||||||||
 |  | | | | |  | | | |  |  |  | | | | | | | | | |  | |
 | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 17 | 18 | 18 | 17 | 16 | 15 | 15 | 14 | 15 | 15 | 16 | 16 | 15 |
Feels °C | 9 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 11 | 12 | 14 | 13 | 13 | 12 | 12 | 13 | 12 | 13 | 13 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 7 | W 7 | W 7 | W 7 | W 10 | W 9 | W 9 | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 106 | 78 | 76 | 58 | 118 | 83 | 57 | 57 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 10 | WSW 10 | W 10 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 33 | 48 | 31 | 30 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 7 | W 6 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | — | — | — | — | — | — | — | — |
| kJ | 142 | 142 | 113 | 131 | 118 | 190 | 279 | 310 | 307 | 302 | 346 | 350 | 314 | 198 | 160 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 300 | 129 | 349 | 355 | 355 | 355 | 300 | 300 | 300 | 286 | 300 | 316 | 355 | 155 | 84 | 129 | 39 | 15 | 15 | 39 | 58 | 57 | 59 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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