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Trecco Bay Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
Trecco Bay surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 12 am Sunday 14 Sep 2025 BST
How big are the waves at Trecco Bay today?
The current surf forecast for Trecco Bay at 1AM is: 1.1m 7s primary swell from a West-southwest direction and 0.8m 9s secondary swell from a West-southwest direction (forecast issued at 12:00am September 14). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 3ft (0.9m) | 8s |
| Afternoon (14 Sep) | 5.5ft (1.7m) | 6s |
| Evening (14 Sep) | 8ft (2.5m) | 9s |
Table - waves today at Trecco Bay. (Swell directed towards the surf break)
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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 | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 8 | 8 | 8 | 6 | 8 | 9 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 193 | 136 | 86 | 107 | 87 | 67 | 233 | 819 | 1157 | 1758 | 2824 | 3770 | 4322 | 5041 | 4565 | 4190 | 3303 | 2780 | 2293 | 1676 | 1316 | 953 | 741 | 512 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 11:17PM 7.86 | 11:43AM 7.48 | 12:17AM 7.03 | 12:51PM 6.78 | 1:38AM 6.39 | 2:24PM 6.42 | ||||||||||||||||||
Low Tide / height (m) | 5:14AM 1.65 | 5:45PM 1.93 | 6:17AM 2.42 | 7:05PM 2.60 | 7:53AM 2.92 | |||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:50 | - | - | - | - |
| Sunset | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:28 |
 |  |  |  | |  |  |  | |  | | | | | | |  | | | |  | | | | |
Rain (mm) | 1 | - | - | - | - | 5 | 9 | 12 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 14 | 13 | 14 | 14 | 18 | 17 | 16 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 15 |
| Feels °C (?) | 10 | 11 | 11 | 10 | 10 | 8 | 12 | 8 | 6 | 4 | 3 | 4 | 3 | 4 | 4 | 4 | 4 | 5 | 4 | 7 | 9 | 8 | 9 | 10 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - South East
Still cross-shore at Trecco Bay (light winds from the W at St Athan 20 km from Trecco Bay). 1.1m 8s swell from the W with a 0.5m 10s swell, also from the W. 2 swells combining to make bigger set waves.
20 km away, 1 h 26 min ago
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