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Southerndown Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
Southerndown surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 12 pm Thursday 18 Sep 2025 BST
How big are the waves at Southerndown today?
The current surf forecast for Southerndown at 5PM is: 1.7m 11s primary swell from a West-southwest direction (forecast issued at 12:00pm September 18). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6ft (1.8m) | 12s |
| Afternoon (18 Sep) | 5.5ft (1.7m) | 11s |
| Evening (18 Sep) | 5ft (1.5m) | 11s |
Table - waves today at Southerndown. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 6 | 7 | 8 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 920 | 763 | 686 | 595 | 480 | 332 | 333 | 333 | 355 | 305 | 269 | 226 | 226 | 161 | 158 | 127 | 127 | 118 | 70 | 195 | 835 | 811 | 172 | 175 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | on | on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | on | cross | on | cross- on | cross | on | cross- on | cross- on | cross- on | on | on | off |
High Tide / height (m) | 5:05PM 7.24 | 5:34AM 7.31 | 5:54PM 7.84 | 6:17AM 7.86 | 6:34PM 8.35 | 6:54AM 8.30 | ||||||||||||||||||
Low Tide / height (m) | 11:00AM 2.32 | 11:33PM 1.86 | 11:50AM 1.74 | 12:16AM 1.32 | 12:29PM 1.24 | 12:50AM 0.90 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 |
| Sunset | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:21 | - | - | - | - | - | - | - | 7:17 | - | - | - | - |
 |  | | |  | | | |  | | | |  |  | |  | | | | | | |  | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | - | - | - | 1 | - |
| Temp. °C | 18 | 19 | 19 | 18 | 17 | 17 | 16 | 16 | 17 | 20 | 20 | 18 | 16 | 15 | 16 | 16 | 16 | 17 | 14 | 14 | 12 | 12 | 13 | 12 |
| Feels °C (?) | 14 | 16 | 16 | 15 | 15 | 16 | 16 | 15 | 16 | 18 | 19 | 17 | 16 | 14 | 16 | 16 | 15 | 13 | 7 | 8 | 7 | 9 | 11 | 11 |
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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
Continuing clean conditions at Southerndown (light winds from the SSE at St Athan 13 km from Southerndown). 1.4m 11s groundswell from the WSW with a 0.5m 11s groundswell from the W. 2 swells combining to make bigger set waves.
1 h 16 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Southerndown surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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