Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Southerndown surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 5 am Saturday 13 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Southerndown surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Southerndown sea temperature is
10.4° C
(Which is slightly cooler than normal)How big are the waves at Southerndown today?
The current surf forecast for Southerndown at 7AM is: 1.5m 16s primary swell from a West-southwest direction (forecast issued at 05:00am December 13). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 5ft (1.5m) | 16s |
| Afternoon (13 Dec) | 5ft (1.5m) | 14s |
| Evening (13 Dec) | 5ft (1.5m) | 8s |
Table - waves today at Southerndown. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 16 | 16 | 15 | 14 | 14 | 8 | 9 | 9 | 9 | 9 | 12 | 10 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 13 | 13 | 13 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1480 | 1230 | 1107 | 904 | 886 | 955 | 274 | 464 | 497 | 459 | 480 | 1069 | 955 | 1102 | 1236 | 1281 | 1328 | 1375 | 1134 | 860 | 951 | 905 | 732 | 569 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | 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- on | cross- off |
High Tide / height (m) | 12:30AM 6.50 | 1:00PM 6.67 | 1:38AM 6.40 | 2:07PM 6.58 | 2:42AM 6.51 | 3:07PM 6.68 | ||||||||||||||||||
Low Tide / height (m) | 6:42AM 2.59 | 7:23PM 2.51 | 7:48AM 2.67 | 8:24PM 2.51 | 8:49AM 2.57 | 9:18PM 2.39 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 8:10 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - | - | - |
 | |  | |  |  |  | | | | | | | | | |  |  |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 8 | 3 | 3 | 1 | 1 | 3 | 3 |
| Temp. °C | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 10 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 9 |
| Feels °C (?) | 5 | 6 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 5 | 5 | 5 | 5 | 4 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 3 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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