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 11 pm 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 2AM is: 1.9m 9s primary swell from a West-southwest direction and 1.5m 9s secondary swell from a West direction, 0.7m 13s secondary swell from a West direction (forecast issued at 11:00pm December 13). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 6.5ft (2.0m) | 12s |
| Afternoon (14 Dec) | 7ft (2.1m) | 12s |
| Evening (14 Dec) | 7.5ft (2.3m) | 11s |
Table - waves today at Southerndown. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 9 | 9 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 315 | 453 | 575 | 520 | 1069 | 1186 | 1186 | 1144 | 1259 | 1314 | 1330 | 1375 | 991 | 749 | 700 | 690 | 586 | 522 | 504 | 433 | 472 | 472 | 459 | 452 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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- off | off | cross- off | cross- off | cross- off | cross | cross- off | cross |
High Tide / height (m) | 1:38AM 6.40 | 2:07PM 6.58 | 2:42AM 6.51 | 3:07PM 6.68 | 3:36AM 6.76 | 3:59PM 6.90 | ||||||||||||||||||
Low Tide / height (m) | 7:23PM 2.51 | 7:48AM 2.67 | 8:24PM 2.51 | 8:49AM 2.57 | 9:18PM 2.39 | 9:42AM 2.36 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - | - | - | - | - | - | - | 4:05 | - |
 | |  |  |  |  | | |  | |  | |  |  | | | | |  | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 3 | 7 | 8 | 7 | 4 | 6 | 1 | 1 | 6 | 11 | 3 | - | - | - | - |
| Temp. °C | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 11 | 11 | 10 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 8 | 9 | 8 |
| Feels °C (?) | 4 | 4 | 3 | 5 | 5 | 5 | 5 | 6 | 6 | 5 | 4 | 4 | 4 | 6 | 7 | 7 | 7 | 6 | 2 | 2 | 3 | 4 | 6 | 4 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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