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:
Sker surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 11 am Tuesday 16 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Sker surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sker sea temperature is
10.2° C
(Which is slightly cooler than normal)How big are the waves at Sker today?
The current surf forecast for Sker at 3PM is: 1.2m 14s primary swell from a West-southwest direction (forecast issued at 11:00am December 16). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 4ft (1.2m) | 14s |
| Afternoon (16 Dec) | 4ft (1.2m) | 14s |
| Evening (16 Dec) | 3.5ft (1.1m) | 14s |
Table - waves today at Sker. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 8 | 9 | 10 | 11 | 11 | 11 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 557 | 549 | 542 | 452 | 446 | 433 | 439 | 357 | 257 | 339 | 637 | 1216 | 1594 | 1155 | 745 | 1239 | 3145 | 2893 | 2805 | 2807 | 3102 | 3663 | 4327 | 1021 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | glass | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- off | off | cross- off | cross | on | on | on | on | cross- on |
High Tide / height (m) | 3:59PM 6.90 | 4:23AM 7.08 | 4:44PM 7.18 | 5:04AM 7.40 | 5:24PM 7.46 | 5:43AM 7.70 | ||||||||||||||||||
Low Tide / height (m) | 9:42AM 2.36 | 10:05PM 2.18 | 10:29AM 2.09 | 10:48PM 1.94 | 11:10AM 1.81 | 11:28PM 1.70 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 8:14 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - |
 | |  |  | | | |  | |  | |  | | | | | |  |  | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 2 | 4 | 4 | 4 | 2 | - | - | - | 9 | 13 | 4 | - | - | 1 | - |
| Temp. °C | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 8 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 9 | 9 | 12 | 12 | 10 | 9 | 9 | 9 | 9 |
| Feels °C (?) | 5 | 5 | 6 | 5 | 6 | 5 | 2 | 2 | 3 | 1 | 1 | 1 | 2 | 8 | 8 | 6 | 5 | 5 | 1 | -1 | 0 | 0 | 0 | 0 |
- 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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