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:
S-Turns surfForecast / Carolina North / USA
48hr Weather and Surf, issued 6 am Saturday 13 Dec 2025 ESTForecast update in hr min s Forecast update imminent
S-Turns surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's S-Turns sea temperature is
10.9° C
(Which is 8.1°C colder than average for this time of year)How big are the waves at S-Turns today?
The current surf forecast for S-Turns at 10AM is: 0.3m 8s primary swell from a Southeast direction and 0.2m 5s secondary swell from a North-northeast direction, 0.2m 6s secondary swell from a South direction (forecast issued at 06:00am December 13). The wind direction is predicted to be cross-shore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 1ft (0.3m) | 8s |
| Afternoon (13 Dec) | 1ft (0.3m) | 8s |
| Evening (13 Dec) | 1ft (0.3m) | 7s |
Table - waves today at S-Turns. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 99 | 186 | 171 | 107 | 54 | 27 | 22 | 23 | 25 | 26 | 605 | 419 | 344 | 232 | 153 | 86 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off |
High Tide / height (m) | 5:21AM 0.14 | 5:38PM 0.14 | 6:20AM 0.15 | 6:32PM 0.13 | 7:11AM 0.15 | 7:23PM 0.12 | ||||||||||||||||||
Low Tide / height (m) | 11:51AM 0.05 | 12:39AM 0.05 | 12:56PM 0.05 | 1:34AM 0.05 | 2:00PM 0.05 | |||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:49 | - | - | - | - | - | - | - | 4:49 | - | - | - | - | - | - | - | 4:49 | - | - | - |
 | |  | | | | | | |  |  | |  |  | | | | |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 7 | 11 | 14 | 15 | 16 | 15 | 15 | 15 | 15 | 6 | 3 | 1 | 0 | -4 | -4 | -2 | -3 | -1 | -1 | 0 | 1 | 3 | 4 |
| Feels °C (?) | 4 | 3 | 7 | 11 | 11 | 11 | 10 | 11 | 10 | 10 | -5 | -9 | -11 | -13 | -18 | -17 | -14 | -14 | -11 | -8 | -5 | -5 | -4 | -5 |
- 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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