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:
La Boya surfForecast / South / Uruguay
48hr Weather and Surf, issued 2 pm Saturday 13 Dec 2025 -03Forecast update in hr min s Forecast update imminent
La Boya surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's La Boya sea temperature is
20.2° C
(Which is normal for this time of year)How big are the waves at La Boya today?
The current surf forecast for La Boya at 7PM is: 0.8m 10s primary swell from a East-southeast direction and 0.3m 3s secondary swell from a Southwest direction, 0.4m 3s secondary swell from a Southwest direction (forecast issued at 02:00pm December 13). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 2.5ft (0.8m) | 10s |
| Evening (13 Dec) | 3.5ft (1.1m) | 9s |
Table - waves today at La Boya. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 9 | 5 | 5 | 5 | 5 | 6 | 6 | 9 | 10 | 6 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 154 | 107 | 105 | 196 | 102 | 90 | 83 | 90 | 104 | 4 | 34 | 23 | 72 | 156 | 244 | 151 | 85 | 70 | 41 | 65 | 139 | 121 | 206 | 346 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross | cross | cross | cross- on | cross | cross- off | cross- off | cross- off | on | cross- on | on | on | on | cross- on | cross- on | on | glass | cross | cross- on | on | on | on |
High Tide / height (m) | 3:41PM 0.21 | 6:19PM 0.21 | 3:27AM 0.27 | 5:14PM 0.21 | 4:22AM 0.29 | 5:51PM 0.21 | 5:07AM 0.30 | |||||||||||||||||
Low Tide / height (m) | 10:33AM 0.07 | 5:10PM 0.21 | 10:39PM 0.14 | 11:31AM 0.06 | 11:26PM 0.15 | 12:25PM 0.05 | 12:09AM 0.16 | |||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:20 | - |
| Sunset | - | - | 7:46 | - | - | - | - | - | - | - | 7:47 | - | - | - | - | - | - | - | 7:47 | - | - | - | - | - |
 | |  |  |  | |  | | | | | | |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 27 | 25 | 21 | 21 | 20 | 20 | 23 | 26 | 23 | 22 | 21 | 21 | 19 | 19 | 20 | 20 | 20 | 21 | 19 | 18 | 17 | 17 | 18 |
| Feels °C (?) | 24 | 24 | 23 | 17 | 18 | 19 | 19 | 23 | 25 | 21 | 22 | 20 | 20 | 19 | 19 | 18 | 19 | 20 | 22 | 18 | 11 | 13 | 12 | 11 |
- 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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