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:
Dunes surfForecast / Puerto Rico / Puerto Rico
48hr Weather and Surf, issued 7 am Saturday 13 Dec 2025 ASTForecast update in hr min s Forecast update imminent
Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunes sea temperature is
28.2° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Dunes today?
The current surf forecast for Dunes at 3PM is: 1.6m 9s primary swell from a East direction and 0.6m 11s secondary swell from a North-northeast direction, 0.3m 14s secondary swell from a North-northeast direction (forecast issued at 07:00am December 13). The wind direction is predicted to be cross-shore.
| Time (AST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 4ft (1.2m) | 9s |
| Afternoon (13 Dec) | 5ft (1.6m) | 9s |
| Evening (13 Dec) | 5.5ft (1.7m) | 6s |
Table - waves today at Dunes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 9 | 9 | 9 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 173 | 220 | 276 | 412 | 257 | 225 | 270 | 295 | 393 | 432 | 393 | 412 | 495 | 484 | 440 | 405 | 423 | 363 | 363 | 315 | 322 | 315 | 271 | 265 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross | cross | cross | cross | cross | cross- off | cross | cross- on | cross | off | cross- off | cross- off | cross- off | cross- off | cross | on | cross- on | cross- on | cross | cross |
High Tide / height (m) | 4:01AM 0.46 | 3:24PM 0.41 | 4:59AM 0.49 | 4:06PM 0.36 | 5:49AM 0.51 | 4:48PM 0.33 | ||||||||||||||||||
Low Tide / height (m) | 10:07AM 0.24 | 10:01PM 0.12 | 11:18AM 0.25 | 10:37PM 0.10 | 12:20PM 0.24 | 11:13PM 0.09 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:53 | - | - | - |
 |  | | | | | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 27 | 29 | 27 | 26 | 25 | 24 | 24 | 24 | 29 | 30 | 28 | 26 | 25 | 24 | 23 | 23 | 27 | 27 | 26 | 25 | 25 | 24 |
| Feels °C (?) | 25 | 25 | 26 | 27 | 25 | 25 | 26 | 24 | 25 | 25 | 30 | 29 | 29 | 29 | 28 | 26 | 25 | 24 | 29 | 28 | 28 | 27 | 27 | 26 |
- 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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