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 1 pm Tuesday 16 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
28.3° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Dunes today?
The current surf forecast for Dunes at 9PM is: 0.9m 9s primary swell from a East direction and 0.4m 14s secondary swell from a Northeast direction, 0.8m 4s secondary swell from a East-northeast direction (forecast issued at 01:00pm December 16). The wind direction is predicted to be cross-shore.
| Time (AST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 3.5ft (1.1m) | 9s |
| Afternoon (16 Dec) | 3.5ft (1.0m) | 9s |
| Evening (16 Dec) | 3ft (0.9m) | 9s |
Table - waves today at Dunes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 10 | 13 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 6 | 6 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 176 | 176 | 176 | 142 | 145 | 402 | 833 | 847 | 772 | 667 | 561 | 494 | 478 | 403 | 396 | 374 | 332 | 342 | 407 | 399 | 454 | 179 | 198 | 432 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 5:31PM 0.30 | 7:17AM 0.54 | 6:16PM 0.29 | 7:58AM 0.55 | 7:01PM 0.28 | |||||||||||||||||||
Low Tide / height (m) | 1:15PM 0.22 | 11:50PM 0.07 | 2:04PM 0.21 | 12:28AM 0.05 | 2:49PM 0.20 | 1:07AM 0.04 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 |
| Sunset | - | - | 5:53 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - |
 | |  |  | | | | | | | |  | | | |  | | | | | | | | | |
Rain (mm) | - | - | 2 | - | - | - | - | - | - | - | 3 | 1 | - | - | - | - | - | - | - | - | - | 1 | - | - |
| Temp. °C | 27 | 28 | 27 | 25 | 24 | 24 | 24 | 24 | 27 | 27 | 26 | 25 | 24 | 23 | 23 | 24 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 24 |
| Feels °C (?) | 29 | 29 | 28 | 27 | 25 | 25 | 25 | 25 | 27 | 26 | 27 | 27 | 25 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 |
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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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