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:
Guarau surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 pm Thursday 11 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Guarau surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guarau sea temperature is
25.3° C
(Which is slightly warmer than usual)How big are the waves at Guarau today?
The current surf forecast for Guarau at 10PM is: 1.4m 13s primary swell from a South direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 02:00pm December 11). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | - | - |
| Afternoon (11 Dec) | 3.5ft (1.1m) | 13s |
| Evening (11 Dec) | 4.5ft (1.4m) | 13s |
Table - waves today at Guarau. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 86 | 380 | 522 | 643 | 648 | 618 | 598 | 511 | 486 | 377 | 302 | 291 | 233 | 180 | 173 | 136 | 136 | 104 | 102 | 104 | 80 | 80 | 80 | 78 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- off | cross- off | glass | cross- off | glass | cross- on | on | cross- off | cross- off | cross- off | cross- off | cross | glass | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass |
High Tide / height (m) | 6:50PM 0.99 | 8:13AM 0.88 | 8:08PM 0.95 | 9:28AM 0.88 | 9:46PM 0.94 | |||||||||||||||||||
Low Tide / height (m) | 11:00AM 0.72 | 2:49AM 0.49 | 3:36PM 0.70 | 4:09AM 0.51 | 4:39PM 0.60 | 5:09AM 0.49 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - |
| Sunset | - | - | 6:49 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - |
 | | |  | | | |  | |  |  |  | | | | |  | |  |  | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | 2 | 4 | 2 | 3 | 1 | 1 | 6 | 4 | - | - | - | 1 | 1 | - |
| Temp. °C | 31 | 31 | 26 | 23 | 23 | 23 | 22 | 27 | 30 | 25 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 23 | 23 | 22 | 22 | 25 |
| Feels °C (?) | 30 | 32 | 28 | 24 | 23 | 25 | 23 | 28 | 31 | 28 | 26 | 24 | 25 | 24 | 23 | 27 | 27 | 27 | 27 | 26 | 26 | 24 | 24 | 29 |
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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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