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:
Tramandai surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 am Thursday 11 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Tramandai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tramandai sea temperature is
23.3° C
(Which is slightly warmer than usual)How big are the waves at Tramandai today?
The current surf forecast for Tramandai at 3PM is: 3.0m 11s primary swell from a South-southeast direction and 0.6m 12s secondary swell from a East-northeast direction (forecast issued at 08:00am December 11). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 11ft (3.5m) | 12s |
| Afternoon (11 Dec) | 10ft (3.0m) | 11s |
| Evening (11 Dec) | 8ft (2.5m) | 11s |
Table - waves today at Tramandai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4412 | 3575 | 2871 | 2612 | 2128 | 1675 | 1292 | 1040 | 807 | 720 | 578 | 520 | 427 | 371 | 320 | 320 | 275 | 251 | 211 | 207 | 177 | 154 | 128 | 362 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off | glass | cross | cross- on | cross- on | cross- off | off | off | glass | on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:11AM 0.29 | 10:49AM 0.42 | 3:46PM 0.46 | 10:29PM 0.19 | 4:56AM 0.29 | 11:27AM 0.38 | 4:39PM 0.40 | 11:12PM 0.23 | 5:49AM 0.28 | 11:58AM 0.34 | 5:45PM 0.34 | 11:53PM 0.28 | ||||||||||||
Low Tide / height (m) | 6:53AM 0.19 | 12:57PM 0.38 | 8:15PM 0.15 | 1:15AM 0.12 | 7:39AM 0.21 | 1:50PM 0.33 | 8:52PM 0.19 | 2:11AM 0.16 | 8:24AM 0.23 | 2:52PM 0.28 | 9:24PM 0.24 | |||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | 5:11 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - |
 |  | | | |  | | | |  | | |  |  |  | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 21 | 25 | 27 | 25 | 21 | 20 | 20 | 20 | 25 | 27 | 28 | 23 | 22 | 22 | 21 | 21 | 24 | 25 | 25 | 24 | 23 | 23 | 23 |
| Feels °C (?) | 14 | 16 | 20 | 22 | 23 | 21 | 20 | 19 | 20 | 25 | 29 | 28 | 24 | 23 | 24 | 23 | 23 | 26 | 25 | 25 | 24 | 22 | 23 | 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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