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 2 am Friday 12 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
23.2° C
(Which is slightly warmer than usual)How big are the waves at Tramandai today?
The current surf forecast for Tramandai at 4AM is: 2.2m 10s primary swell from a South-southeast direction and 0.5m 10s secondary swell from a East-northeast direction (forecast issued at 02:00am December 12). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 6ft (1.9m) | 10s |
| Afternoon (12 Dec) | 5ft (1.6m) | 10s |
| Evening (12 Dec) | 4.5ft (1.4m) | 10s |
Table - waves today at Tramandai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 6 | 9 | 9 | 10 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1292 | 1040 | 807 | 706 | 578 | 510 | 448 | 371 | 371 | 327 | 320 | 281 | 281 | 216 | 211 | 260 | 128 | 128 | 108 | 403 | 450 | 456 | 407 | 355 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | off | off | glass | cross- off | cross- off | cross- off | off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 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 | 6:57AM 0.28 | 12:19PM 0.31 | 7:45PM 0.29 | |||||||||||||
Low Tide / height (m) | 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 | 3:17AM 0.20 | 9:11AM 0.26 | 4:00PM 0.23 | |||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | 5:11 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:16 | - |
 | |  | |  | | |  | | | | | | | |  | | |  | | | | | | |
Rain (mm) | - | - | - | - | 1 | 1 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 20 | 20 | 25 | 27 | 27 | 25 | 23 | 21 | 20 | 20 | 24 | 25 | 25 | 23 | 22 | 22 | 22 | 22 | 24 | 25 | 25 | 24 | 23 |
| Feels °C (?) | 22 | 20 | 20 | 26 | 28 | 29 | 27 | 25 | 22 | 20 | 21 | 24 | 24 | 24 | 22 | 21 | 21 | 21 | 22 | 24 | 25 | 25 | 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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