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 Saturday 13 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
22.5° C
(Which is normal for this time of year)How big are the waves at Tramandai today?
The current surf forecast for Tramandai at 7AM is: 1.2m 10s primary swell from a Southeast direction and 0.6m 9s secondary swell from a East-northeast direction (forecast issued at 02:00am December 13). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 4ft (1.2m) | 10s |
| Afternoon (13 Dec) | 3.5ft (1.1m) | 10s |
| Evening (13 Dec) | 3.5ft (1.0m) | 9s |
Table - waves today at Tramandai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 400 | 320 | 320 | 281 | 281 | 211 | 207 | 173 | 151 | 140 | 128 | 103 | 108 | 109 | 166 | 209 | 293 | 312 | 261 | 222 | 181 | 197 | 163 | 68 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 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 | 12:31AM 0.32 | 8:44AM 0.29 | 12:13PM 0.29 | ||||||||||||||
Low Tide / height (m) | 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 | 9:30PM 0.29 | 4:40AM 0.22 | 10:38AM 0.28 | 5:03PM 0.18 | |||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | 5:11 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:16 | - |
 | |  | | | | | | | | | | | | |  | | | | |  |  |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 21 | 1 |
| Temp. °C | 22 | 21 | 21 | 25 | 26 | 26 | 24 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 26 | 29 | 28 | 22 | 21 |
| Feels °C (?) | 23 | 22 | 22 | 27 | 26 | 25 | 24 | 22 | 22 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 21 | 21 | 23 | 28 | 31 | 30 | 21 | 21 |
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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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