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:
Tereza surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 8 am Monday 15 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Tereza surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tereza sea temperature is
25.1° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Tereza today?
The current surf forecast for Tereza at 11AM is: 1.7m 8s primary swell from a Southeast direction (forecast issued at 08:00am December 15). An open ocean swell of 1.5m 11s is not directed at the surf break, a second open ocean swell of 1.0m 15s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 5.5ft (1.7m) | 6s |
| Afternoon (15 Dec) | 6ft (1.8m) | 8s |
| Evening (15 Dec) | 6ft (1.8m) | 9s |
Table - waves today at Tereza. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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) (?) | 9 | 6 | 8 | 8 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 408 | 233 | 410 | 413 | 421 | 475 | 499 | 479 | 440 | 421 | 492 | 449 | 399 | 354 | 270 | 239 | 208 | 187 | 182 | 157 | 135 | 114 | 111 | 113 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:38AM 0.41 | 12:13AM 0.51 | 10:58AM 0.43 | 12:41AM 0.56 | 11:29AM 0.45 | 1:11AM 0.60 | ||||||||||||||||||
Low Tide / height (m) | 5:13AM 0.25 | 5:21PM 0.20 | 6:15AM 0.26 | 6:05PM 0.14 | 7:08AM 0.27 | 6:46PM 0.10 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 6:58 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:21 | - | - | - | - |
 |  |  |  |  |  | | | | | | | |  | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | 2 | - | - | - | - | - |
| Temp. °C | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 19 | 20 | 20 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 24 | 24 | 23 | 23 | 25 | 25 | 24 | 23 | 22 |
- Map Icons:
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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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