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:
Itapema - Sul surfForecast / Santa Catarina – Norte / Brazil
48hr Weather and Surf, issued 2 am Friday 12 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Itapema - Sul surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Itapema - Sul sea temperature is
24.5° C
(Which is normal for this time of year)| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | 1ft (0.3m) | 3s |
| Evening (12 Dec) | 1.5ft (0.4m) | 4s |
Table - waves today at Itapema - Sul. (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) (?) | 12 | 12 | 12 | 11 | 11 | 3 | 3 | 4 | 10 | 10 | 4 | 10 | 4 | 5 | 5 | 10 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 5 | 0 | 0 | 4 | 0 | 6 | 25 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | on | on | on | cross- on | on | cross- on | glass | glass | cross- off | glass | glass | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 7:40AM 0.64 | 11:09AM 0.60 | 7:29PM 0.72 | 8:27AM 0.62 | 8:36PM 0.68 | 9:57AM 0.62 | ||||||||||||||||||
Low Tide / height (m) | 2:45AM 0.30 | 10:09AM 0.59 | 3:38PM 0.49 | 4:14AM 0.30 | 4:40PM 0.40 | 5:04AM 0.28 | 5:18PM 0.30 | |||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:02 | - | - | - | - | - | - | - | 7:02 | - |
 | |  | |  | | |  |  | | |  | |  | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | 2 | 1 | - | - | - | 1 | - | - | - | - | 1 | - | - |
| Temp. °C | 21 | 20 | 19 | 24 | 26 | 25 | 24 | 22 | 21 | 21 | 21 | 20 | 21 | 23 | 23 | 22 | 22 | 21 | 22 | 23 | 25 | 26 | 25 | 24 |
| Feels °C (?) | 22 | 20 | 19 | 24 | 25 | 26 | 24 | 23 | 22 | 21 | 22 | 22 | 24 | 26 | 25 | 25 | 26 | 23 | 25 | 27 | 27 | 29 | 28 | 28 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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