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:
Estaleirinho surfForecast / Santa Catarina – Norte / Brazil
48hr Weather and Surf, issued 2 am Wednesday 17 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Estaleirinho surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Estaleirinho sea temperature is
25.0° C
(Which is slightly warmer than usual)How big are the waves at Estaleirinho today?
The current surf forecast for Estaleirinho at 8AM is: 1.8m 8s primary swell from a South-southeast direction and 1.0m 9s secondary swell from a Southeast direction, 0.4m 8s secondary swell from a East-northeast direction (forecast issued at 02:00am December 17). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 5.5ft (1.7m) | 8s |
| Afternoon (17 Dec) | 1.5ft (0.5m) | 9s |
| Evening (17 Dec) | 1.5ft (0.5m) | 8s |
Table - waves today at Estaleirinho. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 10 | 9 | 8 | 8 | 11 | 11 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 11 | 5 | 5 | 5 | 5 | 5 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 338 | 669 | 521 | 389 | 46 | 43 | 40 | 39 | 38 | 42 | 30 | 41 | 36 | 21 | 24 | 24 | 20 | 18 | 19 | 13 | 13 | 13 | 18 | 23 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross | cross- on | on | on | on | cross- on | cross | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:39AM 0.90 | 12:30PM 0.80 | 1:19AM 0.95 | 1:05PM 0.82 | 1:56AM 0.98 | 1:38PM 0.84 | ||||||||||||||||||
Low Tide / height (m) | 7:03AM 0.36 | 6:45PM 0.16 | 7:37AM 0.36 | 7:16PM 0.11 | 8:07AM 0.36 | 7:47PM 0.08 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:06 | - | - | - | - | - | - | - | 7:06 | - |
 |  |  | | | | | | | | | | | | | | | |  | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 19 | 18 | 21 | 22 | 23 | 22 | 21 | 20 | 20 | 20 | 22 | 24 | 23 | 23 | 21 | 22 | 22 | 21 | 24 | 26 | 25 | 24 | 23 |
| Feels °C (?) | 18 | 18 | 17 | 19 | 19 | 21 | 20 | 20 | 19 | 20 | 20 | 21 | 22 | 21 | 21 | 20 | 22 | 22 | 22 | 25 | 26 | 25 | 24 | 24 |
- 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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