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:
Armacao surfForecast / Santa Catarina – Florianópolis / Brazil
48hr Weather and Surf, issued 8 pm Tuesday 16 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Armacao surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Armacao sea temperature is
24.4° C
(Which is normal for this time of year)How big are the waves at Armacao today?
The current surf forecast for Armacao at 3AM is: 0.3m 9s primary swell from a East-northeast direction (forecast issued at 08:00pm December 16). An open ocean swell of 1.4m 8s is not directed at the surf break, a second open ocean swell of 2.2m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 1ft (0.3m) | 8s |
| Afternoon (17 Dec) | - | - |
| Evening (17 Dec) | - | - |
Table - waves today at Armacao. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 9 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 2 | 3 | 8 | 4 | 4 | 4 | 4 | 4 | 8 | 8 | 8 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 11 | 11 | 16 | 15 | 14 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 44 | 12 | 9 | 7 | 5 | 22 | 12 | 15 | 50 | 20 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | off | cross- off | cross- off | cross | cross- on | glass | cross- on | cross | cross | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on |
High Tide / height (m) | 12:38AM 0.72 | 12:07PM 0.62 | 1:13AM 0.76 | 12:37PM 0.64 | 1:46AM 0.79 | 1:06PM 0.66 | ||||||||||||||||||
Low Tide / height (m) | 6:05PM 0.18 | 6:54AM 0.31 | 6:41PM 0.12 | 7:34AM 0.32 | 7:16PM 0.08 | 8:10AM 0.32 | ||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - |
| Sunset | 7:06 | - | - | - | - | - | - | - | 7:06 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - |
 |  | | |  | | | | | |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 21 | 19 | 19 | 21 | 21 | 22 | 22 | 21 | 20 | 19 | 19 | 22 | 25 | 24 | 23 | 21 | 21 | 21 | 20 | 24 | 26 | 26 |
| Feels °C (?) | 18 | 16 | 17 | 17 | 18 | 18 | 18 | 19 | 20 | 20 | 19 | 18 | 17 | 19 | 22 | 20 | 21 | 20 | 20 | 21 | 19 | 22 | 23 | 24 |
- 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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