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:
Ilha Comprida surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 am Thursday 11 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Ilha Comprida surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ilha Comprida sea temperature is
25.3° C
(Which is slightly warmer than usual)How big are the waves at Ilha Comprida today?
The current surf forecast for Ilha Comprida at 8AM is: 0.3m 10s primary swell from a East-southeast direction and 0.2m 11s secondary swell from a South-southeast direction (forecast issued at 02:00am December 11). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 1ft (0.3m) | 10s |
| Afternoon (11 Dec) | 2.5ft (0.7m) | 12s |
| Evening (11 Dec) | 3ft (0.9m) | 13s |
Table - waves today at Ilha Comprida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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 | 13 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 36 | 38 | 31 | 18 | 82 | 162 | 205 | 235 | 227 | 271 | 213 | 203 | 193 | 143 | 138 | 135 | 91 | 88 | 85 | 60 | 58 | 57 | 38 | 39 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | cross | on | cross- on | cross | glass | glass | off | glass | on | on | cross | cross | cross- on | cross | glass | cross- off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:26AM 0.96 | 7:11PM 1.03 | 2:24AM 0.55 | 8:27AM 0.93 | 2:19PM 0.77 | 8:27PM 1.00 | 9:34AM 0.94 | |||||||||||||||||
Low Tide / height (m) | 11:06AM 0.71 | 12:33AM 0.54 | 3:03AM 0.55 | 12:16PM 0.75 | 4:10PM 0.75 | 4:30AM 0.54 | 4:59PM 0.63 | |||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:53 | - |
 | |  | | | | | | |  |  | | |  |  |  |  | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 5 | - | 1 | 1 | 2 | - | - |
| Temp. °C | 26 | 24 | 23 | 27 | 30 | 30 | 26 | 24 | 22 | 22 | 21 | 25 | 29 | 25 | 24 | 24 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 23 |
| Feels °C (?) | 25 | 22 | 21 | 25 | 30 | 30 | 27 | 25 | 24 | 24 | 22 | 27 | 30 | 27 | 27 | 27 | 25 | 25 | 26 | 26 | 26 | 26 | 28 | 26 |
- 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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