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 8 am Friday 12 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
25.1° C
(Which is slightly warmer than usual)How big are the waves at Ilha Comprida today?
The current surf forecast for Ilha Comprida at 11AM is: 0.9m 12s primary swell from a South-southeast direction and 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 08:00am December 12). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3ft (0.9m) | 12s |
| Afternoon (12 Dec) | 2.5ft (0.8m) | 11s |
| Evening (12 Dec) | 2.5ft (0.8m) | 11s |
Table - waves today at Ilha Comprida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 263 | 206 | 196 | 143 | 138 | 133 | 88 | 83 | 82 | 59 | 59 | 58 | 58 | 57 | 37 | 39 | 38 | 38 | 18 | 18 | 30 | 59 | 59 | 18 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | glass | cross- off | cross- on | glass | glass | glass | glass | glass | cross- off | off | cross | cross | cross- off | cross- off | cross- off | off | glass | cross | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:27AM 0.93 | 2:19PM 0.77 | 8:27PM 1.00 | 9:34AM 0.94 | 9:52PM 1.01 | 10:39AM 0.99 | 11:12PM 1.07 | |||||||||||||||||
Low Tide / height (m) | 3:03AM 0.55 | 12:16PM 0.75 | 4:10PM 0.75 | 4:30AM 0.54 | 4:59PM 0.63 | 5:23AM 0.52 | 5:38PM 0.51 | |||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:53 | - | - | - | - | - | - | - | 6:53 | - | - | - |
 | |  | |  |  |  | |  | | | | |  | | | | | | | |  | |  | |
Rain (mm) | - | - | - | - | 1 | 2 | 8 | 2 | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 26 | 30 | 28 | 25 | 23 | 22 | 21 | 22 | 23 | 23 | 24 | 25 | 23 | 23 | 22 | 22 | 26 | 29 | 28 | 26 | 25 | 23 | 23 |
| Feels °C (?) | 21 | 27 | 31 | 30 | 28 | 27 | 26 | 24 | 26 | 27 | 26 | 27 | 28 | 25 | 27 | 25 | 24 | 29 | 32 | 31 | 28 | 28 | 26 | 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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