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 pm Monday 15 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
25.2° C
(Which is slightly warmer than usual)How big are the waves at Ilha Comprida today?
The current surf forecast for Ilha Comprida at 11PM is: 0.4m 10s primary swell from a Southeast direction and 0.5m 4s secondary swell from a East direction (forecast issued at 08:00pm December 15). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | - | - |
| Afternoon (15 Dec) | - | - |
| Evening (15 Dec) | 1.5ft (0.4m) | 10s |
Table - waves today at Ilha Comprida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 6 | 4 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 27 | 25 | 24 | 23 | 15 | 26 | 14 | 24 | 100 | 172 | 183 | 161 | 171 | 136 | 133 | 110 | 110 | 217 | 171 | 84 | 91 | 47 | 49 | 28 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross- on | cross | cross- off | off | off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:13AM 1.15 | 12:17PM 1.09 | 1:00AM 1.23 | 12:56PM 1.14 | 1:39AM 1.30 | 1:31PM 1.18 | ||||||||||||||||||
Low Tide / height (m) | 6:14PM 0.39 | 6:45AM 0.45 | 6:46PM 0.29 | 7:21AM 0.42 | 7:17PM 0.21 | 7:53AM 0.41 | ||||||||||||||||||
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - |
| Sunset | 6:54 | - | - | - | - | - | - | - | 6:55 | - | - | - | - | - | - | - | 6:55 | - | - | - | - | - | - | - |
 |  |  | |  | |  | | |  |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 11 | 6 | 2 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 30 | 28 | 26 | 25 | 25 | 24 | 25 | 29 | 30 | 23 | 22 | 23 | 23 | 24 | 23 | 24 | 24 | 24 | 23 | 22 | 22 | 21 | 21 | 22 |
| Feels °C (?) | 34 | 30 | 28 | 28 | 29 | 27 | 28 | 32 | 31 | 21 | 21 | 21 | 20 | 22 | 21 | 22 | 22 | 22 | 21 | 20 | 21 | 20 | 21 | 21 |
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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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