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:
Casa Verde surfForecast / Piauí / Brazil
48hr Weather and Surf, issued 8 pm Friday 12 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Casa Verde surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Casa Verde sea temperature is
28.0° C
(Which is slightly warmer than usual)How big are the waves at Casa Verde today?
The current surf forecast for Casa Verde at 3AM is: 1.3m 5s primary swell from a East-northeast direction and 0.5m 14s secondary swell from a North direction, 0.5m 8s secondary swell from a North direction (forecast issued at 08:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 1.5ft (0.4m) | 14s |
| Afternoon (13 Dec) | 1.5ft (0.5m) | 15s |
| Evening (13 Dec) | 5ft (1.5m) | 6s |
Table - waves today at Casa Verde. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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) (?) | 15 | 6 | 6 | 14 | 5 | 14 | 15 | 15 | 15 | 6 | 6 | 14 | 5 | 14 | 5 | 5 | 5 | 6 | 6 | 21 | 20 | 19 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 150 | 120 | 105 | 90 | 83 | 66 | 110 | 106 | 115 | 138 | 107 | 61 | 50 | 57 | 76 | 89 | 96 | 131 | 97 | 83 | 73 | 66 | 77 | 140 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 11:27PM 2.45 | 12:01PM 2.47 | 12:30AM 2.45 | 12:56PM 2.52 | 1:26AM 2.48 | 1:46PM 2.58 | ||||||||||||||||||
Low Tide / height (m) | 5:25PM 0.85 | 5:55AM 0.82 | 6:29PM 0.82 | 6:53AM 0.81 | 7:26PM 0.76 | 7:45AM 0.78 | ||||||||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:31 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:50 |
 |  | | |  |  | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 26 | 25 | 25 | 28 | 30 | 30 | 27 | 27 | 26 | 26 | 26 | 28 | 30 | 30 | 27 | 27 | 26 | 26 | 25 | 27 | 30 | 30 |
| Feels °C (?) | 27 | 28 | 27 | 26 | 26 | 28 | 29 | 29 | 27 | 28 | 27 | 28 | 27 | 28 | 31 | 30 | 27 | 27 | 26 | 27 | 26 | 27 | 30 | 29 |
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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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