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:
Copacabana surfForecast / Cantabria / Spain
48hr Weather and Surf, issued 6 pm Wednesday 10 Dec 2025 CETForecast update in hr min s Forecast update imminent
Copacabana surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Copacabana sea temperature is
14.9° C
(Which is slightly warmer than usual)How big are the waves at Copacabana today?
The current surf forecast for Copacabana at 10PM is: 1.8m 13s primary swell from a Northwest direction and 0.2m 7s secondary swell from a North direction (forecast issued at 06:00pm December 10). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | - | - |
| Afternoon (10 Dec) | 6ft (1.9m) | 14s |
| Evening (10 Dec) | 6ft (1.8m) | 13s |
Table - waves today at Copacabana. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 18 | 17 | 16 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1218 | 1067 | 1050 | 1050 | 864 | 1941 | 1838 | 1762 | 1363 | 1086 | 892 | 991 | 1429 | 1537 | 2167 | 3612 | 7322 | 10429 | 11691 | 11691 | 10462 | 8767 | 8038 | 7347 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | off | off | off | cross- off | cross- off | glass | cross- off | glass | cross- off | cross | cross- on | glass | glass | on | cross- on | cross | cross- on | on | cross- on | cross- off | glass | glass |
High Tide / height (m) | 8:57PM 2.96 | 9:18AM 3.21 | 10:00PM 2.81 | 10:22AM 3.02 | 11:07PM 2.75 | 11:28AM 2.91 | ||||||||||||||||||
Low Tide / height (m) | 2:36PM 0.61 | 2:49AM 0.86 | 3:37PM 0.81 | 3:52AM 1.03 | 4:40PM 0.94 | 4:59AM 1.12 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - | - | 8:38 | - |
| Sunset | 5:38 | - | - | - | - | - | - | - | 5:38 | - | - | - | - | - | - | - | 5:38 | - | - | - | - | - | - | - |
 |  |  | | | |  |  | | | | |  | | | | | | | | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 3 | - | - | - | - |
| Temp. °C | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 15 | 16 | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
| Feels °C (?) | 12 | 12 | 12 | 10 | 11 | 10 | 11 | 14 | 14 | 14 | 12 | 11 | 10 | 12 | 12 | 11 | 8 | 10 | 11 | 9 | 9 | 10 | 10 | 11 |
- 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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