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:
Cogumelo surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 5 pm Wednesday 10 Dec 2025 WETForecast update in hr min s Forecast update imminent
Cogumelo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cogumelo sea temperature is
16.4° C
(Which is slightly cooler than normal)How big are the waves at Cogumelo today?
The current surf forecast for Cogumelo at 10PM is: 3.0m 13s primary swell from a West-northwest direction (forecast issued at 05:00pm December 10). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | - | - |
| Afternoon (10 Dec) | 11ft (3.5m) | 13s |
| Evening (10 Dec) | 10ft (3.0m) | 13s |
Table - waves today at Cogumelo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 19 | 19 | 18 | 18 | 18 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3662 | 3406 | 3214 | 3489 | 3642 | 3662 | 3281 | 2778 | 2288 | 1803 | 1127 | 1367 | 2130 | 2275 | 2056 | 2742 | 10379 | 17748 | 19925 | 17083 | 15419 | 14237 | 13120 | 10808 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | off | cross- off | off | cross- on | cross- on | glass | glass | cross- off | cross- off | cross | cross- on | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:50PM 2.20 | 7:10AM 2.46 | 7:54PM 2.10 | 8:14AM 2.32 | 9:00PM 2.07 | 9:19AM 2.23 | ||||||||||||||||||
Low Tide / height (m) | 12:37PM 0.51 | 12:42AM 0.73 | 1:39PM 0.65 | 1:48AM 0.85 | 2:44PM 0.75 | 2:59AM 0.91 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:41 | - |
| Sunset | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - |
 |  |  | | | |  | | |  |  | | | |  |  | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | - | 2 | 4 | 9 | 1 | 1 | 1 | 1 | - | - | - | - | - |
| Temp. °C | 15 | 15 | 13 | 12 | 12 | 12 | 13 | 15 | 15 | 15 | 14 | 14 | 13 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 14 |
| Feels °C (?) | 11 | 13 | 10 | 10 | 10 | 11 | 12 | 14 | 14 | 15 | 13 | 13 | 11 | 10 | 11 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 10 |
- 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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