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 11 pm Monday 15 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
16.3° C
(Which is slightly cooler than normal)How big are the waves at Cogumelo today?
The current surf forecast for Cogumelo at 5AM is: 4.0m 15s primary swell from a West-northwest direction and 1.4m 16s secondary swell from a Northwest direction (forecast issued at 11:00pm December 15). The wind direction is predicted to be cross-onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 16ft (5.0m) | 10s |
| Afternoon (16 Dec) | 20ft (6.0m) | 13s |
| Evening (16 Dec) | 18ft (5.5m) | 13s |
Table - waves today at Cogumelo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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 | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 9 | 15 | 10 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 23 | 21 | 21 | 19 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2510 | 2843 | 2055 | 7749 | 5404 | 10296 | 11437 | 11616 | 10704 | 9746 | 7036 | 5574 | 4649 | 3838 | 3170 | 2682 | 2143 | 1828 | 1523 | 1498 | 4939 | 14726 | 17136 | 15729 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- off | cross | cross | cross | cross- off | off | off | glass | cross- off | cross |
High Tide / height (m) | 11:46PM 2.28 | 12:05PM 2.26 | 12:28AM 2.39 | 12:47PM 2.33 | 1:06AM 2.49 | 1:27PM 2.39 | ||||||||||||||||||
Low Tide / height (m) | 5:56AM 0.74 | 6:11PM 0.67 | 6:39AM 0.64 | 6:50PM 0.60 | 7:17AM 0.54 | |||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:17 | - |
 |  |  | |  |  | |  |  |  | |  |  | | | | | | | |  | | | | |
Rain (mm) | 2 | 2 | 12 | 4 | 3 | 3 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 12 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 12 | 11 | 10 | 14 | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 15 |
| Feels °C (?) | 12 | 10 | 3 | 5 | 4 | 3 | 4 | 4 | 5 | 4 | 5 | 6 | 6 | 6 | 7 | 11 | 12 | 12 | 11 | 10 | 10 | 11 | 10 | 12 |
- 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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