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 am Tuesday 16 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
16.5° C
(Which is slightly cooler than normal)How big are the waves at Cogumelo today?
The current surf forecast for Cogumelo at 5PM is: 6.0m 13s primary swell from a Northwest direction (forecast issued at 11:00am December 16). 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 | Friday 19 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 23 | 21 | 20 | 19 | 19 | 17 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5943 | 10348 | 11675 | 11867 | 10867 | 9485 | 6937 | 5404 | 4649 | 3521 | 3170 | 2576 | 2111 | 1828 | 1523 | 1688 | 4939 | 13862 | 15640 | 15000 | 14533 | 11713 | 12170 | 10044 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | glass | glass | cross- off | cross- off | cross | cross- on | cross | cross | cross | cross | cross- off |
High Tide / height (m) | 12:05PM 2.26 | 12:28AM 2.39 | 12:47PM 2.33 | 1:06AM 2.49 | 1:27PM 2.39 | 1:43AM 2.57 | ||||||||||||||||||
Low Tide / height (m) | 6:11PM 0.67 | 6:39AM 0.64 | 6:50PM 0.60 | 7:17AM 0.54 | 7:26PM 0.54 | |||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:16 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - |
 |  |  |  |  | |  | |  | |  | | | | | | | |  | | | |  | | |
Rain (mm) | 7 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 13 | 16 | 14 | 13 | 13 | 12 | 12 | 12 | 15 | 16 | 15 | 14 | 14 | 13 | 13 |
| Feels °C (?) | 4 | 4 | 4 | 4 | 5 | 7 | 7 | 7 | 7 | 9 | 14 | 12 | 11 | 12 | 11 | 10 | 10 | 13 | 14 | 13 | 12 | 13 | 12 | 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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