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:
Carcavelos surfForecast / Lisboa / Portugal
48hr Weather and Surf, issued 11 pm Wednesday 10 Dec 2025 WETForecast update in hr min s Forecast update imminent
Carcavelos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Carcavelos sea temperature is
15.6° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Carcavelos today?
The current surf forecast for Carcavelos at 6AM is: 3.5m 14s primary swell from a West-northwest direction (forecast issued at 11:00pm December 10). The wind direction is predicted to be glassy and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 10ft (3.0m) | 13s |
| Afternoon (11 Dec) | 8ft (2.5m) | 13s |
| Evening (11 Dec) | 7ft (2.2m) | 13s |
Table - waves today at Carcavelos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 16 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3453 | 3912 | 3890 | 3820 | 3219 | 2549 | 2084 | 1703 | 1699 | 2373 | 2906 | 2640 | 3717 | 7827 | 13881 | 17189 | 20680 | 21108 | 18200 | 15822 | 13204 | 10484 | 8020 | 6776 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | glass | glass | cross | on | on | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off |
High Tide / height (m) | 6:55PM 2.19 | 7:15AM 2.45 | 7:58PM 2.09 | 8:18AM 2.31 | 9:05PM 2.06 | 9:24AM 2.21 | ||||||||||||||||||
Low Tide / height (m) | 12:48AM 0.72 | 1:44PM 0.64 | 1:53AM 0.84 | 2:49PM 0.74 | 3:04AM 0.90 | 3:52PM 0.77 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:46 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 | | | |  |  | |  | | |  | |  |  | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 3 | 5 | 5 | 9 | 2 | 3 | 1 | 1 | - | - | - | - | - | - |
| Temp. °C | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 14 | 15 | 15 |
| Feels °C (?) | 11 | 10 | 10 | 11 | 12 | 12 | 12 | 13 | 12 | 10 | 9 | 8 | 12 | 8 | 9 | 6 | 5 | 5 | 8 | 9 | 8 | 10 | 11 | 11 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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