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 5 am Friday 12 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
15.7° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Carcavelos today?
The current surf forecast for Carcavelos at 7AM is: 3.0m 13s primary swell from a West direction and 1.9m 17s secondary swell from a West-northwest direction (forecast issued at 05:00am December 12). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 10ft (3.0m) | 14s |
| Afternoon (12 Dec) | 16ft (5.0m) | 19s |
| Evening (12 Dec) | 18ft (5.5m) | 19s |
Table - waves today at Carcavelos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 14 | 16 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2574 | 2744 | 3596 | 8427 | 16231 | 20744 | 20913 | 18995 | 16898 | 14652 | 13057 | 10629 | 7584 | 6283 | 5394 | 3859 | 3468 | 2926 | 2243 | 1783 | 1783 | 1783 | 1915 | 2448 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 8:18AM 2.31 | 9:05PM 2.06 | 9:24AM 2.21 | 10:09PM 2.09 | 10:27AM 2.18 | 11:04PM 2.17 | ||||||||||||||||||
Low Tide / height (m) | 1:53AM 0.84 | 2:49PM 0.74 | 3:04AM 0.90 | 3:52PM 0.77 | 4:13AM 0.89 | 4:47PM 0.76 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | - | - | 7:45 | - | - | - | - | - | - | - | 7:46 | - | - | - | - | - | - | - | 7:46 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - |
 |  |  |  | | | | |  | |  |  | |  |  | | | | | | | | | | |
Rain (mm) | 3 | 9 | 6 | 2 | 3 | 3 | 5 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 14 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 13 | 16 | 15 | 13 | 12 |
| Feels °C (?) | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 7 | 9 | 12 | 10 | 10 | 9 | 8 | 7 | 7 | 8 | 12 | 12 | 11 | 10 |
- 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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