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 am Tuesday 16 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
15.8° C
(Which is slightly cooler than normal)How big are the waves at Carcavelos today?
The current surf forecast for Carcavelos at 1PM is: 5.5m 11s primary swell from a Northwest direction (forecast issued at 11:00am December 16). The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 18ft (5.5m) | 10s |
| Afternoon (16 Dec) | 20ft (6.0m) | 13s |
| Evening (16 Dec) | 13ft (4.0m) | 14s |
Table - waves today at Carcavelos. (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 | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 24 | 23 | 21 | 20 | 19 | 18 | 18 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5921 | 7763 | 11175 | 12260 | 6806 | 5965 | 4836 | 4642 | 3468 | 3722 | 3078 | 2507 | 2121 | 1761 | 1732 | 3319 | 10986 | 19802 | 18575 | 18186 | 16509 | 15433 | 14639 | 12293 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | glass | cross | cross | cross- on | cross- on | cross- on | cross- on | on | cross- off | cross- off |
High Tide / height (m) | 12:10PM 2.25 | 12:33AM 2.37 | 12:52PM 2.31 | 1:11AM 2.47 | 1:31PM 2.38 | 1:48AM 2.56 | ||||||||||||||||||
Low Tide / height (m) | 6:01AM 0.73 | 6:16PM 0.66 | 6:44AM 0.63 | 6:55PM 0.60 | 7:22AM 0.53 | 7:32PM 0.54 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - |
 |  |  |  |  | | | |  | | | | | | | | | | |  |  |  | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 6 | 6 | 1 |
| Temp. °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 14 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 15 | 15 | 15 | 15 | 14 | 14 | 14 |
| Feels °C (?) | 3 | 3 | 2 | 3 | 4 | 6 | 7 | 8 | 9 | 11 | 12 | 12 | 11 | 12 | 12 | 10 | 10 | 12 | 11 | 11 | 11 | 12 | 11 | 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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