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:
Castelejo surfForecast / Algarve / Portugal
48hr Weather and Surf, issued 5 am Saturday 13 Dec 2025 WETForecast update in hr min s Forecast update imminent
Castelejo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castelejo sea temperature is
16.6° C
(Which is slightly cooler than normal)How big are the waves at Castelejo today?
The current surf forecast for Castelejo at 7AM is: 5.0m 18s primary swell from a Northwest direction (forecast issued at 05:00am December 13). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 15ft (4.5m) | 17s |
| Afternoon (13 Dec) | 13ft (4.0m) | 17s |
| Evening (13 Dec) | 11ft (3.5m) | 16s |
Table - waves today at Castelejo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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) (?) | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 15829 | 14146 | 13042 | 11567 | 9104 | 6950 | 5722 | 4885 | 3326 | 2967 | 2471 | 1990 | 1659 | 1541 | 1659 | 1894 | 2061 | 2122 | 1979 | 1876 | 1643 | 1585 | 1255 | 1236 |
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 | cross | cross- off | cross- off | cross | cross | cross- off | glass | on | glass | cross- on | glass | cross | cross | cross | cross- on | cross- off | on | on |
High Tide / height (m) | 9:15AM 2.24 | 9:59PM 2.12 | 10:17AM 2.21 | 10:55PM 2.20 | 11:12AM 2.23 | 11:42PM 2.30 | ||||||||||||||||||
Low Tide / height (m) | 2:54AM 0.93 | 3:42PM 0.79 | 4:04AM 0.91 | 4:37PM 0.78 | 5:03AM 0.85 | 5:25PM 0.73 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 7:39 | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:41 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - |
 | |  |  | |  | | | | | | | |  | |  | | |  | | | |  |  | |
Rain (mm) | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 12 | 6 |
| Temp. °C | 14 | 15 | 15 | 16 | 18 | 18 | 17 | 16 | 15 | 14 | 15 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 14 | 14 | 13 |
| Feels °C (?) | 7 | 9 | 9 | 10 | 14 | 14 | 12 | 12 | 12 | 11 | 12 | 14 | 15 | 15 | 15 | 13 | 15 | 13 | 12 | 11 | 11 | 9 | 8 | 7 |
- 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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