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:
Zambujeira do Mar surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 11 am Saturday 13 Dec 2025 WETForecast update in hr min s Forecast update imminent
Zambujeira do Mar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Zambujeira do Mar sea temperature is
16.4° C
(Which is slightly cooler than normal)How big are the waves at Zambujeira do Mar today?
The current surf forecast for Zambujeira do Mar at 3PM is: 4.0m 16s primary swell from a Northwest direction (forecast issued at 11:00am December 13). An open ocean swell of 0.8m 8s 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) | 16ft (5.0m) | 17s |
| Afternoon (13 Dec) | 13ft (4.0m) | 16s |
| Evening (13 Dec) | 11ft (3.5m) | 16s |
Table - waves today at Zambujeira do Mar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 17 | 17 | 16 | 16 | 16 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 13470 | 11654 | 8965 | 7176 | 6080 | 4993 | 3594 | 3051 | 2708 | 1919 | 1730 | 1521 | 1544 | 2050 | 2258 | 2310 | 2180 | 1979 | 1876 | 1575 | 2938 | 1188 | 3810 | 4704 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | off | off | cross- off | cross- off | cross- off | glass | off | glass | cross | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 9:18AM 2.23 | 10:03PM 2.10 | 10:21AM 2.20 | 10:58PM 2.18 | 11:16AM 2.22 | 11:45PM 2.28 | ||||||||||||||||||
Low Tide / height (m) | 3:46PM 0.78 | 4:07AM 0.90 | 4:41PM 0.77 | 5:06AM 0.84 | 5:29PM 0.73 | 5:55AM 0.74 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | 7:39 | - | - | - | - | - | - | - | 7:41 | - | - | - | - | - | - | - | 7:41 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - |
 |  |  |  | | | | | | | |  |  | | | | | | |  |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 12 | 3 | 1 | 1 |
| Temp. °C | 13 | 16 | 18 | 16 | 13 | 13 | 12 | 11 | 11 | 16 | 18 | 15 | 14 | 13 | 12 | 12 | 14 | 15 | 15 | 13 | 13 | 12 | 12 | 12 |
| Feels °C (?) | 9 | 12 | 14 | 14 | 10 | 10 | 9 | 8 | 8 | 13 | 16 | 13 | 13 | 11 | 11 | 10 | 12 | 12 | 12 | 9 | 8 | 6 | 7 | 9 |
- 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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