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:
Zavial surfForecast / Algarve / Portugal
48hr Weather and Surf, issued 11 am Monday 15 Dec 2025 WETForecast update in hr min s Forecast update imminent
Zavial surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Zavial sea temperature is
16.8° C
(Which is slightly cooler than normal)How big are the waves at Zavial today?
The current surf forecast for Zavial at 2PM is: 1.9m 14s primary swell from a West-northwest direction and 0.4m 5s secondary swell from a Southeast direction (forecast issued at 11:00am December 15). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 6ft (1.9m) | 14s |
| Afternoon (15 Dec) | 6ft (1.9m) | 13s |
| Evening (15 Dec) | 6ft (1.8m) | 13s |
Table - waves today at Zavial. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 9 | 10 | 11 | 12 | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1325 | 1286 | 1229 | 1073 | 1057 | 799 | 1217 | 2844 | 3512 | 2972 | 3606 | 6648 | 6030 | 5022 | 4457 | 3859 | 3209 | 2707 | 2182 | 1783 | 1619 | 1266 | 1036 | 986 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | glass |
High Tide / height (m) | 11:11AM 2.24 | 11:40PM 2.31 | 11:58AM 2.29 | 12:21AM 2.42 | 12:41PM 2.36 | 12:59AM 2.52 | ||||||||||||||||||
Low Tide / height (m) | 5:23PM 0.74 | 5:49AM 0.76 | 6:04PM 0.68 | 6:31AM 0.65 | 6:42PM 0.61 | |||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | 7:41 | - | - | - | - | - | - | - | 7:41 | - | - | - | - | - | - | - | 7:41 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - |
 | |  |  |  |  | |  |  | |  |  | |  | | |  | | | | | | | | |
Rain (mm) | - | - | 1 | 1 | 10 | 3 | 4 | 3 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 16 | 16 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 13 | 15 | 14 | 14 | 14 | 14 | 13 |
| Feels °C (?) | 14 | 13 | 11 | 11 | 1 | 4 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 6 | 5 | 7 | 10 | 10 | 11 | 12 | 13 | 12 |
- 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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