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 pm Wednesday 10 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
16.9° C
(Which is slightly cooler than normal)How big are the waves at Zavial today?
The current surf forecast for Zavial at 5AM is: 2.5m 13s primary swell from a West-northwest direction and 0.2m 6s secondary swell from a East-southeast direction, 0.5m 4s secondary swell from a East direction (forecast issued at 11:00pm December 10). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 8ft (2.4m) | 13s |
| Afternoon (11 Dec) | 7ft (2.1m) | 13s |
| Evening (11 Dec) | 6ft (1.8m) | 13s |
Table - waves today at Zavial. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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 | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 18 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1991 | 2090 | 2199 | 2318 | 2026 | 1872 | 1488 | 1317 | 1028 | 938 | 1106 | 1339 | 1344 | 1446 | 4418 | 7164 | 6926 | 9725 | 9201 | 8576 | 7890 | 6790 | 5274 | 4065 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- on | on | on | on | glass | cross- off | on | cross | cross- on | cross- on | on | cross- off | cross- off | cross- off | cross | cross- on | cross | cross | cross | cross- off |
High Tide / height (m) | 6:44PM 2.23 | 7:03AM 2.48 | 7:47PM 2.13 | 8:07AM 2.34 | 8:54PM 2.09 | 9:13AM 2.25 | ||||||||||||||||||
Low Tide / height (m) | 12:35AM 0.75 | 1:32PM 0.67 | 1:41AM 0.88 | 2:37PM 0.76 | 2:53AM 0.94 | 3:40PM 0.80 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:39 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:19 | - |
 | | |  |  |  | | |  | |  | |  |  | | |  | | | |  | |  | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | 1 | 1 | - | 1 | 5 | 8 | 6 | 3 | 2 | - | 2 | 1 | - | - | - | - |
| Temp. °C | 15 | 14 | 13 | 13 | 14 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 12 | 13 | 14 | 13 | 13 | 12 | 13 | 14 | 14 | 16 | 18 | 17 |
| Feels °C (?) | 11 | 10 | 10 | 11 | 13 | 13 | 13 | 13 | 15 | 14 | 11 | 9 | 9 | 9 | 12 | 10 | 8 | 7 | 9 | 9 | 9 | 12 | 14 | 13 |
- 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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