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:
Alfagar surfForecast / Algarve / Portugal
48hr Weather and Surf, issued 11 pm Thursday 11 Dec 2025 WETForecast update in hr min s Forecast update imminent
Alfagar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Alfagar sea temperature is
16.4° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Alfagar today?
The current surf forecast for Alfagar at 5AM is: 1.6m 14s primary swell from a West direction and 0.6m 19s secondary swell from a West-northwest direction (forecast issued at 11:00pm December 11). The wind direction is predicted to be cross-onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 5.5ft (1.7m) | 13s |
| Afternoon (12 Dec) | 6.5ft (2.0m) | 16s |
| Evening (12 Dec) | 10ft (3.0m) | 19s |
Table - waves today at Alfagar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 14 | 13 | 13 | 16 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 704 | 623 | 796 | 942 | 972 | 1070 | 2105 | 6274 | 7347 | 7268 | 7077 | 6444 | 5500 | 5029 | 3921 | 3009 | 2231 | 1811 | 1332 | 951 | 822 | 674 | 490 | 483 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | glass | glass | cross- on | cross- on | on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off |
High Tide / height (m) | 7:45PM 2.13 | 8:05AM 2.34 | 8:52PM 2.10 | 9:11AM 2.25 | 9:55PM 2.13 | 10:13AM 2.22 | ||||||||||||||||||
Low Tide / height (m) | 1:38AM 0.88 | 2:35PM 0.77 | 2:50AM 0.94 | 3:38PM 0.80 | 4:00AM 0.92 | 4:33PM 0.79 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:35 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 | |  | |  | | | | | | | |  |  | |  | |  | | |  | | | | |
Rain (mm) | - | - | 1 | - | 2 | 2 | 1 | 4 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 13 | 12 | 13 | 13 | 14 | 14 | 17 | 18 | 17 | 16 | 15 | 13 | 12 | 13 | 16 | 17 | 16 |
| Feels °C (?) | 13 | 13 | 14 | 13 | 11 | 12 | 11 | 9 | 8 | 9 | 9 | 9 | 9 | 12 | 14 | 13 | 12 | 12 | 10 | 9 | 10 | 13 | 14 | 14 |
- 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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