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 Friday 12 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: 3.0m 18s primary swell from a West direction and 1.2m 6s secondary swell from a Southeast direction (forecast issued at 11:00pm December 12). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 10ft (3.0m) | 18s |
| Afternoon (13 Dec) | 8ft (2.5m) | 17s |
| Evening (13 Dec) | 7ft (2.1m) | 16s |
Table - waves today at Alfagar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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) (?) | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 16 | 15 | 14 | 14 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6906 | 7268 | 6734 | 6057 | 5500 | 4695 | 3921 | 3009 | 2231 | 1811 | 1332 | 951 | 802 | 674 | 490 | 483 | 414 | 322 | 906 | 812 | 881 | 856 | 828 | 792 |
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- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | glass | off | glass | glass | glass | glass | cross- on | cross- on | cross- on |
High Tide / height (m) | 8:52PM 2.10 | 9:11AM 2.25 | 9:55PM 2.13 | 10:13AM 2.22 | 10:50PM 2.21 | 11:09AM 2.24 | ||||||||||||||||||
Low Tide / height (m) | 2:50AM 0.94 | 3:38PM 0.80 | 4:00AM 0.92 | 4:33PM 0.79 | 4:59AM 0.85 | 5:20PM 0.74 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 | | | |  |  | |  |  | | | |  | | |  | | | | | | |  | | |
Rain (mm) | 2 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 |
| Temp. °C | 13 | 14 | 14 | 15 | 15 | 17 | 18 | 17 | 16 | 15 | 14 | 13 | 13 | 16 | 17 | 16 | 15 | 14 | 14 | 13 | 14 | 16 | 16 | 15 |
| Feels °C (?) | 10 | 10 | 9 | 12 | 10 | 12 | 14 | 14 | 13 | 12 | 11 | 10 | 10 | 12 | 15 | 16 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 |
- 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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