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:
Comporta surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 11 am Monday 15 Dec 2025 WETForecast update in hr min s Forecast update imminent
Comporta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Comporta sea temperature is
16.2° C
(Which is slightly cooler than normal)How big are the waves at Comporta today?
The current surf forecast for Comporta at 1PM is: 1.9m 14s primary swell from a West-northwest direction (forecast issued at 11:00am December 15). The wind direction is predicted to be cross-onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 6ft (1.9m) | 14s |
| Afternoon (15 Dec) | 6ft (1.9m) | 13s |
| Evening (15 Dec) | 8ft (2.4m) | 13s |
Table - waves today at Comporta. (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 | 10 | 10 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1337 | 1373 | 1267 | 1172 | 1945 | 878 | 2373 | 3692 | 5912 | 7482 | 7874 | 7273 | 6107 | 8080 | 3891 | 3500 | 2759 | 2211 | 1708 | 1487 | 1226 | 1028 | 813 | 809 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | cross- off |
High Tide / height (m) | 11:20AM 2.20 | 11:49PM 2.26 | 12:08PM 2.25 | 12:31AM 2.37 | 12:51PM 2.31 | 1:09AM 2.47 | ||||||||||||||||||
Low Tide / height (m) | 5:33PM 0.72 | 5:59AM 0.74 | 6:15PM 0.67 | 6:42AM 0.63 | 6:53PM 0.60 | |||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | 7:43 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - |
 |  | |  |  |  | | |  | |  |  |  | | | | | | | | | | | | |
Rain (mm) | - | 1 | 1 | 2 | 2 | 11 | 4 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 15 | 14 | 15 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 10 | 12 | 14 | 14 | 13 | 13 | 12 | 11 |
| Feels °C (?) | 13 | 11 | 12 | 9 | 9 | 6 | 3 | 3 | 2 | 2 | 2 | 3 | 4 | 4 | 5 | 6 | 5 | 8 | 11 | 11 | 11 | 11 | 10 | 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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