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 pm 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 6AM is: 3.0m 10s primary swell from a West-northwest direction and 1.3m 13s secondary swell from a West-northwest direction, 1.2m 16s secondary swell from a Northwest direction (forecast issued at 11:00pm December 15). The wind direction is predicted to be cross-onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 13ft (4.0m) | 12s |
| Afternoon (16 Dec) | 15ft (4.5m) | 13s |
| Evening (16 Dec) | 13ft (4.0m) | 14s |
Table - waves today at Comporta. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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 | 10 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 23 | 21 | 20 | 19 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1995 | 983 | 2875 | 1644 | 4423 | 6205 | 6644 | 7004 | 6198 | 8274 | 3827 | 3021 | 2405 | 2130 | 1708 | 1487 | 1170 | 1028 | 905 | 934 | 4035 | 7998 | 8823 | 8934 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross | cross | cross- off | off | off | glass | cross- off | cross |
High Tide / height (m) | 11:49PM 2.26 | 12:08PM 2.25 | 12:31AM 2.37 | 12:51PM 2.31 | 1:09AM 2.47 | 1:30PM 2.37 | ||||||||||||||||||
Low Tide / height (m) | 5:59AM 0.74 | 6:15PM 0.67 | 6:42AM 0.63 | 6:53PM 0.60 | 7:20AM 0.54 | |||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:46 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 |  | |  |  | |  |  |  | |  | |  | | | | | | | | |  | | | |
Rain (mm) | 1 | 3 | 2 | 6 | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 12 | 12 | 11 | 10 | 12 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 14 |
| Feels °C (?) | 12 | 10 | 8 | 6 | 4 | 3 | 3 | 2 | 3 | 3 | 4 | 5 | 7 | 6 | 6 | 8 | 11 | 12 | 11 | 11 | 10 | 11 | 11 | 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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