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:
Foz do Arelho surfForecast / Peniche / Portugal
48hr Weather and Surf, issued 11 pm Thursday 11 Dec 2025 WETForecast update in hr min s Forecast update imminent
Foz do Arelho surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Foz do Arelho sea temperature is
15.5° C
(Which is slightly cooler than normal)How big are the waves at Foz do Arelho today?
The current surf forecast for Foz do Arelho at 5AM is: 3.0m 13s primary swell from a West-northwest direction and 1.6m 18s secondary swell from a West-northwest direction (forecast issued at 11:00pm December 11). The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 10ft (3.0m) | 14s |
| Afternoon (12 Dec) | 15ft (4.5m) | 16s |
| Evening (12 Dec) | 16ft (5.0m) | 18s |
Table - waves today at Foz do Arelho. (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 | 13 | 14 | 16 | 16 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1682 | 2553 | 2760 | 2681 | 2940 | 7912 | 11655 | 17499 | 16378 | 15488 | 14472 | 12740 | 11152 | 8439 | 6863 | 5922 | 4681 | 3609 | 3280 | 2717 | 2135 | 1972 | 1723 | 1874 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | off | off | cross- off | cross | cross | cross- off | cross | cross- off | cross | cross- off | cross | cross- off | cross | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:10PM 2.14 | 8:30AM 2.35 | 9:16PM 2.10 | 9:36AM 2.26 | 10:19PM 2.13 | 10:38AM 2.22 | ||||||||||||||||||
Low Tide / height (m) | 2:05AM 0.85 | 3:00PM 0.75 | 3:16AM 0.91 | 4:03PM 0.78 | 4:24AM 0.90 | 4:58PM 0.78 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:47 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:13 | - |
 | |  | |  |  |  | | | |  | |  | | |  | | | | | | | | | |
Rain (mm) | - | - | 3 | 5 | 6 | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 15 | 14 | 15 | 16 | 15 | 15 | 15 | 13 | 12 | 12 | 15 | 16 | 15 |
| Feels °C (?) | 10 | 8 | 7 | 9 | 9 | 10 | 10 | 10 | 6 | 9 | 8 | 12 | 10 | 11 | 12 | 12 | 12 | 12 | 9 | 8 | 8 | 11 | 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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