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:
Tregana surfForecast / Brittany – Finistere / France
48hr Weather and Surf, issued 6 am Saturday 13 Dec 2025 CETForecast update in hr min s Forecast update imminent
Tregana surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tregana sea temperature is
12.5° C
(Which is normal for this time of year)How big are the waves at Tregana today?
The current surf forecast for Tregana at 8AM is: 4.5m 17s primary swell from a West direction (forecast issued at 06:00am December 13). The wind direction is predicted to be glassy and the swell rating is 11.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 15ft (4.5m) | 17s |
| Afternoon (13 Dec) | 13ft (4.0m) | 16s |
| Evening (13 Dec) | 10ft (3.0m) | 14s |
Table - waves today at Tregana. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14990 | 13574 | 10273 | 8576 | 6853 | 4756 | 3806 | 3025 | 2327 | 2187 | 2154 | 2651 | 3129 | 3415 | 3371 | 3297 | 3183 | 3183 | 3502 | 3297 | 2830 | 6140 | 6052 | 5119 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off |
High Tide / height (m) | 11:54AM 4.40 | 12:37AM 4.29 | 1:01PM 4.37 | 1:37AM 4.40 | 1:59PM 4.44 | |||||||||||||||||||
Low Tide / height (m) | 5:38AM 1.79 | 6:16PM 1.68 | 6:45AM 1.84 | 7:18PM 1.69 | 7:48AM 1.76 | 8:14PM 1.61 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 9:00 | - | - | - | - | - | - | - | 9:00 | - | - | - | - | - | - | - | 9:02 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - |
 | |  | | | |  | | |  |  | | | | | | | | |  |  | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | 1 | 1 |
| Temp. °C | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 11 | 11 |
| Feels °C (?) | 10 | 8 | 8 | 9 | 8 | 8 | 7 | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 5 | 6 | 5 | 6 | 7 | 5 | 5 | 4 | 6 | 6 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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