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:
La Tranche sur Mer surfForecast / Vendee / France
48hr Weather and Surf, issued 12 pm Friday 12 Dec 2025 CETForecast update in hr min s Forecast update imminent
La Tranche sur Mer surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's La Tranche sur Mer sea temperature is
11.6° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at La Tranche sur Mer today?
The current surf forecast for La Tranche sur Mer at 8PM is: 2.2m 15s primary swell from a West-southwest direction and 1.3m 20s secondary swell from a West-southwest direction, 0.6m 5s secondary swell from a South direction (forecast issued at 12:00pm December 12). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 7ft (2.2m) | 14s |
| Afternoon (12 Dec) | 7.5ft (2.3m) | 15s |
| Evening (12 Dec) | 8ft (2.5m) | 18s |
Table - waves today at La Tranche sur Mer. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 16 | 15 | 15 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2107 | 2511 | 2620 | 2258 | 4280 | 4703 | 4137 | 3668 | 3314 | 2577 | 2161 | 1866 | 1644 | 1275 | 1077 | 938 | 684 | 506 | 498 | 499 | 561 | 684 | 788 | 788 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | on | cross- on | glass | cross- on | on | cross- on | cross- on | glass | cross- off | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 11:20AM 3.53 | 12:03AM 3.31 | 12:23PM 3.49 | 12:59AM 3.38 | 1:18PM 3.50 | 1:47AM 3.49 | ||||||||||||||||||
Low Tide / height (m) | 4:34PM 1.03 | 4:57AM 1.20 | 5:34PM 1.13 | 6:00AM 1.25 | 6:33PM 1.14 | 7:00AM 1.19 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 8:40 | - | - | - | - | - | - | - | 8:41 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - | - | - | 5:19 | - | - | - | - | - |
 | |  |  |  | | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 10 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 6 | 8 | 10 | 10 | 11 | 13 | 11 | 10 | 9 | 9 | 11 | 11 | 9 | 9 | 7 | 7 | 6 | 7 | 8 | 7 | 4 | 3 | 3 | 2 |
- 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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