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Surf Forecasts:
Guethary - Les Alcyons/Avalanche surfForecast / La Cote Basque / France
48hr Weather and Surf, issued 12 pm Thursday 11 Dec 2025 CETForecast update in hr min s Forecast update imminent
Guethary - Les Alcyons/Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guethary - Les Alcyons/Avalanche sea temperature is
15.1° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Guethary - Les Alcyons/Avalanche today?
The current surf forecast for Guethary - Les Alcyons/Avalanche at 5PM is: 2.3m 14s primary swell from a West-northwest direction (forecast issued at 12:00pm December 11). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 7.5ft (2.3m) | 15s |
| Afternoon (11 Dec) | 7.5ft (2.3m) | 14s |
| Evening (11 Dec) | 7ft (2.1m) | 13s |
Table - waves today at Guethary - Les Alcyons/Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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) (?) | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 13 | 17 | 16 | 16 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2268 | 2285 | 2031 | 1748 | 1329 | 1117 | 1077 | 1723 | 1693 | 2113 | 3881 | 3786 | 9096 | 9671 | 9355 | 8412 | 7848 | 7183 | 6680 | 5174 | 4312 | 3871 | 3170 | 2457 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- off | cross- off | off | cross- off | glass | cross- off | glass | glass | glass | cross- off | off | cross- off | off | off |
High Tide / height (m) | 9:18AM 3.25 | 10:00PM 2.86 | 10:22AM 3.06 | 11:06PM 2.79 | 11:29AM 2.95 | 12:11AM 2.81 | ||||||||||||||||||
Low Tide / height (m) | 3:34PM 0.82 | 3:50AM 1.04 | 4:37PM 0.96 | 4:57AM 1.13 | 5:40PM 1.02 | 6:04AM 1.13 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - |
 |  | |  |  | | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 15 | 17 | 14 | 14 | 13 | 13 | 11 | 12 | 15 | 15 | 14 | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 10 | 9 | 9 |
| Feels °C (?) | 9 | 13 | 15 | 12 | 11 | 9 | 9 | 8 | 10 | 13 | 13 | 12 | 11 | 10 | 10 | 9 | 9 | 11 | 11 | 10 | 10 | 8 | 7 | 7 |
- 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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