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Guethary - Les Alcyons/Avalanche Surf Forecast
/ La Cote Basque (36 surf breaks) /
Surf Forecasts:
Guethary - Les Alcyons/Avalanche surfForecast / La Cote Basque / France
48hr Weather and Surf, issued 12 am Wednesday 25 Mar 2026 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
13.6° C
(Which is 1.0°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 8AM is: 1.3m 13s primary swell from a Northwest direction and 0.6m 18s secondary swell from a Northwest direction (forecast issued at 12:00am March 25). The wind direction is predicted to be cross-onshore.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | 4.5ft (1.3m) | 13s |
| Afternoon (25 Mar) | 6ft (1.9m) | 15s |
| Evening (25 Mar) | 10ft (3.0m) | 14s |
Table - waves today at Guethary - Les Alcyons/Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| 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 | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 13 | 13 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 357 | 350 | 437 | 581 | 487 | 1685 | 1715 | 3325 | 4007 | 4103 | 3876 | 3560 | 3208 | 2878 | 2407 | 2142 | 1860 | 1632 | 1422 | 1271 | 1125 | 1013 | 855 | 851 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- off | cross | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on |
High Tide / height (m) | 8:17PM 3.30 | 8:57AM 3.03 | 9:27PM 3.04 | 10:25AM 2.77 | 11:04PM 2.91 | 12:09PM 2.75 | ||||||||||||||||||
Low Tide / height (m) | 2:34AM 0.70 | 3:01PM 1.00 | 3:50AM 0.97 | 4:24PM 1.22 | 5:28AM 1.06 | 6:02PM 1.21 | ||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | - | - | 7:23 | - | - | - | - | - | - | - | 7:24 | - | - | - | - | - | - | - | 7:25 |
 |  | | |  |  |  | |  | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 11 | 11 | 12 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 9 | 10 | 9 | 7 | 6 | 5 | 7 | 11 | 10 | 10 |
| Feels °C (?) | 12 | 10 | 8 | 8 | 7 | 6 | 5 | 5 | 5 | 4 | 4 | 5 | 4 | 5 | 4 | 4 | 4 | 4 | 3 | 1 | 3 | 7 | 5 | 5 |
- 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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