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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 7 pm Friday 17 Apr 2026 CESTForecast 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
14.8° C
(Which is 1.8°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 1AM is: 1.6m 12s primary swell from a West-northwest direction (forecast issued at 07:00pm April 17). The wind direction is predicted to be cross-shore.
| Time (CEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 5.5ft (1.7m) | 12s |
| Afternoon (18 Apr) | 5ft (1.6m) | 12s |
| Evening (18 Apr) | 4.5ft (1.3m) | 11s |
Table - waves today at Guethary - Les Alcyons/Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 894 | 775 | 727 | 715 | 830 | 816 | 761 | 658 | 527 | 427 | 419 | 375 | 354 | 304 | 225 | 234 | 189 | 178 | 171 | 139 | 106 | 101 | 67 | 65 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross | cross | cross | cross- on | on | on | on | cross- on | cross- on | cross | cross- off | glass | cross- on | cross- on | glass | cross | glass | glass | glass | glass | cross- on |
High Tide / height (m) | 5:22PM 3.93 | 5:41AM 4.07 | 6:02PM 4.01 | 6:23AM 4.03 | 6:43PM 3.98 | 7:08AM 3.87 | ||||||||||||||||||
Low Tide / height (m) | 11:25PM -0.07 | 11:47AM -0.11 | 12:07AM -0.13 | 12:28PM -0.04 | 12:50AM -0.07 | 1:11PM 0.15 | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:20 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:16 | - | - |
| Sunset | - | 8:51 | - | - | - | - | - | - | - | 8:52 | - | - | - | - | - | - | - | 8:52 | - | - | - | - | - | - |
 | |  |  | | |  |  | | | | | | | | | | |  | | |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | - |
| Temp. °C | 16 | 15 | 13 | 13 | 12 | 12 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 15 | 18 | 19 | 19 | 16 | 15 | 15 | 14 | 17 | 20 |
| Feels °C (?) | 14 | 14 | 11 | 11 | 10 | 10 | 12 | 14 | 13 | 13 | 11 | 11 | 12 | 12 | 15 | 17 | 18 | 20 | 16 | 16 | 16 | 15 | 18 | 20 |
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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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