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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 1 pm Sunday 17 May 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
16.6° C
(Which is 1.1°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 8PM is: 1.1m 8s primary swell from a Northwest direction and 0.5m 16s secondary swell from a Northwest direction (forecast issued at 01:00pm May 17). The wind direction is predicted to be onshore.
| Time (CEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 3.5ft (1.1m) | 8s |
| Afternoon (17 May) | 3.5ft (1.0m) | 8s |
| Evening (17 May) | 2ft (0.6m) | 15s |
Table - waves today at Guethary - Les Alcyons/Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Tue afternoon, min 11°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 8 | NW 8 | NW 8 | NW 8 | NW 15 | WNW 14 | WNW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | |
123 | 122 | 131 | 125 | 223 | 362 | 607 | 769 | 878 | 1043 | 1010 | 895 | 808 | 722 | 594 | 553 | 471 | 505 | 540 | 490 | 392 | 384 | 384 | 392 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | cross-on | cross | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | glassy | cross-on | cross-on | cross-on | cross-off | off | off | cross-off | |
High Tide | 5:42PM3.98m | 6:10AM3.90m | 6:29PM3.98m | 7:00AM3.77m | 7:19PM3.89m | 7:53AM3.56m | ||||||||||||||||||
Low Tide | 11:25AM0.03m | 11:50PM-0.09m | 12:11PM0.08m | 00:39AM-0.05m | 12:59PM0.22m | 1:31AM0.09m | ||||||||||||||||||
 |  | |  |  |  |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — |
 | — | — | — | 9:24 | — | — | — | — | — | — | — | 9:25 | — | — | — | — | — | — | — | 9:27 | — | — | — | 9:28 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 15 | 14 | 13 | 13 | 12 | 11 | 14 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 19 | 21 | 20 | 19 | 17 | 16 | 15 | 15 |
13 | 13 | 12 | 12 | 11 | 12 | 11 | 10 | 14 | 14 | 14 | 14 | 15 | 13 | 13 | 14 | 19 | 19 | 18 | 18 | 16 | 15 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | WNW 13 | NW 8 | NW 8 | NW 7 | NW 7 | WNW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 |
 kJ | 123 | 35 | 131 | 125 | 121 | 91 | 607 | 769 | 878 | 1043 | 1010 | 895 | 808 | 722 | 594 | 553 | 471 | 505 | 540 | 490 | 392 | 384 | 384 | 392 |
Swell 2 Height (m) Direction Period (s) | WNW 14 | NW 17 | NW 13 | NW 16 | NW 15 | WNW 14 | NW 7 | NW 8 | NW 7 | — | — | — | — | — | — | — | — | — | W 16 | W 15 | W 15 | NW 15 | NW 18 | WNW 17 |
| kJ | 20 | 12 | 44 | 121 | 223 | 362 | 91 | 94 | 77 | — | — | — | — | — | — | — | — | — | 5 | 4 | 4 | 8 | 13 | 57 |
Swell 3 Height (m) Direction Period (s) | W 18 | — | NW 16 | NW 12 | WNW 12 | WNW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 19 | NW 14 | — |
| kJ | 6 | — | 41 | 38 | 59 | 48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 8 | — |
Wind waves Height (m) Direction Period (s) | — | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 122 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 6 | 0 | 0 | 0 | 87 | 6 | 11 | 0 | 0 | 0 | 0 | 0 | 11 | 11 | 6 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in La Cote Basque | ||||||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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