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Surf Forecasts:

Guethary - Les Alcyons/Avalanche surfForecast / La Cote Basque / France

information circle48hr Weather and Surf, issued 6 pm Tuesday 17 Mar 2026 CET
Forecast 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
13.0° C
 (Which is 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: 2.2m 14s primary swell from a Northwest direction (forecast issued at 06:00pm March 17). The wind direction is predicted to be offshore and the swell rating is 4.

Time (CET) & DateWave HeightWave Period
Morning (18 Mar)7ft (2.1m)14s
Afternoon (18 Mar)7ft (2.2m)14s
Evening (18 Mar)6.5ft (2.0m)18s

Table - waves today at Guethary - Les Alcyons/Avalanche. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
5
5
5
5
4
4
4
4
4
3
3
3
3
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
NW
2.4
NW
2.3
NW
2.2
NW
2.2
NW
2.2
NW
2.1
NW
2.2
NW
2.2
NW
2.1
NW
2
WNW
3
WNW
3
WNW
2.5
WNW
2.4
WNW
2.2
NW
2
WNW
1.9
NW
1.7
NW
1.6
NW
1.5
NW
1.4
NW
1.3
NW
1.3
NW
Period(s) (?)151514141414141414131816161615141414141313131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2894244922631972191818911710176216971524239042243921320324441929164414081058933769680543535
Wind
(km/h)
10
E
10
ESE
10
SE
10
SE
10
SSE
10
SSE
10
ESE
10
E
15
ENE
15
E
15
ESE
15
ESE
10
SE
10
ESE
10
SSE
10
SSE
5
SE
10
ESE
15
ESE
10
SE
10
SE
10
SE
5
SE
5
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offoffoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffoffcross-
off		offoffoffoffglass
High Tide
/ height (m)
3:44PM
3.48
3:56AM
3.80
4:18PM
3.70
4:31AM
4.00
4:52PM
3.86
5:06AM
4.10
Low Tide
/ height (m)
9:41PM
0.36
10:05AM
0.10
10:16PM
0.13
10:39AM
-0.07
10:51PM
-0.02
11:14AM
-0.14
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise------7:13-------7:11-------7:09-
Sunset-7:14-------7:15-------7:15------
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C2219151313121520211813111091316171613121091216
Feels °C (?)20181310109131819161088610131514109761014
  • 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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View detailed surf forecast for Guethary - Les Alcyons/Avalanche at:
surf-forecast.com

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