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Surf Forecasts:

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

information circle48hr Weather and Surf, issued 12 am Thursday 19 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 8AM is: 2.5m 15s primary swell from a Northwest direction (forecast issued at 12:00am March 19). The wind direction is predicted to be offshore and the swell rating is 4.

Time (CET) & DateWave HeightWave Period
Morning (19 Mar)8ft (2.5m)15s
Afternoon (19 Mar)7ft (2.1m)14s
Evening (19 Mar)6ft (1.9m)14s

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
Thursday
19
Friday
20
Saturday
21
10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM
Rating
(10 max)
5
5
5
5
4
4
4
4
4
3
3
3
3
3
2
2
2
2
2
1
1
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
WNW
3
WNW
3
WNW
2.5
WNW
2.4
WNW
2.2
NW
2.1
NW
1.9
NW
1.8
NW
1.6
NW
1.5
NW
1.4
NW
1.3
NW
1.3
NW
1.1
NW
1.1
NW
1.1
NW
0.9
NW
0.9
NW
0.8
NW
0.8
NW
0.8
NW
0.6
NW
0.6
NW
Period(s) (?)181616161514141414131313131313121212121212111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2390448339213203244419291736140811619337696235435354113413302402321641611479694
Wind
(km/h)
15
E
10
ESE
10
SE
10
ESE
10
ESE
10
SE
0
SE
5
ESE
10
SE
10
SSE
10
SSE
10
SE
10
SE
5
SE
10
ENE
10
E
10
SE
10
SSE
10
SE
5
SE
5
S
5
NNW
10
NNW
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffoffoffoffglassglassoffoffoffoffoffglasscross-
off		cross-
off		offoffoffoffglasscross-
on		cross-
on		on
High Tide
/ height (m)
4:31AM
4.00
4:52PM
3.86
5:06AM
4.10
5:27PM
3.93
5:43AM
4.08
6:03PM
3.91
Low Tide
/ height (m)
10:16PM
0.13
10:39AM
-0.07
10:51PM
-0.02
11:14AM
-0.14
11:28PM
-0.08
11:51AM
-0.09
Thursday
19
Friday
20
Saturday
21
Sunrise----7:11-------7:09-------7:09---
Sunset-------7:15-------7:17-------7:19
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C141211101317181714121110121718161412111013141413
Feels °C (?)121097101417161198791515141298711111111
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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View detailed surf forecast for Guethary - Les Alcyons/Avalanche at:
surf-forecast.com

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