Guethary - Les Alcyons/Avalanche Surf Break

Lat Long: 43.43° N 1.62° W

Guethary - Les Alcyons/Avalanche 48 hour detailed Surf Forecast

Issued: 1 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Guethary - Les Alcyons/Avalanche sea temperature is
23.1°C
2.3° 

Guethary - Les Alcyons/Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Guethary - Les Alcyons/Avalanche today (08 Sep):

  • Morning surf: Morning surf (08 Sep, local time) - 3.5ft (1.0m), 11s period with WNW swell.
  • Afternoon surf: Afternoon surf (08 Sep, local time) - 3.5ft (1.0m), 11s period with WNW swell.
  • Evening surf: Evening surf (08 Sep, local time) - 3.5ft (1.0m), 10s period with WNW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 10AM is: 1.0m 11s primary swell from a West-northwest direction (forecast issued at 01:00am September 08). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (08 Sep)3.5ft (1.0m)11s
Afternoon (08 Sep)3.5ft (1.0m)11s
Evening (08 Sep)3.5ft (1.0m)10s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Tue night. Warm (max 22°C on Tue afternoon, min 15°C on Thu morning). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
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
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
2
0
0
0
0
1
0
0
2
1
0
0
0
0
1
2
2
2
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WNW
12
1.1
WNW
11
1
WNW
11
1
WNW
11
1
WNW
11
1
WNW
11
1
WNW
10
1.2
WNW
10
1.6
NW
9
1.8
NW
9
1.8
NW
9
1.8
NW
9
1.6
NW
9
1.5
NW
9
1.4
NW
9
1.6
NW
9
1.4
NW
10
1.4
NW
10
1.4
NW
10
1.3
NW
10
1.3
NW
10
1.1
NW
10
1.1
NW
10
1
NW
9
Wave Graph
Metric surfscale
Energy kJ
317
296
234
226
222
222
194
261
406
540
540
486
412
336
304
410
377
384
392
311
311
241
204
163
Wind (km/h)
5
SW
5
S
0
SSW
10
WNW
10
WNW
15
WNW
10
WNW
10
W
20
NNW
15
NNW
10
N
10
NNE
15
NNW
20
N
15
NNW
10
NNW
5
NNE
5
SE
5
SE
5
E
10
NNW
15
NNW
5
N
0
SSE
Wind State
glassy
glassy
glassy
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
off
glassy
cross-on
cross-on
cross-on
glassy
High Tide
3:05AM3.16m
3:25PM3.51m
3:58AM3.43m
4:14PM3.80m
4:42AM3.65m
4:56PM4.01m
Low Tide
8:59AM0.75m
9:35PM0.40m
9:50AM0.46m
10:22PM0.14m
10:34AM0.21m
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
mod rain
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:37
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:28
8:25
 mm
1
10
5
Temp °C
19
18
18
20
22
22
21
19
18
19
19
19
19
19
18
18
17
16
15
17
19
20
19
17
Feels °C
21
20
20
21
22
22
21
20
16
16
17
17
16
15
15
16
16
15
14
17
17
18
19
18
  • 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
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Guethary - Les Alcyons/Avalanche surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest