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 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Guethary - Les Alcyons/Avalanche sea temperature is
23.5°C
2.6° 

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 (06 Sep):

  • Morning surf: Morning surf (06 Sep, local time) - 5ft (1.6m), 12s period with NW swell.
  • Afternoon surf: Afternoon surf (06 Sep, local time) - 4.5ft (1.4m), 11s period with NW swell.
  • Evening surf: Evening surf (06 Sep, local time) - 4ft (1.2m), 11s period with NW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 5AM is: 1.7m 12s primary swell from a Northwest direction (forecast issued at 01:00am September 06). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (CEST) & DateWave HeightWave Period
Morning (06 Sep)5ft (1.6m)12s
Afternoon (06 Sep)4.5ft (1.4m)11s
Evening (06 Sep)4ft (1.2m)11s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Tue night. Warm (max 27°C on Sun morning, min 18°C on Mon night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
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)
3
3
3
3
2
0
1
1
1
1
1
1
1
0
1
1
1
2
2
1
0
0
0
0
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)
1.8
NW
13
1.7
NW
12
1.7
NW
12
1.6
NW
12
1.4
NW
12
1.3
NW
11
1.3
NW
11
1.2
NW
11
1.1
NW
10
0.9
NW
10
1.1
NW
10
0.8
NW
10
1
NW
9
0.8
WNW
14
0.9
WNW
13
1.1
WNW
12
1.1
WNW
12
1.1
WNW
11
1.1
WNW
11
1
WNW
11
1
WNW
11
1
WNW
11
1
WNW
10
1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
1052
827
800
661
519
422
371
319
256
163
213
142
167
217
246
344
341
296
280
226
222
222
194
186
Wind (km/h)
10
WSW
10
SSW
0
SSE
0
SE
10
NW
10
NW
10
W
15
SW
10
WSW
10
WSW
5
W
5
WSW
10
NW
10
NW
5
NNW
10
W
5
WSW
5
SSW
5
SW
10
WNW
15
WNW
15
WNW
15
WNW
10
WNW
Wind State
cross-on
cross-off
glassy
glassy
on
on
cross-on
cross
cross
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
glassy
glassy
cross-on
on
on
cross-on
on
High Tide
00:20AM2.78m
1:01PM2.94m
1:56AM2.90m
2:24PM3.19m
3:05AM3.16m
3:25PM3.51m
Low Tide
6:25AM1.19m
7:21PM0.98m
7:53AM1.03m
8:38PM0.71m
8:59AM0.75m
9:35PM0.40m
part cloud
part cloud
cloud
cloud
cloud
clear
thunderstorm
part cloud
clear
clear
cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:34
8:31
8:30
 mm
1
Temp °C
24
23
23
27
27
26
23
20
20
19
19
20
22
22
20
19
18
18
18
20
21
21
21
19
Feels °C
24
23
24
28
28
26
25
20
22
21
21
22
24
23
22
21
20
20
20
21
21
21
21
19
  • 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 

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