Guethary - Les Alcyons/Avalanche Surf Break

Lat Long: 43.43° N 1.62° W

Guethary - Les Alcyons/Avalanche 48 hour detailed Surf Forecast

Issued: 7 am 05 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 (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 3ft (0.9m), 9s period with NW swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 4.5ft (1.3m), 12s period with NW swell.
  • Evening surf: Evening surf (05 Sep, local time) - 5ft (1.6m), 12s period with NW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 2PM is: 1.3m 11s primary swell from a Northwest direction (forecast issued at 07:00am September 05). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (05 Sep)3ft (0.9m)9s
Afternoon (05 Sep)4.5ft (1.3m)12s
Evening (05 Sep)5ft (1.6m)12s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Sun morning, min 18°C on Sat morning). Wind will be generally light.

Saturday
5
Sunday
6
Monday
7
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)
1
1
2
0
1
3
3
2
3
3
3
2
0
0
0
1
1
1
1
1
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)
0.9
NW
9
0.9
NW
9
0.9
NW
9
1.3
NW
11
1.5
NW
13
1.6
NW
13
1.7
NW
12
1.8
NW
13
1.7
NW
12
1.6
NW
12
1.6
NW
12
1.5
NW
12
1.3
NW
11
1.2
NW
11
1.3
NW
11
1.1
NW
10
0.9
NW
10
0.9
NW
10
1.1
NW
10
1
NW
9
0.8
WNW
14
0.9
WNW
13
1.2
WNW
12
Wave Graph
Metric surfscale
Energy kJ
112
118
118
396
732
825
868
990
827
736
661
573
422
332
361
226
163
160
211
167
220
303
426
Wind (km/h)
5
SSW
0
SSE
10
ENE
10
N
10
N
5
WNW
5
ESE
10
W
10
S
5
SE
5
W
10
W
15
WNW
15
WSW
15
WSW
10
W
10
WSW
5
WSW
5
W
10
NW
15
NW
5
NW
10
W
Wind State
glassy
glassy
cross-off
cross-on
cross-on
glassy
glassy
cross-on
cross-off
off
glassy
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
High Tide
11:21AM2.90m
00:20AM2.78m
1:01PM2.94m
1:56AM2.90m
2:24PM3.19m
Low Tide
4:53AM1.11m
5:44PM1.06m
6:25AM1.19m
7:21PM0.98m
7:53AM1.03m
8:38PM0.71m
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
clear
part cloud
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:35
8:34
8:31
 mm
Temp °C
19
18
21
27
27
24
27
23
23
25
29
26
23
22
20
19
19
19
20
22
22
20
19
Feels °C
22
20
22
26
27
26
28
23
23
25
29
26
24
22
21
20
21
21
22
23
22
22
21
  • 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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