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 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Guethary - Les Alcyons/Avalanche sea temperature is
24.2° C
2.5° 

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 (10 Aug):

  • Morning surf: Morning surf (10 Aug, local time) - 2.5ft (0.7m), 9s period with NW swell.
  • Afternoon surf: Afternoon surf (10 Aug, local time) - 2.5ft (0.7m), 9s period with NW swell.
  • Evening surf: Evening surf (10 Aug, local time) - 2.5ft (0.7m), 10s period with NW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 6AM is: 0.7m 9s primary swell from a Northwest direction and 0.2m 8s secondary swell from a West direction, 0.4m 4s secondary swell from a West-northwest direction (forecast issued at 01:00am August 10). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (10 Aug)2.5ft (0.7m)9s
Afternoon (10 Aug)2.5ft (0.7m)9s
Evening (10 Aug)2.5ft (0.7m)10s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Wed afternoon, min 19°C on Tue morning). Wind will be generally light.

Monday
10
Tuesday
11
Wednesday
12
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.7
NW
10
0.7
NW
9
0.7
NW
9
0.7
NW
9
0.8
NW
9
0.7
NW
9
0.7
NW
9
0.7
NW
10
0.7
NW
9
0.7
NW
9
0.7
NW
9
0.7
NW
9
0.6
NW
9
0.6
NW
9
0.6
NW
9
0.6
NW
8
0.6
NW
8
0.6
NW
8
0.6
NW
8
0.6
NW
8
0.5
NW
8
0.4
WNW
10
0.4
WNW
10
0.4
WNW
9
Wave Graph
Metric surfscale
Energy kJ
90
87
83
81
99
81
87
90
81
79
78
76
59
59
59
55
55
55
57
44
31
34
33
29
Wind (km/h)
10
W
10
W
10
W
10
WSW
10
NW
10
NNW
5
NW
5
W
5
SW
5
SW
10
SW
5
NW
10
NNW
15
NW
10
WNW
5
WSW
10
SW
5
SW
5
SSW
5
NNE
10
N
15
NNW
5
WNW
15
W
Wind State
cross-on
cross-on
cross-on
cross-on
on
on
on
glassy
cross
cross
cross
glassy
cross-on
on
on
cross-on
cross
cross
glassy
glassy
cross-on
cross-on
cross-on
cross-on
High Tide
3:06AM3.18m
3:31PM3.46m
4:06AM3.43m
4:25PM3.77m
4:56AM3.64m
5:13PM4.01m
Low Tide
9:04AM0.74m
9:41PM0.43m
10:01AM0.47m
10:34PM0.15m
10:50AM0.23m
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:16
9:15
9:14
 mm
1
Temp °C
21
20
20
21
23
23
22
21
20
20
19
22
24
24
23
21
21
20
20
24
28
29
25
23
Feels °C
23
21
22
22
24
24
23
23
22
22
20
24
25
25
25
23
23
22
22
27
29
30
28
24
  • 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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