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 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Guethary - Les Alcyons/Avalanche sea temperature is
25.1° C
4.2° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.2m), 8s period with WNW swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 0.5ft (0.2m), 8s period with WNW swell.
  • Evening surf: Evening surf (18 Jul, local time) - 0.5ft (0.2m), 8s period with WNW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 11AM is: 0.2m 8s primary swell from a West-northwest direction and 0.3m 4s secondary swell from a North-northwest direction (forecast issued at 07:00am July 18). The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (18 Jul)0.5ft (0.2m)8s
Afternoon (18 Jul)0.5ft (0.2m)8s
Evening (18 Jul)0.5ft (0.2m)8s

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


Short Range Forecast

Mostly dry. Warm (max 25°C on Sun afternoon, min 19°C on Sun morning). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
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
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)
0.4
NW
4
0.4
NW
4
0.2
WNW
8
0.2
WNW
8
0.2
WNW
8
0.2
WNW
8
0.2
WNW
9
0.2
WNW
9
0.2
WNW
9
0.4
NNW
4
0.2
NNW
10
0.4
NNW
5
0.3
NW
9
0.4
NW
9
0.8
NNW
6
1.3
NNW
7
1.2
NNW
7
0.9
NNW
7
0.9
NNW
7
0.9
NNW
7
1
NNW
7
1
N
7
1.1
NNW
7
Wave Graph
Metric surfscale
Energy kJ
7
7
7
7
7
7
7
8
7
7
10
9
13
20
48
149
124
77
62
75
105
100
118
Wind (km/h)
5
NNE
5
ENE
5
NNE
10
NW
15
NNW
10
NW
5
WSW
5
SW
10
SW
10
SW
5
WNW
10
NW
15
NW
5
WSW
15
WSW
15
WSW
15
WSW
10
WSW
10
W
10
NW
15
WNW
15
WSW
15
WSW
Wind State
glassy
glassy
cross
on
on
on
glassy
glassy
cross
cross
cross-on
on
on
cross-on
cross
cross
cross
cross
cross-on
on
on
cross-on
cross-on
High Tide
8:13AM3.57m
8:30PM3.83m
8:57AM3.39m
9:15PM3.56m
9:43AM3.19m
10:03PM3.26m
Low Tide
2:06PM0.27m
2:40AM0.26m
2:52PM0.47m
3:25AM0.51m
3:40PM0.70m
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:43
9:42
9:40
 mm
Temp °C
20
20
22
22
23
22
21
20
20
19
22
24
25
24
22
21
21
21
23
24
24
23
21
Feels °C
22
22
24
22
23
23
23
22
22
20
24
25
25
25
22
20
21
21
23
25
23
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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