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 pm 26 Sep 2026 (local time)

Forecast update in  hr  min

Today's Guethary - Les Alcyons/Avalanche sea temperature is
22.3°C
3.1° 

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 (26 Sep):

  • Afternoon surf: Afternoon surf (26 Sep, local time) - 7ft (2.1m), 14s period with NW swell.
  • Evening surf: Evening surf (26 Sep, local time) - 6ft (1.9m), 13s period with NW swell.

The current surf forecast for Guethary - Les Alcyons/Avalanche at 11PM is: 1.9m 13s primary swell from a Northwest direction and 0.4m 6s secondary swell from a North-northwest direction (forecast issued at 07:00pm September 26). The wind direction is predicted to be glassy and the swell rating is 4.

Time (CEST) & DateWave HeightWave Period
Morning (26 Sep)--
Afternoon (26 Sep)7ft (2.1m)14s
Evening (26 Sep)6ft (1.9m)13s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sun night. Warm (max 28°C on Tue afternoon, min 18°C on Sat night). Wind will be generally light.

Sat
26
Sunday
27
Monday
28
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
4
4
3
3
3
3
1
2
3
0
2
2
2
2
1
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
WNW
13
2
NW
13
1.9
NW
13
1.7
NW
12
1.6
NW
12
1.6
NW
12
1.6
NW
12
1.6
NW
12
1.6
NW
12
1.5
NW
11
1.4
NW
11
1.3
NW
11
1.3
NW
11
1.2
NW
11
1.3
NW
11
1.4
NW
10
1.5
NW
11
1.4
NW
11
1.6
NW
12
Wave Graph
Metric surfscale
Energy kJ
1380
1346
1129
864
760
760
689
666
655
573
488
382
382
341
368
392
524
512
683
Wind (km/h)
15
NNW
5
NE
0
WNW
5
WSW
5
SSE
5
SE
5
SSW
10
NW
10
NNW
5
WNW
15
W
5
ESE
10
SE
10
SSE
5
S
10
NW
5
NNW
10
WNW
10
SSE
Wind State
cross-on
glassy
glassy
glassy
glassy
off
glassy
on
on
glassy
cross-on
glassy
off
cross-off
glassy
on
cross-on
cross-on
off
High Tide
5:09PM3.87m
5:29AM3.77m
5:43PM3.97m
6:02AM3.85m
6:18PM3.97m
Low Tide
11:17PM0.05m
11:29AM0.08m
11:50PM-0.02m
12:04PM0.02m
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
part cloud
cloud
thunderstorm
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
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7:58
—
—
—
—
—
—
—
7:58
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
—
—
—
—
—
—
—
7:54
—
—
—
—
—
—
—
7:53
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 mm
—
—
—
—
—
—
—
—
—
—
1
—
—
—
—
—
—
1
1
Temp °C
20
19
18
18
19
19
23
24
21
19
19
18
19
19
21
22
21
19
20
Feels °C
19
20
19
19
20
19
24
24
22
20
19
20
20
20
23
23
23
20
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
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