Lostmarc'h Surf Break

Lat Long: 48.21° N 4.56° W

Lostmarc'h 48 hour detailed Surf Forecast

Issued: 1 am 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lostmarc'h sea temperature is
17.5°C
0.9° 

Lostmarc'h surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Lostmarc'h today (22 Sep):

  • Morning surf: Morning surf (22 Sep, local time) - 3.5ft (1.1m), 11s period with WNW swell.
  • Afternoon surf: Afternoon surf (22 Sep, local time) - 4ft (1.2m), 11s period with WNW swell.
  • Evening surf: Evening surf (22 Sep, local time) - 4.5ft (1.3m), 11s period with WNW swell.

The current surf forecast for Lostmarc'h at 9AM is: 1.1m 11s primary swell from a West-northwest direction (forecast issued at 01:00am September 22). The wind direction is predicted to be offshore and the swell rating is 2.

Time (CEST) & DateWave HeightWave Period
Morning (22 Sep)3.5ft (1.1m)11s
Afternoon (22 Sep)4ft (1.2m)11s
Evening (22 Sep)4.5ft (1.3m)11s

Table - waves today at Lostmarc'h. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 24°C on Thu afternoon, min 18°C on Tue morning). Wind will be generally light.

Tuesday
22
Wednesday
23
Thursday
24
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)
2
2
2
2
1
0
2
2
3
4
4
3
3
3
2
4
3
3
3
3
1
0
2
2
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)
1.3
WNW
12
1.1
WNW
12
1.1
WNW
11
1.1
WNW
11
1.1
WNW
11
1.2
WNW
11
1.3
WNW
11
1.3
WNW
12
1.3
W
17
1.6
W
15
2.1
W
15
2.1
W
14
2.2
WNW
14
2.1
WNW
14
1.9
WNW
13
1.9
WNW
13
1.7
WNW
12
1.6
WNW
12
1.5
WNW
12
1.4
WNW
12
1.3
WNW
11
1.2
WNW
11
1.2
WNW
11
1.1
WNW
11
Wave Graph
Metric surfscale
Energy kJ
421
324
297
286
265
319
401
422
935
1154
1910
1807
1817
1541
1174
1174
847
706
614
521
408
346
319
265
Wind (km/h)
15
ENE
15
ENE
15
ENE
10
E
10
W
15
WNW
20
N
20
NNE
15
NE
10
NE
15
NE
15
NNE
20
N
25
N
25
NNE
20
ENE
15
ENE
15
E
15
E
15
ESE
5
S
10
SSW
5
S
10
NE
Wind State
off
off
off
off
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
cross-on
cross-on
glassy
off
High Tide
2:51AM3.74m
3:11PM4.07m
3:38AM4.14m
3:52PM4.49m
4:14AM4.55m
4:26PM4.90m
Low Tide
8:57AM1.84m
9:29PM1.53m
9:44AM1.45m
10:08PM1.12m
10:21AM1.05m
10:42PM0.72m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:03
8:04
8:06
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:15
8:13
 mm
Temp °C
18
18
18
18
20
20
20
21
20
20
18
18
21
21
20
19
19
19
19
19
23
24
24
22
Feels °C
16
17
17
17
19
18
17
17
17
17
15
15
18
17
16
17
17
17
17
16
21
21
23
20
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Lostmarc'h surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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