Lostmarc'h Surf Break

Lat Long: 48.21° N 4.56° W

Lostmarc'h 48 hour detailed Surf Forecast

Issued: 1 am 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lostmarc'h sea temperature is
18.5°C
1.2° 

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 (09 Sep):

  • Morning surf: Morning surf (09 Sep, local time) - 6ft (1.8m), 9s period with NW swell.
  • Afternoon surf: Afternoon surf (09 Sep, local time) - 5.5ft (1.7m), 10s period with WNW swell.
  • Evening surf: Evening surf (09 Sep, local time) - 4.5ft (1.4m), 10s period with NW swell.

The current surf forecast for Lostmarc'h at 8AM is: 1.8m 9s primary swell from a Northwest direction and 1.1m 8s secondary swell from a West-southwest direction (forecast issued at 01:00am September 09). The wind direction is predicted to be cross-offshore.

Time (CEST) & DateWave HeightWave Period
Morning (09 Sep)6ft (1.8m)9s
Afternoon (09 Sep)5.5ft (1.7m)10s
Evening (09 Sep)4.5ft (1.4m)10s

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


Short Range Forecast

Some drizzle, heaviest during Fri morning. Very mild (max 19°C on Fri afternoon, min 16°C on Wed morning). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
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)
1
1
2
1
0
0
1
1
2
1
0
0
0
0
0
0
0
0
2
2
0
0
0
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)
1.8
NW
9
1.8
NW
9
1.8
NW
9
1.7
NW
9
1.7
NW
10
1.5
NW
10
1.4
NW
10
1.2
NW
10
1.1
NW
9
1
NW
9
0.9
WNW
9
0.8
WNW
9
0.7
NW
8
0.9
W
8
1
W
8
1.4
W
8
1.8
W
10
1.9
W
10
1.8
W
10
1.6
W
10
1.4
W
9
1.3
W
9
1.2
W
9
1.1
W
8
Wave Graph
Metric surfscale
Energy kJ
492
503
526
502
535
424
348
269
190
159
138
99
70
108
130
251
627
646
587
463
311
262
214
165
Wind (km/h)
20
NW
20
NW
20
NNW
20
NW
20
NW
20
NW
15
NW
5
NNW
5
SSE
10
S
10
SSW
15
SSW
20
SW
20
SW
20
SW
20
SW
20
WSW
20
SW
10
NNW
5
WNW
15
WNW
20
WNW
15
NW
10
N
Wind State
cross
cross
cross-off
cross
cross-on
cross-on
cross
cross
glassy
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross
glassy
cross-on
cross-on
cross-on
cross-off
High Tide
4:16AM4.89m
4:34PM5.32m
5:00AM5.26m
5:16PM5.65m
5:39AM5.53m
5:55PM5.83m
Low Tide
10:24AM0.70m
10:52PM0.31m
11:08AM0.33m
11:34PM0.02m
11:48AM0.09m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
light rain
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:46
7:47
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:44
8:42
8:39
 mm
1
Temp °C
16
16
16
16
17
17
16
16
16
16
16
16
17
17
17
17
18
18
18
18
18
19
19
18
Feels °C
12
12
13
12
13
14
13
15
16
15
15
14
14
14
14
14
16
17
18
19
16
16
17
17
  • 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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