Lostmarc'h Surf Break

Lat Long: 48.21° N 4.56° W

Lostmarc'h 48 hour detailed Surf Forecast

Issued: 1 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Lostmarc'h sea temperature is
18.0°C
0.3° 

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 (02 Sep):

  • Morning surf: Morning surf (02 Sep, local time) - 2.5ft (0.8m), 8s period with W swell.
  • Afternoon surf: Afternoon surf (02 Sep, local time) - 4.5ft (1.3m), 7s period with W swell.
  • Evening surf: Evening surf (02 Sep, local time) - 5.5ft (1.7m), 8s period with W swell.

The current surf forecast for Lostmarc'h at 8PM is: 1.7m 8s primary swell from a West direction and 0.1m 15s secondary swell from a Southwest direction, 0.1m 15s secondary swell from a Southwest direction (forecast issued at 01:00pm September 02). The wind direction is predicted to be onshore.

Time (CEST) & DateWave HeightWave Period
Morning (02 Sep)2.5ft (0.8m)8s
Afternoon (02 Sep)4.5ft (1.3m)7s
Evening (02 Sep)5.5ft (1.7m)8s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light.

Wed
2
Thursday
3
Friday
4
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
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
W
8
1.2
W
6
1.5
W
7
1.7
W
8
1.6
W
8
1.4
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.3
W
8
1.4
W
9
1.5
W
8
1.6
W
8
1.7
WNW
9
1.8
WNW
9
1.6
WNW
9
1.9
WNW
11
Wave Graph
Metric surfscale
Energy kJ
100
115
230
327
291
223
187
191
191
203
203
203
208
235
286
309
349
408
505
388
901
Wind (km/h)
25
SSW
30
SSW
30
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
SW
20
WSW
20
SW
20
WSW
15
WSW
15
NW
15
NNW
15
N
Wind State
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross
cross-off
High Tide
8:35AM5.16m
8:56PM5.06m
9:18AM4.85m
9:43PM4.66m
10:11AM4.48m
10:47PM4.24m
Low Tide
2:50PM0.63m
3:13AM0.79m
3:37PM0.96m
4:04AM1.18m
4:37PM1.32m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:58
8:55
8:53
 mm
Temp °C
17
18
18
18
18
18
19
19
19
20
20
20
19
19
19
19
19
20
18
18
16
Feels °C
13
14
15
16
17
17
18
19
19
20
20
20
18
18
18
18
19
20
18
17
14
  • 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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