Lostmarc'h Surf Break

Lat Long: 48.21° N 4.56° W

Issued: 1 pm 17 Jun 2026 (local time)

Forecast update in  hr  min

Today's Lostmarc'h sea temperature is
16.8° C

1.4°C warmer than normal for this time of year

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 (17 Jun):

  • Morning surf: Morning surf (17 Jun, local time) - 5ft (1.5m), 11s period with W swell.
  • Afternoon surf: Afternoon surf (17 Jun, local time) - 5ft (1.5m), 11s period with W swell.
  • Evening surf: Evening surf (17 Jun, local time) - 5ft (1.5m), 10s period with W swell.

The current surf forecast for Lostmarc'h at 8PM is: 1.5m 10s primary swell from a West direction (forecast issued at 01:00pm June 17). The wind direction is predicted to be onshore.

Time (CEST) & DateWave HeightWave Period
Morning (17 Jun)5ft (1.5m)11s
Afternoon (17 Jun)5ft (1.5m)11s
Evening (17 Jun)5ft (1.5m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 18°C on Thu morning, min 17°C on Wed afternoon). Wind will be generally light.

Wed
17
Thursday
18
Friday
19
Sat
20
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
2 AM
5 AM
8 AM
Rating
(10 max)
0
0
0
0
1
2
2
2
2
0
0
0
2
2
2
0
0
0
0
0
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)
1.5
W
11
1.5
W
11
1.5
W
11
1.5
W
10
1.4
W
10
1.4
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.2
W
10
1.2
W
9
1.2
W
9
1.2
W
9
1.2
W
9
1.1
W
9
1.1
W
9
1.1
W
8
1.1
W
8
1.2
W
8
1.2
W
8
1.2
W
8
1.2
W
8
Wave Graph
Metric surfscale
Energy kJ
534
515
496
477
400
384
325
327
327
332
326
267
251
246
240
230
185
181
171
163
190
185
182
173
Wind (km/h)
15
SW
15
SW
15
SW
10
WSW
10
SW
5
SSW
5
SE
5
SE
5
SW
10
W
15
W
15
WNW
10
N
0
NNE
0
WNW
10
SSW
15
SW
15
SW
15
SW
15
SW
15
SSW
15
SW
10
W
5
WSW
Wind State
cross-on
cross-on
on
on
cross-on
glassy
cross-off
cross-off
glassy
on
cross-on
cross-on
cross-off
glassy
glassy
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
glassy
High Tide
7:28PM5.70m
7:57AM5.30m
8:18PM5.53m
8:48AM5.06m
9:09PM5.27m
Low Tide
1:21PM0.24m
1:52AM0.08m
2:10PM0.38m
2:44AM0.28m
3:01PM0.60m
3:36AM0.55m
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:21
10:21
10:21
10:22
 mm
Temp °C
17
17
17
17
17
17
17
17
18
18
18
18
18
17
17
17
17
18
18
18
18
18
17
17
Feels °C
16
16
16
17
17
18
17
17
18
17
16
16
17
18
18
16
15
17
16
17
17
17
17
18
Swell 1
Height (m)
Direction
Period (s)
1.5
W
11
1.5
W
11
1.5
W
11
1.5
W
10
1.4
W
10
1.4
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.3
W
10
1.2
W
10
1.2
W
9
1.2
W
9
1.2
W
9
1.2
W
9
1.1
W
9
1.1
W
9
1.1
W
8
1.1
W
8
1.2
W
8
1.2
W
8
1.2
W
8
1.2
W
8
Energy kJ
534
515
496
477
400
384
325
327
327
332
326
267
251
246
240
230
185
181
171
163
190
185
182
173
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
12
0.1
S
11
0.1
SW
10
Energy kJ
5
2
4
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
1
2
2
2
2
2
2
1
2
2
2
1
1
1
1
1
1
1
1
1
Distance (km)
18
45
18
9
9
0
0
0
0
18
18
7
0
0
0
18
18
18
45
18
18
18
18
0
Best forecast wave conditions in Finistere - Brittany
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
Best forecast wave conditions in France
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
5
4
4
4
5
5
9
9
9
6
5
5
6
5
6
6
6
7
4
4
7
4
4
5
  • 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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