Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Lostmarc'h surf break

Lostmarc'h surfForecast / Brittany – Finistere / France

information circle48hr Weather and Surf, issued 6 pm Thursday 12 Mar 2026 CET
Forecast update in hr  min  s Forecast update imminent
Lostmarc'h surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lostmarc'h sea temperature is
11.1° C
 (Which is normal for this time of year)

How big are the waves at Lostmarc'h today?

The current surf forecast for Lostmarc'h at 2AM is: 5.0m 13s primary swell from a West direction and 1.2m 16s secondary swell from a West direction (forecast issued at 06:00pm March 12). The wind direction is predicted to be onshore.

Time (CET) & DateWave HeightWave Period
Morning (13 Mar)18ft (5.5m)16s
Afternoon (13 Mar)20ft (6.0m)16s
Evening (13 Mar)18ft (5.5m)16s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
12
Friday
13
Saturday
14
Sunday
15
4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM
Rating
(10 max)
0
0
0
0
0
0
!
!
!
!
0
!
0
!
!
4
2
2
3
1
1
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
WNW
3.5
WNW
4.5
W
5
W
5
W
5.5
WNW
5.5
WNW
6
WNW
5.5
WNW
5.5
WNW
5
WNW
5
WNW
5
WNW
4.5
WNW
4
WNW
3.5
WNW
3.5
WNW
3
WNW
3
WNW
3
WNW
2.5
WNW
2.5
WNW
2.4
WNW
2.3
WNW
Period(s) (?)131312131414161616161616151514141414131313131213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)32963646621679609791119131588717240169311507213662116141061085596761556647843680300027672376208817711619
Wind
(km/h)
45
SSW
50
SW
55
SW
55
SW
40
WNW
45
W
40
W
35
W
35
WNW
40
WNW
45
WNW
35
WNW
45
NW
25
NNW
20
NNW
15
NW
20
NW
15
WNW
15
NW
15
WNW
20
W
20
W
20
SW
35
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
on		cross-
on		crosscross-
on		cross-
on		ononcross-
on
High Tide
/ height (m)
11:25PM
3.50
12:38PM
3.42
1:23AM
3.67
2:05PM
3.74
2:26AM
4.07
Low Tide
/ height (m)
5:04PM
2.23
6:13AM
2.20
6:57PM
2.18
7:49AM
1.95
8:13PM
1.84
8:45AM
1.52
Thursday
12
Friday
13
Saturday
14
Sunday
15
Sunrise------7:35-------7:33-------7:31-
Sunset-7:17-------7:19-------7:21------
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
cloud
rain showers
clear
clear
clear
cloud
rain showers
clear
clear
cloud
cloud
cloud
Rain (mm)
----2211211--1----1-----
Temp. °C11121212119987778888999999101010
Feels °C (?)2322300-1-1-3-4-1-312444444553
  • 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

Latest Updates

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling
Ben Mondy

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling

Get 16% off your subscription with code 16DAYS—available for 16 days only, until March 25, 2026. Surf-Forecast Premium just got better. All paid subscribers will now see a full 16-day forecast, surf reports and wind and tide data for over 7,000 of the world's best surf spots. Premium members will also have access to a new high-resolution forecast model, which enhances our current forecasts by making them quicker and more accurate. That’s more lead time. More confidence. More chances to score g

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal
travel
Surf Forecast

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal

Surf road trips just got even better. Surf-Forecast users can now save up to 20% on SIXT rental cars worldwide during the promotional period until March 31, 2026. Whether you’re planning a legendary California road trip, chasing waves along Europe’s coasts, or exploring remote surf destinations, this exclusive SIXT offer helps you travel smarter and cheaper. And if you want some inspiration on where to go, check out our article Five Iconic Surf Road Trips. Click and get your SIXT discount

Read more

Read more

Discover more articles and updates in the Greenroom.

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.

View detailed surf forecast for Lostmarc'h at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest