Plage de Lost-Marc'h
Coastal areas · France
Rating right now
A april–october beach on the Celtic Sea near Coastal areas, Plage de Lost-Marc'h is exposed to W swell — SW–NW on the forecast is when it lights up, ideally with a NE–SE wind.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~15.8°C (60.4°F) on average
Jan
11°C
51.8°F · 9.6–13°C
Feb
10.4°C
50.7°F · 8.4–11.6°C
Mar
10.3°C
50.5°F · 8.8–11.6°C
Apr
11.3°C
52.3°F · 10.2–13.3°C
May
13.1°C
55.6°F · 11–15.9°C
Jun
14.7°C
58.5°F · 13.1–16.5°C
Jul
15.9°C
60.6°F · 14–18.1°C
Aug
16.1°C
61°F · 14.8–18.4°C
Sep
15.8°C
60.4°F · 14–17.4°C
Oct
15°C
59°F · 13.5–17°C
Nov
13.9°C
57°F · 12.7–15.7°C
Dec
12.3°C
54.1°F · 10.8–13.6°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
SW–NW
Best wind
NE–SE
Break type
Beach break
Best season
April–October
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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