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Surf Forecasts:
Lostmarc'h surfForecast / Brittany – Finistere / France
48hr Weather and Surf, issued 12 am Sunday 14 Dec 2025 CETForecast 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
12.2° 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 4AM is: 2.5m 13s primary swell from a West-northwest direction (forecast issued at 12:00am December 14). The wind direction is predicted to be cross-shore.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 8ft (2.5m) | 13s |
| Afternoon (14 Dec) | 10ft (3.0m) | 13s |
| Evening (14 Dec) | 10ft (3.0m) | 14s |
Table - waves today at Lostmarc'h. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3806 | 3025 | 2327 | 2187 | 2323 | 2884 | 3637 | 3848 | 3648 | 3518 | 3448 | 3605 | 3297 | 4822 | 4086 | 4602 | 4178 | 4491 | 5457 | 6068 | 4671 | 4832 | 4485 | 4110 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:22AM 3.99 | 12:47PM 4.07 | 1:23AM 4.10 | 1:44PM 4.14 | 2:12AM 4.26 | 2:33PM 4.28 | ||||||||||||||||||
Low Tide / height (m) | 6:29AM 1.69 | 7:02PM 1.54 | 7:31AM 1.60 | 7:56PM 1.46 | 8:24AM 1.44 | |||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 9:00 | - | - | - | - | - | - | - | 9:00 | - | - | - | - | - | - | - | 9:02 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - |
 |  | | |  |  |  | | |  | | | | |  |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 2 | 4 | 3 | 1 | 1 | 1 | - | - |
| Temp. °C | 10 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 10 |
| Feels °C (?) | 7 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 6 | 6 | 4 | 1 | 6 | 6 | 4 | 5 | 4 | 5 | 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)
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