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Surf Forecasts:
Lostmarc'h surfForecast / Brittany – Finistere / France
48hr Weather and Surf, issued 12 pm Monday 08 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
12.3° 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 7PM is: 5.5m 18s primary swell from a West-southwest direction (forecast issued at 12:00pm December 08). The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Dec) | 11ft (3.5m) | 12s |
| Afternoon (08 Dec) | 13ft (4.0m) | 18s |
| Evening (08 Dec) | 18ft (5.5m) | 18s |
Table - waves today at Lostmarc'h. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| 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 | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 14 | 14 | 13 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 16 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3654 | 2901 | 10628 | 19740 | 19477 | 20340 | 19522 | 16991 | 6963 | 9297 | 9883 | 6538 | 5433 | 5448 | 4769 | 3751 | 2599 | 2028 | 1815 | 1231 | 1134 | 4394 | 5566 | 4708 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross- on | cross- on | on | on | on | cross- on | on | on | on | cross- on | cross- on | cross- on | off | cross- off | cross- off | cross |
High Tide / height (m) | 7:16PM 5.10 | 7:36AM 5.27 | 8:07PM 4.76 | 8:28AM 4.93 | 9:02PM 4.43 | |||||||||||||||||||
Low Tide / height (m) | 1:11PM 0.25 | 1:29AM 0.60 | 2:03PM 0.56 | 2:20AM 0.91 | 2:57PM 0.90 | 3:16AM 1.23 | ||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - |
 |  |  |  |  | | | | | | | | |  | | | |  | |  | | | | | |
Rain (mm) | - | 4 | 6 | 1 | - | - | 1 | - | 1 | 3 | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 11 |
| Feels °C (?) | 7 | 6 | 6 | 7 | 6 | 5 | 4 | 5 | 5 | 3 | 8 | 9 | 8 | 8 | 8 | 9 | 9 | 11 | 10 | 10 | 9 | 9 | 6 | 6 |
- 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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