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Surf Forecasts:
Lostmarc'h surfForecast / Brittany – Finistere / France
48hr Weather and Surf, issued 6 pm Thursday 11 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 11PM is: 4.5m 14s primary swell from a West-southwest direction and 1.8m 19s secondary swell from a West direction (forecast issued at 06:00pm December 11). The wind direction is predicted to be cross-onshore.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | - | - |
| Afternoon (11 Dec) | 11ft (3.5m) | 13s |
| Evening (11 Dec) | 13ft (4.0m) | 14s |
Table - waves today at Lostmarc'h. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 14 | 14 | 16 | 16 | 16 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3662 | 5257 | 7091 | 7994 | 12747 | 11426 | 12398 | 20651 | 22216 | 21235 | 18681 | 16387 | 14990 | 13574 | 10938 | 8576 | 7288 | 4822 | 3859 | 3340 | 2327 | 2059 | 2224 | 2759 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | off | off | glass | glass | cross- off | cross | cross | cross | cross- on | cross |
High Tide / height (m) | 10:04PM 4.16 | 10:29AM 4.28 | 11:13PM 4.00 | 11:39AM 4.11 | 12:22AM 3.99 | 12:47PM 4.07 | ||||||||||||||||||
Low Tide / height (m) | 3:55PM 1.20 | 4:16AM 1.50 | 4:57PM 1.43 | 5:22AM 1.66 | 6:01PM 1.54 | 6:29AM 1.69 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:59 | - | - | - | - | - | - | - | 9:00 | - | - | - | - | - | - | - | 9:00 | - |
| Sunset | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - |
 |  |  | | | |  |  | | |  | |  | |  | | | | | | | | | | |
Rain (mm) | - | 1 | - | 1 | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 11 | 12 |
| Feels °C (?) | 5 | 6 | 6 | 6 | 8 | 8 | 7 | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 7 | 8 | 9 | 9 | 8 | 7 | 6 | 7 | 7 | 8 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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