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Lostmarc'h Surf Forecast
/ Brittany – Finistere (75 surf breaks) /
Surf Forecasts:
Lostmarc'h surfForecast / Brittany – Finistere / France
48hr Weather and Surf, issued 1 am Thursday 21 May 2026 CESTForecast 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
13.9° C
(Which is slightly warmer than usual)How big are the waves at Lostmarc'h today?
The current surf forecast for Lostmarc'h at 8AM is: 1.9m 12s primary swell from a West direction (forecast issued at 01:00am May 21). The wind direction is predicted to be cross-offshore.
| Time (CEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 6ft (1.9m) | 12s |
| Afternoon (21 May) | 5ft (1.6m) | 11s |
| Evening (21 May) | 4.5ft (1.4m) | 11s |
Table - waves today at Lostmarc'h. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sat night, min 14°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | |
1544 | 1225 | 986 | 855 | 695 | 448 | 440 | 432 | 434 | 566 | 721 | 695 | 695 | 606 | 595 | 496 | 506 | 486 | 400 | 400 | 353 | 361 | 308 | 284 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | off | cross-off | glassy | cross-on | cross-off | cross-off | |
High Tide | 8:59AM4.90m | 9:22PM5.02m | 9:59AM4.54m | 10:25PM4.69m | 11:09AM4.26m | |||||||||||||||||||
Low Tide | 2:53AM0.45m | 3:14PM0.83m | 3:52AM0.78m | 4:14PM1.15m | 4:57AM1.08m | 5:22PM1.39m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | | | |  | | | | | | | | |
 | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:57 | — | — | — | — | — | — | — | 9:59 | — | — | — | — | — | — | — | 10:00 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 14 | 15 | 18 | 19 | 18 | 19 | 15 | 15 | 15 | 18 | 22 | 22 | 22 | 21 | 20 | 17 | 20 | 20 | 23 | 23 | 23 | 23 |
11 | 11 | 11 | 11 | 13 | 14 | 14 | 16 | 13 | 14 | 14 | 17 | 20 | 19 | 21 | 20 | 18 | 17 | 20 | 20 | 24 | 23 | 23 | 22 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
 kJ | 1544 | 1225 | 986 | 855 | 695 | 448 | 440 | 432 | 434 | 566 | 721 | 695 | 695 | 606 | 595 | 496 | 506 | 486 | 400 | 400 | 353 | 361 | 308 | 284 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | S 6 | S 6 | S 5 | — | — | — | — | SSE 4 | SSE 4 | SSE 4 | SSE 5 | SSE 4 | SSE 4 | SSE 4 | SSE 5 |
| kJ | — | — | — | 9 | 8 | 8 | 8 | 8 | 8 | 32 | 22 | 14 | — | — | — | — | 6 | 4 | 4 | 2 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 14 | — | — | — | — | — | — | — | — | — | SW 14 | — | SW 14 | SW 14 | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — | — | — | — | 8 | — | 8 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 3 | SE 4 | SSE 4 | SSE 5 | S 5 | S 5 | — | — | — | SSE 5 | S 3 | SSE 4 | SSE 4 | — | — | — | — | N 3 | N 3 | N 3 | NNE 3 |
| kJ | — | — | — | 2 | 15 | 25 | 28 | 24 | 34 | — | — | — | 9 | 6 | 9 | 5 | — | — | — | — | 1 | 3 | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 19 | 42 | 41 | 19 | 17 | 1 | 1 | 0 | 0 | 9 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 2 |
Best forecast wave conditions in Finistere - Brittany | ||||||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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