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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 Tuesday 19 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
13.7° C
(Which is slightly warmer than usual)How big are the waves at Lostmarc'h today?
The current surf forecast for Lostmarc'h at 9AM is: 2.1m 8s primary swell from a Southwest direction and 1.4m 9s secondary swell from a West direction, 0.9m 10s secondary swell from a West-northwest direction (forecast issued at 01:00am May 19). The wind direction is predicted to be onshore.
| Time (CEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 7ft (2.1m) | 8s |
| Afternoon (19 May) | 8ft (2.5m) | 8s |
| Evening (19 May) | 8ft (2.5m) | 9s |
Table - waves today at Lostmarc'h. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 20°C on Thu afternoon, min 14°C on Tue morning). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the SE by Thu night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 7 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | W 10 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | |
583 | 823 | 528 | 902 | 1020 | 980 | 1097 | 1382 | 1714 | 5233 | 5140 | 4981 | 4192 | 3287 | 2601 | 2043 | 1547 | 1113 | 986 | 763 | 607 | 517 | 440 | 432 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | |
High Tide | 7:15AM5.54m | 7:35PM5.62m | 8:05AM5.26m | 8:26PM5.36m | 8:59AM4.90m | 9:22PM5.02m | ||||||||||||||||||
Low Tide | 1:08AM-0.03m | 1:29PM0.24m | 1:59AM0.16m | 2:19PM0.51m | 2:53AM0.45m | 3:14PM0.83m | ||||||||||||||||||
 |  |  |  | |  | |  |  | |  | | | | |  | | | | | | | | | |
 | — | 6:33 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:54 | — | — | — | — | — | — | — | 9:55 | — | — | — | — | — | — | — | 9:57 | — |
2 | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 16 | 19 | 20 | 19 | 20 |
4 | 8 | 8 | 7 | 7 | 7 | 7 | 9 | 8 | 9 | 10 | 11 | 10 | 11 | 13 | 13 | 13 | 11 | 11 | 13 | 15 | 16 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | W 9 | WNW 10 | W 15 | W 15 | W 14 | W 17 | W 16 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 |
 kJ | 397 | 286 | 325 | 127 | 17 | 17 | 16 | 153 | 620 | 3555 | 5140 | 4981 | 4192 | 3287 | 2601 | 2043 | 1547 | 1113 | 986 | 763 | 607 | 517 | 440 | 432 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | W 16 | WNW 10 | W 15 | — | W 19 | WSW 18 | — | W 13 | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 240 | 5 | 182 | 4 | — | 7 | 32 | — | 90 | — | — | — | — | — | — | — | — | — | — | 9 | 8 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | W 16 | — | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 |
| kJ | — | — | 5 | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | W 10 | W 14 | SSW 7 | — | — | — | — | — | — | — | — | — | SSE 3 | S 4 | S 4 | S 4 |
| kJ | 583 | 823 | 528 | 902 | 1020 | 980 | 1097 | 1382 | 1714 | 5233 | 117 | — | — | — | — | — | — | — | — | — | 8 | 7 | 9 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 398 | 398 | 395 | 467 | 398 | 384 | 341 | 398 | 398 | 238 | 9 | 86 | 45 | 45 | 18 | 18 | 17 | 17 | 17 | 19 | 39 | 19 | 17 | 17 |
Best forecast wave conditions in Finistere - Brittany | ||||||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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