Les Sables-d'Olonne (FRLSO) — marine weather & port guide
Les Sables-d'Olonne is a port in France at 46°30.0′N 1°47.0′W. Today (Aug 3): W wind 3–8 kn, waves 0.6–0.7 m, from the ECMWF IFS run 2026-08-03 12z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 46°30.0′N 1°47.0′W |
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| UN/LOCODE | FRLSO |
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| Harbor size | Medium |
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| Harbor type | River basin harbor |
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| Shelter | Fair |
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| Channel depth | 6 m |
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| Anchorage depth | 8 m |
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| Tide range | 11 m |
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| Pilotage | Compulsory |
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| Time zone | Europe/Paris |
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10-day marine forecast — Les Sables-d'Olonne
| Date | Wind | Gusts | Waves |
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| W 3–8 kn | 16 kn | 0.6–0.7 m |
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| W 7–12 kn | 16 kn | 0.7–1.1 m |
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| WNW 8–14 kn | 18 kn | 1.1–1.3 m |
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| N 11–17 kn | 23 kn | 1.2–1.3 m |
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| NNE 10–15 kn | 20 kn | 0.6–1.1 m |
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| ENE 2–9 kn | 11 kn | 0.4–0.6 m |
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| NW 10–14 kn | 17 kn | 0.5–0.7 m |
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| N 13–13 kn | 19 kn | 1.4–1.4 m |
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| ENE 8–8 kn | 18 kn | 1.2–1.2 m |
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| WNW 10–10 kn | 14 kn | 0.7–0.7 m |
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Forecast from the ECMWF IFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
Frequently asked
How is the weather at Les Sables-d'Olonne right now?
As of the ECMWF IFS run 2026-08-03 12z: W wind 3–8 kn, waves 0.6–0.7 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Les Sables-d'Olonne?
Les Sables-d'Olonne is classed as a medium harbor (river basin harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Les Sables-d'Olonne?
Per the NGA World Port Index, the entrance channel carries about 6 m and anchorage depths run about 8 m. Verify against current official charts before entry.
What restricts entry to Les Sables-d'Olonne?
Entry is affected by tidal windows, overhead clearance limits. Check the live forecast on this page and official notices before approach.