Bayonne marine weather forecast
Bayonne (FRBAY) is a port in France at 43°30.0′N 1°29.0′W. Today (Sep 18): NNE wind 6–8 kn, waves 1.6–2.7 m, from the ECMWF IFS run 2026-09-18 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 | 43°30.0′N 1°29.0′W |
|---|
| UN/LOCODE | FRBAY |
|---|
| Harbor size | Medium |
|---|
| Harbor type | River natural harbor |
|---|
| Shelter | Excellent |
|---|
| Channel depth | 5 m |
|---|
| Anchorage depth | 23 m |
|---|
| Tide range | 3 m |
|---|
| Pilotage | Compulsory |
|---|
| Time zone | Europe/Paris |
|---|
Facilities & services (NGA World Port Index)| Tugs | Assistance available |
|---|
| Supplies | Fuel oil, diesel, water, provisions |
|---|
| Repairs | Limited |
|---|
| Medical facilities | Available |
|---|
10-day marine forecast — Bayonne
| Date | Wind | Gusts | Waves |
|---|
| NNE 6–8 kn | 12 kn | 1.6–2.7 m |
|---|
| E 4–8 kn | 11 kn | 1.9–2.7 m |
|---|
| NNW 3–8 kn | 12 kn | 1.6–1.7 m |
|---|
| NNW 3–5 kn | 7 kn | 1.6–1.7 m |
|---|
| NW 4–9 kn | 12 kn | 1.1–1.6 m |
|---|
| WNW 4–7 kn | 9 kn | 1.0–1.1 m |
|---|
| N 4–9 kn | 11 kn | 1.3–1.4 m |
|---|
| WNW 12–12 kn | 16 kn | 1.2–1.2 m |
|---|
| ENE 4–4 kn | 8 kn | 2.5–2.5 m |
|---|
| ENE 11–11 kn | 16 kn | 1.5–1.5 m |
|---|
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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 12 kn on Sep 25. The highest modeled significant wave height is 2.7 m on Sep 18. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Bayonne right now?
As of the ECMWF IFS run 2026-09-18 12z: NNE wind 6–8 kn, waves 1.6–2.7 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 Bayonne?
Bayonne is classed as a medium harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Bayonne?
Per the NGA World Port Index, the entrance channel carries about 5 m and anchorage depths run about 23 m. Verify against current official charts before entry.
What restricts entry to Bayonne?
Entry is affected by tidal windows. Check the live forecast on this page and official notices before approach.