Bahía Blanca (ARBHI) — marine weather & port guide
Bahía Blanca is a port in Argentina at 38°47.0′S 62°16.0′W. Today (Aug 3): WNW wind 6–10 kn, waves 1.6–1.7 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 | 38°47.0′S 62°16.0′W |
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| UN/LOCODE | ARBHI |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Good |
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| Channel depth | 9 m |
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| Anchorage depth | 9 m |
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| Tide range | 2 m |
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| Pilotage | Compulsory |
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| Time zone | America/Argentina/Buenos_Aires |
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10-day marine forecast — Bahía Blanca
| Date | Wind | Gusts | Waves |
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| WNW 6–10 kn | 14 kn | 1.6–1.7 m |
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| NNW 5–9 kn | 16 kn | 1.1–1.5 m |
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| W 7–11 kn | 19 kn | 1.0–1.2 m |
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| SSE 1–9 kn | 14 kn | 0.8–0.9 m |
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| WNW 5–21 kn | 27 kn | 0.8–1.3 m |
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| WSW 12–14 kn | 18 kn | 2.0–2.3 m |
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| SW 12–16 kn | 20 kn | 2.5–3.3 m |
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| WSW 5–5 kn | 10 kn | 2.6–2.6 m |
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| ENE 6–6 kn | 9 kn | 1.6–1.6 m |
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| NE 6–6 kn | 9 kn | 1.5–1.5 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 Bahía Blanca right now?
As of the ECMWF IFS run 2026-08-03 12z: WNW wind 6–10 kn, waves 1.6–1.7 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 Bahía Blanca?
Bahía Blanca is classed as a very small harbor (coastal natural harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Bahía Blanca?
Per the NGA World Port Index, the entrance channel carries about 9 m and anchorage depths run about 9 m. Verify against current official charts before entry.
What restricts entry to Bahía Blanca?
Entry is affected by ice, tidal windows, heavy swell, overhead clearance limits. Check the live forecast on this page and official notices before approach.