New Orleans marine weather forecast
New Orleans (USMSY) is a port in United States at 29°57.0′N 90°3.0′W. Today (Sep 16): E wind 13–14 kn, from the NOAA GFS run 2026-09-16 18z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 29°57.0′N 90°3.0′W |
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| UN/LOCODE | USMSY |
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| Harbor size | Large |
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| Harbor type | River natural harbor |
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| Shelter | Excellent |
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| Channel depth | 11 m |
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| Anchorage depth | 23 m |
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| Tide range | 0 m |
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| Pilotage | Compulsory |
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| Time zone | America/Chicago |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Fuel oil, diesel, water, provisions |
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| Repairs | Major (hull, machinery, electrical) |
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| Medical facilities | Available |
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10-day marine forecast — New Orleans
| Date | Wind | Gusts | Waves |
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| E 13–14 kn | 17 kn | — |
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| E 6–13 kn | 20 kn | — |
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| E 3–8 kn | 13 kn | — |
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| E 2–5 kn | 6 kn | — |
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| ESE 5–6 kn | 7 kn | — |
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| ENE 7–7 kn | 9 kn | — |
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| ENE 10–10 kn | 10 kn | — |
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| E 11–11 kn | 11 kn | — |
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| ENE 9–9 kn | 13 kn | — |
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| ENE 13–13 kn | 18 kn | — |
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Forecast from the NOAA GFS 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 14 kn on Sep 16. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at New Orleans right now?
As of the NOAA GFS run 2026-09-16 18z: E wind 13–14 kn. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at New Orleans?
New Orleans is classed as a large harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to New Orleans?
Per the NGA World Port Index, the entrance channel carries about 11 m and anchorage depths run about 23 m. Verify against current official charts before entry.
What restricts entry to New Orleans?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.