Eastern Part Of Niigata-Ko (JPNIH) — marine weather & port guide
Eastern Part Of Niigata-Ko is a port in Japan at 38°1.0′N 139°14.0′E. Today (Aug 3): ESE wind 20–24 kn, waves 1.2–1.4 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°1.0′N 139°14.0′E |
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| UN/LOCODE | JPNIH |
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| Harbor size | Small |
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| Harbor type | Coastal breakwater harbor |
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| Channel depth | 11 m |
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| Tide range | 0 m |
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| Time zone | Asia/Tokyo |
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10-day marine forecast — Eastern Part Of Niigata-Ko
| Date | Wind | Gusts | Waves |
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| ESE 20–24 kn | 34 kn | 1.2–1.4 m |
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| ESE 15–21 kn | 29 kn | 0.8–1.1 m |
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| E 5–14 kn | 21 kn | 0.3–0.7 m |
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| ENE 4–9 kn | 14 kn | 0.2–0.4 m |
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| NE 2–5 kn | 9 kn | 0.1–0.2 m |
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| NNW 7–15 kn | 18 kn | 0.2–0.7 m |
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| ENE 5–16 kn | 20 kn | 1.0–1.4 m |
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| ESE 10–10 kn | 20 kn | 0.9–0.9 m |
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| NW 5–5 kn | 14 kn | 0.7–0.7 m |
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| NNE 7–7 kn | 10 kn | 1.1–1.1 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 Eastern Part Of Niigata-Ko right now?
As of the ECMWF IFS run 2026-08-03 12z: ESE wind 20–24 kn, waves 1.2–1.4 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 Eastern Part Of Niigata-Ko?
Eastern Part Of Niigata-Ko is classed as a small harbor (coastal breakwater harbor) in the NGA World Port Index.
How deep is the approach to Eastern Part Of Niigata-Ko?
Per the NGA World Port Index, the entrance channel carries about 11 m. Verify against current official charts before entry.