Kushiro Ko (JPKUH) — marine weather & port guide
Kushiro Ko is a port in Japan at 42°59.0′N 144°22.0′E. Today (Aug 3): SSW wind 6–7 kn, waves 1.8–2.1 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 | 42°59.0′N 144°22.0′E |
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| UN/LOCODE | JPKUH |
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| Harbor size | Medium |
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| Harbor type | Coastal breakwater 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 | Advisable |
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| Time zone | Asia/Tokyo |
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10-day marine forecast — Kushiro Ko
| Date | Wind | Gusts | Waves |
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| SSW 6–7 kn | 16 kn | 1.8–2.1 m |
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| SSW 7–8 kn | 21 kn | 2.1–2.1 m |
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| SSW 7–8 kn | 21 kn | 1.8–2.0 m |
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| SSW 5–7 kn | 17 kn | 1.8–1.8 m |
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| SSW 7–7 kn | 18 kn | 1.7–1.8 m |
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| N 6–9 kn | 11 kn | 1.7–1.8 m |
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| NNE 5–6 kn | 7 kn | 1.9–2.2 m |
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| NNE 5–5 kn | 18 kn | 2.4–2.4 m |
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| NE 6–6 kn | 27 kn | 4.6–4.6 m |
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| S 7–7 kn | 22 kn | 1.7–1.7 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 Kushiro Ko right now?
As of the ECMWF IFS run 2026-08-03 12z: SSW wind 6–7 kn, waves 1.8–2.1 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 Kushiro Ko?
Kushiro Ko is classed as a medium harbor (coastal breakwater harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Kushiro Ko?
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 Kushiro Ko?
Entry is affected by ice, overhead clearance limits. Check the live forecast on this page and official notices before approach.