Kawasaki Ko to Moji/Kitakyushu — sea route & marine weather
The sea route from Kawasaki Ko (JPKWS) to Moji/Kitakyushu (JPMOJ) is about 845 nm — about 4 days at 10 kn. Along the route today (Sep 13): wind 4–14 kn, waves 0.3–1.5 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 845 nm |
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| Passage time at 10 kn | about 4 days |
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| Great-circle distance | 445 nm |
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| Kawasaki Ko | 35°30.0′N 139°46.0′E |
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| Moji/Kitakyushu | 33°57.0′N 130°58.0′E |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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10-day marine forecast — along the route
| Date | Wind | Gusts | Waves |
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| 4–14 kn | 19 kn | 0.3–1.5 m |
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| 2–17 kn | 21 kn | 0.3–1.5 m |
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| 1–18 kn | 24 kn | 0.9–1.6 m |
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| NE 4–26 kn | 36 kn | 1.2–2.3 m |
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| ENE 9–33 kn | 42 kn | 1.2–3.4 m |
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| NE 9–32 kn | 40 kn | 1.0–4.5 m |
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| NE 12–28 kn | 36 kn | 1.0–5.3 m |
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| ENE 7–52 kn | 70 kn | 2.2–8.6 m |
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| 11–36 kn | 91 kn | 1.8–6.5 m |
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| NNE 12–53 kn | 73 kn | 2.3–5.0 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 far is it from Kawasaki Ko to Moji/Kitakyushu by sea?
The water route is 845 nm (1,564 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Moji/Kitakyushu to Kawasaki Ko.
How long does the passage from Kawasaki Ko to Moji/Kitakyushu take?
about 4 days at a 10 kn cruise. Scale by your own speed: at half the speed it takes about twice as long. The planner on this page recalculates for your vessel and live weather.
What is the weather between Kawasaki Ko and Moji/Kitakyushu today?
Along the route today, per the ECMWF IFS run 2026-09-13 12z: wind 4–14 kn, waves 0.3–1.5 m. The day-by-day table on this page covers the next 10 days.