Osaka to Nagasaki — sea route & marine weather
The sea route from Osaka (JPOSA) to Nagasaki (JPNGS) is about 439 nm — about 44 hours at 10 kn. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 439 nm |
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| Passage time at 10 kn | about 44 hours |
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| Great-circle distance | 303 nm |
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| Osaka | 34°39.0′N 135°26.0′E |
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| Nagasaki | 32°43.0′N 129°51.0′E |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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Marine forecast
No forecast frames are loaded right now. The live chart below shows conditions as soon as the next model run is ingested.
Frequently asked
How far is it from Osaka to Nagasaki by sea?
The water route is 439 nm (813 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Nagasaki to Osaka.
How long does the passage from Osaka to Nagasaki take?
about 44 hours 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.