Osaka to Higashi-Harima — sea route & marine weather
The sea route from Osaka (JPOSA) to Higashi-Harima (JPHHR) is about 30 nm — about 3 hours at 10 kn. Along the route today (Nov 1): SSE wind 4–13 kn, waves 0.2–0.4 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 30 nm |
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| Passage time at 10 kn | about 3 hours |
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| Great-circle distance | 30 nm |
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| Osaka | 34°39.0′N 135°26.0′E |
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| Higashi-Harima | 34°42.0′N 134°50.0′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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| SSE 4–13 kn | 18 kn | 0.2–0.4 m |
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| WNW 6–16 kn | 26 kn | 0.4–0.9 m |
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| NNW 6–10 kn | 17 kn | 0.3–0.4 m |
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| ENE 7–14 kn | 21 kn | 0.3–0.7 m |
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| SE 5–16 kn | 20 kn | 0.4–0.8 m |
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| NW 13–19 kn | 23 kn | 0.6–0.9 m |
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| NNW 15–15 kn | 19 kn | 0.7–0.7 m |
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| NNE 9–9 kn | 17 kn | 0.3–0.3 m |
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| WNW 16–16 kn | 24 kn | 0.6–0.6 m |
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| N 7–7 kn | 21 kn | 0.3–0.3 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 Osaka to Higashi-Harima by sea?
The water route is 30 nm (56 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Higashi-Harima to Osaka.
How long does the passage from Osaka to Higashi-Harima take?
about 3 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.
What is the weather between Osaka and Higashi-Harima today?
Along the route today, per the ECMWF IFS run 2026-11-01 00z: SSE wind 4–13 kn, waves 0.2–0.4 m. The day-by-day table on this page covers the next 10 days.