Busan to Weihai Pt — sea route & marine weather
The sea route from Busan (KRPUS) to Weihai Pt (CNWEG) is about 670 nm — about 3 days at 10 kn. Along the route today (Aug 3): ENE wind 2–13 kn, waves 0.1–0.6 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 670 nm |
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| Passage time at 10 kn | about 3 days |
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| Great-circle distance | 366 nm |
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| Busan | 35°6.0′N 129°2.0′E |
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| Weihai Pt | 37°30.0′N 122°6.0′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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| ENE 2–13 kn | 15 kn | 0.1–0.6 m |
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| ENE 1–16 kn | 20 kn | 0.1–0.8 m |
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| ENE 1–17 kn | 22 kn | 0.1–1.1 m |
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| ENE 3–21 kn | 27 kn | 0.2–1.4 m |
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| ENE 4–20 kn | 26 kn | 0.3–2.3 m |
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| ENE 10–24 kn | 30 kn | 0.5–3.0 m |
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| ENE 14–23 kn | 28 kn | 0.6–3.4 m |
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| ENE 13–25 kn | 36 kn | 0.7–3.3 m |
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| ENE 12–25 kn | 35 kn | 0.7–3.1 m |
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| ENE 13–20 kn | 28 kn | 0.7–2.0 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 Busan to Weihai Pt by sea?
The water route is 670 nm (1,242 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Weihai Pt to Busan.
How long does the passage from Busan to Weihai Pt take?
about 3 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 Busan and Weihai Pt today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: ENE wind 2–13 kn, waves 0.1–0.6 m. The day-by-day table on this page covers the next 10 days.