Keppel to Belawan — sea route & marine weather
The sea route from Keppel (SGKEP) to Belawan (IDBLW) is about 378 nm — about 38 hours at 10 kn. Along the route today (Aug 3): SSE wind 1–8 kn, waves 0.1–0.7 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 378 nm |
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| Passage time at 10 kn | about 38 hours |
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| Great-circle distance | 344 nm |
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| Keppel | 1°16.0′N 103°50.0′E |
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| Belawan | 3°47.0′N 98°41.0′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 1–8 kn | 20 kn | 0.1–0.7 m |
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| SSE 1–9 kn | 19 kn | 0.1–0.9 m |
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| SSE 0–9 kn | 21 kn | 0.1–0.8 m |
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| SSE 2–8 kn | 18 kn | 0.2–0.8 m |
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| SSE 1–11 kn | 21 kn | 0.1–0.8 m |
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| SSE 1–11 kn | 14 kn | 0.2–0.9 m |
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| SSE 1–9 kn | 11 kn | 0.2–0.9 m |
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| SE 1–9 kn | 22 kn | 0.2–0.8 m |
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| SE 1–8 kn | 22 kn | 0.2–0.9 m |
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| SSE 1–10 kn | 24 kn | 0.2–0.9 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 Keppel to Belawan by sea?
The water route is 378 nm (700 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Belawan to Keppel.
How long does the passage from Keppel to Belawan take?
about 38 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 Keppel and Belawan today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: SSE wind 1–8 kn, waves 0.1–0.7 m. The day-by-day table on this page covers the next 10 days.