Wonsan marine weather forecast
Wonsan (KPWON) is a port in North Korea at 39°10.0′N 127°27.0′E. Today (Sep 16): SSE wind 7–13 kn, waves 0.4–0.5 m, from the ECMWF IFS run 2026-09-16 12z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 39°10.0′N 127°27.0′E |
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| UN/LOCODE | KPWON |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Good |
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| Channel depth | 11 m |
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| Anchorage depth | 6 m |
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| Tide range | 0 m |
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| Time zone | Asia/Pyongyang |
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Facilities & services (NGA World Port Index)| Supplies | Water |
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| Repairs | Limited |
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| Medical facilities | Available |
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10-day marine forecast — Wonsan
| Date | Wind | Gusts | Waves |
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| SSE 7–13 kn | 16 kn | 0.4–0.5 m |
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| SE 5–11 kn | 14 kn | 0.3–0.7 m |
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| ENE 12–13 kn | 17 kn | 0.9–1.2 m |
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| NE 7–15 kn | 20 kn | 1.0–1.4 m |
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| SE 2–11 kn | 14 kn | 0.6–0.9 m |
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| E 5–10 kn | 12 kn | 0.5–0.9 m |
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| SSE 3–15 kn | 18 kn | 0.8–0.8 m |
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| W 11–11 kn | 14 kn | 0.6–0.6 m |
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| SE 12–12 kn | 18 kn | 1.4–1.4 m |
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| SSE 8–8 kn | 12 kn | 0.5–0.5 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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 15 kn on Sep 19. The highest modeled significant wave height is 1.4 m on Sep 19. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Wonsan right now?
As of the ECMWF IFS run 2026-09-16 12z: SSE wind 7–13 kn, waves 0.4–0.5 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Wonsan?
Wonsan is classed as a small harbor (coastal natural harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Wonsan?
Per the NGA World Port Index, the entrance channel carries about 11 m and anchorage depths run about 6 m. Verify against current official charts before entry.
What restricts entry to Wonsan?
Entry is affected by ice. Check the live forecast on this page and official notices before approach.