Masan marine weather forecast
Masan (KRMAS) is a port in South Korea at 35°12.0′N 128°34.0′E. Today (Nov 3): NE wind 7–16 kn, waves 0.4–0.9 m, from the ECMWF IFS run 2026-11-03 00z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 35°12.0′N 128°34.0′E |
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| UN/LOCODE | KRMAS |
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| Harbor size | Medium |
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| Harbor type | Coastal natural harbor |
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| Shelter | Good |
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| Channel depth | 9 m |
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| Anchorage depth | 13 m |
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| Tide range | 2 m |
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| Pilotage | Compulsory |
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| Time zone | Asia/Seoul |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Fuel oil, water, provisions |
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| Repairs | Limited |
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| Medical facilities | Available |
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| Largest vessel | 12 m draft |
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10-day marine forecast — Masan
| Date | Wind | Gusts | Waves |
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| NE 7–16 kn | 19 kn | 0.4–0.9 m |
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| ENE 11–16 kn | 21 kn | 0.7–1.0 m |
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| NNW 7–19 kn | 26 kn | 0.8–1.6 m |
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| NNW 10–15 kn | 23 kn | 0.7–1.2 m |
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| N 9–17 kn | 21 kn | 0.6–1.0 m |
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| NNE 12–14 kn | 17 kn | 0.6–0.8 m |
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| NNE 14–14 kn | 17 kn | 0.6–0.6 m |
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| NNW 12–12 kn | 24 kn | 0.8–0.8 m |
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| NNE 7–7 kn | 20 kn | 0.8–0.8 m |
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| NE 9–9 kn | 17 kn | 0.6–0.6 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 19 kn on Nov 5. The highest modeled significant wave height is 1.6 m on Nov 5. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Masan right now?
As of the ECMWF IFS run 2026-11-03 00z: NE wind 7–16 kn, waves 0.4–0.9 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 Masan?
Masan is classed as a medium harbor (coastal natural harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Masan?
Per the NGA World Port Index, the entrance channel carries about 9 m and anchorage depths run about 13 m. Verify against current official charts before entry.
What restricts entry to Masan?
Entry is affected by tidal windows, heavy swell, overhead clearance limits. Check the live forecast on this page and official notices before approach.
What is the largest vessel Masan can take?
The NGA World Port Index lists the maximum vessel at about 12 m draft. Confirm current limits with the port authority before arrival.