Muturezima Ko marine weather forecast
Muturezima Ko (JPMTR) is a port in Japan at 33°58.0′N 130°52.0′E. Today (Sep 13): SW wind 4–7 kn, waves 0.3–0.4 m, from the ECMWF IFS run 2026-09-13 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 | 33°58.0′N 130°52.0′E |
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| UN/LOCODE | JPMTR |
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| Harbor size | Small |
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| Harbor type | Open roadstead |
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| Shelter | Poor |
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| Channel depth | 16 m |
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| Anchorage depth | 23 m |
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| Tide range | 7 m |
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| Pilotage | Advisable |
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| Time zone | Asia/Tokyo |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Fuel oil, water |
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10-day marine forecast — Muturezima Ko
| Date | Wind | Gusts | Waves |
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| SW 4–7 kn | 12 kn | 0.3–0.4 m |
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| N 5–13 kn | 18 kn | 0.3–0.9 m |
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| NE 13–18 kn | 24 kn | 0.9–1.6 m |
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| NE 19–22 kn | 30 kn | 1.7–2.1 m |
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| ENE 14–21 kn | 28 kn | 1.9–2.2 m |
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| ENE 15–16 kn | 20 kn | 1.5–1.7 m |
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| NE 16–23 kn | 28 kn | 1.5–2.3 m |
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| NE 23–23 kn | 32 kn | 2.3–2.3 m |
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| NE 32–32 kn | 44 kn | 3.4–3.4 m |
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| NNE 27–27 kn | 43 kn | 4.0–4.0 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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 32 kn on Sep 21. The highest modeled significant wave height is 4.0 m on Sep 22. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Muturezima Ko right now?
As of the ECMWF IFS run 2026-09-13 12z: SW wind 4–7 kn, waves 0.3–0.4 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 Muturezima Ko?
Muturezima Ko is classed as a small harbor (open roadstead), with poor shelter in the NGA World Port Index.
How deep is the approach to Muturezima Ko?
Per the NGA World Port Index, the entrance channel carries about 16 m and anchorage depths run about 23 m. Verify against current official charts before entry.