Matsu-Shima (JPMTS) — marine weather & port guide
Matsu-Shima is a port in Japan at 32°56.0′N 129°36.0′E. Today (Aug 3): SE wind 4–4 kn, waves 0.6–0.6 m, from the ECMWF IFS run 2026-08-03 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 | 32°56.0′N 129°36.0′E |
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| UN/LOCODE | JPMTS |
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| Harbor size | Very small |
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| Harbor type | Open roadstead |
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| Shelter | Poor |
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| Anchorage depth | 9 m |
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| Tide range | 3 m |
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| Pilotage | Compulsory |
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| Time zone | Asia/Tokyo |
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10-day marine forecast — Matsu-Shima
| Date | Wind | Gusts | Waves |
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| SE 4–4 kn | 9 kn | 0.6–0.6 m |
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| E 2–5 kn | 15 kn | 0.6–0.8 m |
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| ENE 3–9 kn | 19 kn | 0.7–1.1 m |
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| ENE 9–13 kn | 32 kn | 1.4–2.5 m |
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| E 11–15 kn | 36 kn | 3.1–4.3 m |
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| ESE 11–13 kn | 17 kn | 4.0–4.3 m |
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| ESE 11–11 kn | 13 kn | 3.6–4.0 m |
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| ESE 10–10 kn | 23 kn | 2.8–2.8 m |
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| ESE 5–5 kn | 12 kn | 2.9–2.9 m |
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| ESE 4–4 kn | 18 kn | 2.1–2.1 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 is the weather at Matsu-Shima right now?
As of the ECMWF IFS run 2026-08-03 12z: SE wind 4–4 kn, waves 0.6–0.6 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 Matsu-Shima?
Matsu-Shima is classed as a very small harbor (open roadstead), with poor shelter in the NGA World Port Index.
How deep is the approach to Matsu-Shima?
Per the NGA World Port Index, anchorage depths run about 9 m. Verify against current official charts before entry.