Sendai-Shiogama (JPSGM) — marine weather & port guide
Sendai-Shiogama is a port in Japan at 38°19.0′N 141°2.0′E. Today (Aug 3): NNE wind 3–6 kn, waves 2.3–2.5 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 | 38°19.0′N 141°2.0′E |
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| UN/LOCODE | JPSGM |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Fair |
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| Channel depth | 6 m |
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| Anchorage depth | 11 m |
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| Tide range | 1 m |
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| Pilotage | Advisable |
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| Time zone | Asia/Tokyo |
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10-day marine forecast — Sendai-Shiogama
| Date | Wind | Gusts | Waves |
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| NNE 3–6 kn | 7 kn | 2.3–2.5 m |
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| ENE 2–6 kn | 12 kn | 2.6–2.8 m |
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| WSW 2–3 kn | 8 kn | 2.1–2.5 m |
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| SW 2–5 kn | 9 kn | 1.9–2.0 m |
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| SW 3–7 kn | 12 kn | 1.6–1.8 m |
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| SSE 2–6 kn | 8 kn | 1.6–1.6 m |
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| NE 8–10 kn | 12 kn | 1.8–2.1 m |
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| N 8–8 kn | 24 kn | 2.6–2.6 m |
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| SW 6–6 kn | 19 kn | 1.8–1.8 m |
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| SW 2–2 kn | 12 kn | 1.3–1.3 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 Sendai-Shiogama right now?
As of the ECMWF IFS run 2026-08-03 12z: NNE wind 3–6 kn, waves 2.3–2.5 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 Sendai-Shiogama?
Sendai-Shiogama is classed as a small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Sendai-Shiogama?
Per the NGA World Port Index, the entrance channel carries about 6 m and anchorage depths run about 11 m. Verify against current official charts before entry.
What restricts entry to Sendai-Shiogama?
Entry is affected by heavy swell. Check the live forecast on this page and official notices before approach.