Uwajima Ko (JPUWA) — marine weather & port guide
Uwajima Ko is a port in Japan at 33°13.0′N 132°34.0′E. Today (Aug 3): ENE wind 14–16 kn, waves 1.9–2.4 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 | 33°13.0′N 132°34.0′E |
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| UN/LOCODE | JPUWA |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Poor |
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| Channel depth | 22 m |
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| Anchorage depth | 13 m |
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| Tide range | 2 m |
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| Time zone | Asia/Tokyo |
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10-day marine forecast — Uwajima Ko
| Date | Wind | Gusts | Waves |
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| ENE 14–16 kn | 23 kn | 1.9–2.4 m |
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| ENE 16–19 kn | 25 kn | 2.6–3.8 m |
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| ENE 23–26 kn | 34 kn | 4.2–5.5 m |
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| E 25–29 kn | 38 kn | 5.2–5.7 m |
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| ESE 18–25 kn | 33 kn | 3.9–4.8 m |
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| ESE 16–20 kn | 26 kn | 2.9–3.4 m |
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| ESE 9–13 kn | 16 kn | 2.3–2.5 m |
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| SE 11–11 kn | 14 kn | 2.2–2.2 m |
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| SSE 7–7 kn | 16 kn | 2.2–2.2 m |
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| ESE 10–10 kn | 15 kn | 1.6–1.6 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.
Frequently asked
How is the weather at Uwajima Ko right now?
As of the ECMWF IFS run 2026-08-03 12z: ENE wind 14–16 kn, waves 1.9–2.4 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 Uwajima Ko?
Uwajima Ko is classed as a very small harbor (coastal natural harbor), with poor shelter in the NGA World Port Index.
How deep is the approach to Uwajima Ko?
Per the NGA World Port Index, the entrance channel carries about 22 m and anchorage depths run about 13 m. Verify against current official charts before entry.
What restricts entry to Uwajima Ko?
Entry is affected by tidal windows, heavy swell. Check the live forecast on this page and official notices before approach.