Maizuru Ko marine weather forecast
Maizuru Ko (JPMAI) is a port in Japan at 35°31.0′N 135°20.0′E. Today (Nov 2): NNW wind 10–13 kn, waves 0.4–0.5 m, from the NOAA GFS run 2026-11-02 18z. 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°31.0′N 135°20.0′E |
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| UN/LOCODE | JPMAI |
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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 | 9 m |
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| Anchorage depth | 19 m |
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| Tide range | 0 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, diesel, water, provisions |
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| Repairs | Moderate |
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| Medical facilities | Available |
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10-day marine forecast — Maizuru Ko
| Date | Wind | Gusts | Waves |
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| NNW 10–13 kn | 16 kn | 0.4–0.5 m |
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| N 8–13 kn | 15 kn | 0.3–0.5 m |
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| NE 10–14 kn | 15 kn | 0.4–0.8 m |
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| NNW 1–22 kn | 25 kn | 0.4–0.6 m |
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| WNW 16–17 kn | 20 kn | 0.5–0.7 m |
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| N 10–10 kn | 13 kn | 0.4–0.8 m |
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| NW 7–7 kn | 9 kn | 0.2–0.4 m |
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| NNW 17–17 kn | 25 kn | 0.3–0.3 m |
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| N 5–5 kn | 4 kn | 0.5–0.5 m |
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| NNW 5–5 kn | 4 kn | 0.4–0.4 m |
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Forecast from the NOAA GFS 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 22 kn on Nov 5. The highest modeled significant wave height is 0.8 m on Nov 4. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Maizuru Ko right now?
As of the NOAA GFS run 2026-11-02 18z: NNW wind 10–13 kn, waves 0.4–0.5 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 Maizuru Ko?
Maizuru Ko is classed as a small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Maizuru Ko?
Per the NGA World Port Index, the entrance channel carries about 9 m and anchorage depths run about 19 m. Verify against current official charts before entry.
What restricts entry to Maizuru Ko?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.