De Kastri marine weather forecast
De Kastri (RUDKA) is a port in Russia at 51°28.0′N 140°47.0′E. Today (Sep 15): WSW wind 9–12 kn, waves 0.1–0.4 m, from the ECMWF IFS run 2026-09-15 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 | 51°28.0′N 140°47.0′E |
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| UN/LOCODE | RUDKA |
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| Harbor size | Medium |
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| Harbor type | Coastal natural harbor |
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| Shelter | Poor |
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| Channel depth | 7 m |
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| Anchorage depth | 9 m |
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| Tide range | 2 m |
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| Pilotage | Compulsory |
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| Time zone | Asia/Sakhalin |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Fuel oil, water, provisions |
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| Repairs | Limited |
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| Medical facilities | Available |
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| Largest vessel | 150 m length overall, 25 m beam, 7 m draft |
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10-day marine forecast — De Kastri
| Date | Wind | Gusts | Waves |
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| WSW 9–12 kn | 16 kn | 0.1–0.4 m |
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| NW 8–13 kn | 20 kn | 0.3–0.6 m |
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| S 9–18 kn | 27 kn | 0.3–0.8 m |
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| S 16–19 kn | 28 kn | 0.6–0.8 m |
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| S 11–17 kn | 24 kn | 0.4–0.6 m |
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| SSE 5–8 kn | 10 kn | 0.1–0.2 m |
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| NNW 14–19 kn | 24 kn | 0.2–1.0 m |
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| NW 21–21 kn | 37 kn | 1.1–1.1 m |
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| NW 12–12 kn | 20 kn | 0.6–0.6 m |
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| NW 12–12 kn | 19 kn | 0.5–0.5 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 21 kn on Sep 22. The highest modeled significant wave height is 1.1 m on Sep 22. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at De Kastri right now?
As of the ECMWF IFS run 2026-09-15 12z: WSW wind 9–12 kn, waves 0.1–0.4 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 De Kastri?
De Kastri is classed as a medium harbor (coastal natural harbor), with poor shelter in the NGA World Port Index.
How deep is the approach to De Kastri?
Per the NGA World Port Index, the entrance channel carries about 7 m and anchorage depths run about 9 m. Verify against current official charts before entry.
What restricts entry to De Kastri?
Entry is affected by ice. Check the live forecast on this page and official notices before approach.
What is the largest vessel De Kastri can take?
The NGA World Port Index lists the maximum vessel at about 150 m length overall, 25 m beam, 7 m draft. Confirm current limits with the port authority before arrival.