Cobh marine weather forecast
Cobh (IECOB) is a port in Ireland at 51°51.0′N 8°18.0′W. Today (Sep 17): W wind 7–13 kn, waves 2.7–4.3 m, from the NOAA GFS run 2026-09-17 06z. 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°51.0′N 8°18.0′W |
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| UN/LOCODE | IECOB |
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| Harbor size | Medium |
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| Harbor type | River natural harbor |
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| Shelter | Excellent |
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| Channel depth | 11 m |
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| Anchorage depth | 17 m |
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| Tide range | 4 m |
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| Pilotage | Compulsory |
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| Time zone | Europe/Dublin |
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Facilities & services (NGA World Port Index)| Cargo handling | Ro-Ro, Solid bulk, Liquid bulk |
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| Tugs | Assistance and salvage available |
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| Supplies | Fuel oil, diesel, water, provisions |
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| Repairs | Major (hull, machinery, electrical) |
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| Medical facilities | Available |
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10-day marine forecast — Cobh
| Date | Wind | Gusts | Waves |
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| W 7–13 kn | 24 kn | 2.7–4.3 m |
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| SW 5–12 kn | 31 kn | 3.5–4.5 m |
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| WSW 8–10 kn | 24 kn | 2.9–3.3 m |
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| SSW 3–4 kn | 12 kn | 2.7–3.0 m |
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| SSW 3–3 kn | 6 kn | 1.6–2.3 m |
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| S 3–3 kn | 3 kn | 1.5–1.7 m |
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| WNW 5–5 kn | 11 kn | 2.7–2.7 m |
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| SE 5–5 kn | 14 kn | 2.0–2.0 m |
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| SSE 8–8 kn | 21 kn | 2.4–2.4 m |
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| SW 2–2 kn | 2 kn | 2.8–2.8 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 13 kn on Sep 17. The highest modeled significant wave height is 4.5 m on Sep 18. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Cobh right now?
As of the NOAA GFS run 2026-09-17 06z: W wind 7–13 kn, waves 2.7–4.3 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 Cobh?
Cobh is classed as a medium harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Cobh?
Per the NGA World Port Index, the entrance channel carries about 11 m and anchorage depths run about 17 m. Verify against current official charts before entry.
What restricts entry to Cobh?
Entry is affected by tidal windows, vessel traffic service participation. Check the live forecast on this page and official notices before approach.