Brooklyn/New York to Ireland Island — sea route & marine weather
The sea route from Brooklyn/New York (USBOY) to Ireland Island (BMFPT) is about 684 nm — about 3 days at 10 kn. Along the route today (Aug 3): WSW wind 7–25 kn, waves 0.9–2.9 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 684 nm |
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| Passage time at 10 kn | about 3 days |
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| Great-circle distance | 668 nm |
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| Brooklyn/New York | 40°40.0′N 74°1.0′W |
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| Ireland Island | 32°19.0′N 64°50.0′W |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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10-day marine forecast — along the route
| Date | Wind | Gusts | Waves |
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| WSW 7–25 kn | 32 kn | 0.9–2.9 m |
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| WNW 2–19 kn | 25 kn | 0.7–2.5 m |
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| S 0–11 kn | 13 kn | 0.5–1.3 m |
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| S 5–13 kn | 20 kn | 0.4–1.0 m |
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| WSW 4–15 kn | 20 kn | 0.5–1.1 m |
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| WSW 3–16 kn | 20 kn | 0.4–1.3 m |
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| W 5–18 kn | 23 kn | 0.5–1.4 m |
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| WNW 4–11 kn | 16 kn | 0.3–0.8 m |
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| W 7–13 kn | 20 kn | 0.6–0.9 m |
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| WNW 4–16 kn | 20 kn | 0.3–1.0 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 far is it from Brooklyn/New York to Ireland Island by sea?
The water route is 684 nm (1,266 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Ireland Island to Brooklyn/New York.
How long does the passage from Brooklyn/New York to Ireland Island take?
about 3 days at a 10 kn cruise. Scale by your own speed: at half the speed it takes about twice as long. The planner on this page recalculates for your vessel and live weather.
What is the weather between Brooklyn/New York and Ireland Island today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: WSW wind 7–25 kn, waves 0.9–2.9 m. The day-by-day table on this page covers the next 10 days.