Halifax to Sept-Iles — sea route & marine weather
The sea route from Halifax (CAHAL) to Sept-Iles (CASEI) is about 620 nm — about 3 days at 10 kn. Along the route today (Aug 3): S wind 4–21 kn, waves 0.6–1.2 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 620 nm |
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| Passage time at 10 kn | about 3 days |
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| Great-circle distance | 352 nm |
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| Halifax | 44°39.0′N 63°35.0′W |
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| Sept-Iles | 50°12.0′N 66°23.0′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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| S 4–21 kn | 28 kn | 0.6–1.2 m |
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| SSW 2–29 kn | 43 kn | 0.9–2.8 m |
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| W 6–28 kn | 36 kn | 0.8–2.9 m |
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| W 2–12 kn | 17 kn | 0.2–2.1 m |
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| W 1–7 kn | 14 kn | 0.1–1.1 m |
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| SW 1–6 kn | 8 kn | 0.1–0.9 m |
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| SSE 0–11 kn | 14 kn | 0.1–1.0 m |
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| NW 1–10 kn | 13 kn | 0.4–1.2 m |
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| SSW 5–14 kn | 21 kn | 0.3–1.4 m |
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| W 4–14 kn | 19 kn | 0.5–1.3 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 Halifax to Sept-Iles by sea?
The water route is 620 nm (1,148 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Sept-Iles to Halifax.
How long does the passage from Halifax to Sept-Iles 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 Halifax and Sept-Iles today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: S wind 4–21 kn, waves 0.6–1.2 m. The day-by-day table on this page covers the next 10 days.