Port Simpson (CAPSI) — marine weather & port guide
Port Simpson is a port in Canada at 54°34.0′N 130°26.0′W. Today (Aug 3): SE wind 0–6 kn, from the ECMWF IFS run 2026-08-03 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 | 54°34.0′N 130°26.0′W |
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| UN/LOCODE | CAPSI |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Excellent |
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| Channel depth | 16 m |
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| Anchorage depth | 23 m |
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| Tide range | 16 m |
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| Pilotage | Compulsory |
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| Time zone | America/Vancouver |
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10-day marine forecast — Port Simpson
| Date | Wind | Gusts | Waves |
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| SE 0–6 kn | 15 kn | — |
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| S 2–6 kn | 16 kn | — |
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| SSW 0–6 kn | 16 kn | — |
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| S 2–7 kn | 17 kn | — |
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| S 3–6 kn | 16 kn | — |
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| S 5–8 kn | 10 kn | — |
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| SE 2–5 kn | 7 kn | — |
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| SSE 1–1 kn | 5 kn | — |
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| ENE 3–3 kn | 6 kn | — |
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| ESE 1–1 kn | 6 kn | — |
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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 is the weather at Port Simpson right now?
As of the ECMWF IFS run 2026-08-03 12z: SE wind 0–6 kn. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Port Simpson?
Port Simpson is classed as a very small harbor (coastal natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Port Simpson?
Per the NGA World Port Index, the entrance channel carries about 16 m and anchorage depths run about 23 m. Verify against current official charts before entry.
What restricts entry to Port Simpson?
Entry is affected by tidal windows, heavy swell, overhead clearance limits. Check the live forecast on this page and official notices before approach.