Port Heiden (USPTH) — marine weather & port guide
Port Heiden is a port in United States at 56°53.0′N 158°42.0′W. Today (Aug 3): SSW wind 13–20 kn, waves 1.0–2.1 m, 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 | 56°53.0′N 158°42.0′W |
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| UN/LOCODE | USPTH |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Fair |
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| Tide range | 0 m |
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| Time zone | America/Anchorage |
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10-day marine forecast — Port Heiden
| Date | Wind | Gusts | Waves |
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| SSW 13–20 kn | 27 kn | 1.0–2.1 m |
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| SW 15–17 kn | 23 kn | 1.9–2.0 m |
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| SSW 7–14 kn | 18 kn | 1.6–2.0 m |
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| SW 2–7 kn | 9 kn | 1.0–1.5 m |
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| NE 1–5 kn | 7 kn | 0.6–0.9 m |
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| NE 3–7 kn | 9 kn | 0.5–0.5 m |
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| SSE 1–3 kn | 3 kn | 0.4–0.4 m |
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| NNE 8–8 kn | 11 kn | 0.4–0.4 m |
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| NW 3–3 kn | 10 kn | 0.4–0.4 m |
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| NE 8–8 kn | 11 kn | 0.3–0.3 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 is the weather at Port Heiden right now?
As of the ECMWF IFS run 2026-08-03 12z: SSW wind 13–20 kn, waves 1.0–2.1 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 Port Heiden?
Port Heiden is classed as a very small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
What restricts entry to Port Heiden?
Entry is affected by ice. Check the live forecast on this page and official notices before approach.