Seward (USSWD) — marine weather & port guide
Seward is a port in United States at 60°6.0′N 149°26.0′W. Today (Aug 3): S wind 11–13 kn, waves 0.9–1.2 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 | 60°6.0′N 149°26.0′W |
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| UN/LOCODE | USSWD |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Poor |
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| Channel depth | 23 m |
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| Anchorage depth | 23 m |
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| Tide range | 3 m |
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| Time zone | America/Anchorage |
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10-day marine forecast — Seward
| Date | Wind | Gusts | Waves |
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| S 11–13 kn | 18 kn | 0.9–1.2 m |
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| SSE 11–15 kn | 18 kn | 1.2–1.4 m |
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| SSE 8–13 kn | 17 kn | 1.2–1.5 m |
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| SW 8–9 kn | 11 kn | 1.0–1.1 m |
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| WSW 10–15 kn | 18 kn | 1.0–1.1 m |
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| WSW 12–14 kn | 17 kn | 1.1–1.1 m |
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| W 6–11 kn | 14 kn | 0.8–1.0 m |
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| WSW 11–11 kn | 15 kn | 0.7–0.7 m |
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| WSW 6–6 kn | 14 kn | 0.8–0.8 m |
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| WNW 3–3 kn | 5 kn | 0.7–0.7 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 Seward right now?
As of the ECMWF IFS run 2026-08-03 12z: S wind 11–13 kn, waves 0.9–1.2 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 Seward?
Seward is classed as a small harbor (coastal natural harbor), with poor shelter in the NGA World Port Index.
How deep is the approach to Seward?
Per the NGA World Port Index, the entrance channel carries about 23 m and anchorage depths run about 23 m. Verify against current official charts before entry.