Seward marine weather forecast
Seward (USSWD) is a port in United States at 60°6.0′N 149°26.0′W. Today (Sep 13): W wind 3–5 kn, waves 1.2–1.4 m, from the NOAA GFS run 2026-09-13 06z. 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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Facilities & services (NGA World Port Index)| Supplies | Fuel oil, diesel, water, provisions |
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| Repairs | Limited |
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| Medical facilities | Available |
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10-day marine forecast — Seward
| Date | Wind | Gusts | Waves |
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| W 3–5 kn | 5 kn | 1.2–1.4 m |
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| W 5–6 kn | 6 kn | 1.0–1.1 m |
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| SW 8–14 kn | 19 kn | 1.1–1.6 m |
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| WSW 25–25 kn | 33 kn | 2.3–2.8 m |
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| NNE 3–3 kn | 4 kn | 1.1–2.0 m |
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| E 4–4 kn | 5 kn | 0.9–1.1 m |
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| NE 14–14 kn | 13 kn | 1.0–1.0 m |
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| ESE 23–23 kn | 27 kn | 2.7–2.7 m |
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| SSE 18–18 kn | 22 kn | 2.5–2.5 m |
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| NNE 5–5 kn | 5 kn | 2.1–2.1 m |
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Forecast from the NOAA GFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 25 kn on Sep 16. The highest modeled significant wave height is 2.8 m on Sep 16. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Seward right now?
As of the NOAA GFS run 2026-09-13 06z: W wind 3–5 kn, waves 1.2–1.4 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.