Kawaihae marine weather forecast
Kawaihae (USKWH) is a port in United States at 20°2.0′N 155°50.0′W. Today (Sep 15): ENE wind 8–14 kn, waves 1.2–1.3 m, from the ECMWF IFS run 2026-09-15 00z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 20°2.0′N 155°50.0′W |
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| UN/LOCODE | USKWH |
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| Harbor size | Small |
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| Harbor type | Coastal breakwater harbor |
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| Shelter | Fair |
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| Channel depth | 11 m |
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| Anchorage depth | 14 m |
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| Tide range | 0 m |
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| Pilotage | Compulsory |
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| Time zone | Pacific/Honolulu |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Fuel oil, water |
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| Repairs | Limited |
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| Medical facilities | Available |
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10-day marine forecast — Kawaihae
| Date | Wind | Gusts | Waves |
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| ENE 8–14 kn | 18 kn | 1.2–1.3 m |
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| ENE 12–13 kn | 18 kn | 1.4–1.5 m |
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| ENE 16–19 kn | 24 kn | 1.7–2.2 m |
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| E 15–18 kn | 24 kn | 2.0–2.2 m |
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| E 17–19 kn | 24 kn | 2.3–2.3 m |
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| E 16–17 kn | 21 kn | 2.1–2.2 m |
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| ENE 16–16 kn | 20 kn | 2.0–2.0 m |
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| E 15–15 kn | 24 kn | 2.1–2.1 m |
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| E 21–21 kn | 27 kn | 2.9–2.9 m |
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| E 19–19 kn | 26 kn | 2.9–2.9 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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 21 kn on Sep 23. The highest modeled significant wave height is 2.9 m on Sep 23. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Kawaihae right now?
As of the ECMWF IFS run 2026-09-15 00z: ENE wind 8–14 kn, waves 1.2–1.3 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 Kawaihae?
Kawaihae is classed as a small harbor (coastal breakwater harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Kawaihae?
Per the NGA World Port Index, the entrance channel carries about 11 m and anchorage depths run about 14 m. Verify against current official charts before entry.
What restricts entry to Kawaihae?
Entry is affected by tidal windows, heavy swell. Check the live forecast on this page and official notices before approach.