Colonia — marine weather & port guide
Colonia is a port in Micronesia at 9°31.0′N 138°8.0′E. Today (Aug 3): WSW wind 17–21 kn, waves 1.9–2.2 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 | 9°31.0′N 138°8.0′E |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Good |
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| Channel depth | 23 m |
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| Anchorage depth | 23 m |
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| Tide range | 1 m |
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| Time zone | Pacific/Chuuk |
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10-day marine forecast — Colonia
| Date | Wind | Gusts | Waves |
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| WSW 17–21 kn | 27 kn | 1.9–2.2 m |
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| WSW 17–20 kn | 28 kn | 2.1–2.3 m |
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| WSW 18–20 kn | 26 kn | 2.3–2.4 m |
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| SW 17–21 kn | 27 kn | 2.4–2.7 m |
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| SW 18–20 kn | 26 kn | 2.7–2.8 m |
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| SW 17–21 kn | 26 kn | 2.5–2.8 m |
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| SW 16–17 kn | 22 kn | 2.3–2.4 m |
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| WSW 11–11 kn | 24 kn | 2.0–2.0 m |
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| SW 13–13 kn | 19 kn | 1.8–1.8 m |
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| WSW 15–15 kn | 22 kn | 1.7–1.7 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 Colonia right now?
As of the ECMWF IFS run 2026-08-03 12z: WSW wind 17–21 kn, waves 1.9–2.2 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 Colonia?
Colonia is classed as a very small harbor (coastal natural harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Colonia?
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.
What restricts entry to Colonia?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.