Astakós (GRAST) — marine weather & port guide
Astakós is a port in Greece at 38°29.0′N 21°6.0′E. Today (Aug 3): WNW wind 6–11 kn, waves 0.1–0.3 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 | 38°29.0′N 21°6.0′E |
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| UN/LOCODE | GRAST |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Fair |
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| Anchorage depth | 17 m |
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| Tide range | 0 m |
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| Time zone | Europe/Athens |
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10-day marine forecast — Astakós
| Date | Wind | Gusts | Waves |
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| WNW 6–11 kn | 15 kn | 0.1–0.3 m |
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| NW 3–9 kn | 13 kn | 0.2–0.3 m |
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| NW 2–9 kn | 12 kn | 0.2–0.3 m |
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| NW 3–7 kn | 9 kn | 0.2–0.2 m |
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| NW 4–11 kn | 13 kn | 0.2–0.4 m |
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| NNW 4–9 kn | 12 kn | 0.3–0.4 m |
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| SSW 4–9 kn | 11 kn | 0.4–0.4 m |
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| WNW 6–6 kn | 16 kn | 0.4–0.4 m |
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| NW 10–10 kn | 13 kn | 0.3–0.3 m |
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| W 10–10 kn | 15 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 Astakós right now?
As of the ECMWF IFS run 2026-08-03 12z: WNW wind 6–11 kn, waves 0.1–0.3 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 Astakós?
Astakós is classed as a small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Astakós?
Per the NGA World Port Index, anchorage depths run about 17 m. Verify against current official charts before entry.