Larantuka (IDLKA) — marine weather & port guide
Larantuka is a port in Indonesia at 8°21.0′S 122°59.0′E. Today (Aug 3): ESE wind 4–9 kn, waves 0.8–0.9 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 | 8°21.0′S 122°59.0′E |
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| UN/LOCODE | IDLKA |
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| Harbor size | Very small |
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| Harbor type | Open roadstead |
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| Shelter | Good |
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| Anchorage depth | 22 m |
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| Tide range | 0 m |
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| Time zone | Asia/Makassar |
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10-day marine forecast — Larantuka
| Date | Wind | Gusts | Waves |
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| ESE 4–9 kn | 22 kn | 0.8–0.9 m |
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| ESE 1–7 kn | 19 kn | 0.6–0.7 m |
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| SE 2–7 kn | 14 kn | 0.6–0.7 m |
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| E 3–6 kn | 16 kn | 0.6–0.7 m |
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| ESE 4–5 kn | 15 kn | 0.5–0.6 m |
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| SSE 1–6 kn | 7 kn | 0.4–0.5 m |
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| ESE 2–4 kn | 5 kn | 0.4–0.4 m |
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| ENE 5–5 kn | 19 kn | 0.3–0.3 m |
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| SE 4–4 kn | 14 kn | 0.3–0.3 m |
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| SE 4–4 kn | 15 kn | 0.2–0.2 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 Larantuka right now?
As of the ECMWF IFS run 2026-08-03 12z: ESE wind 4–9 kn, waves 0.8–0.9 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 Larantuka?
Larantuka is classed as a very small harbor (open roadstead), with good shelter in the NGA World Port Index.
How deep is the approach to Larantuka?
Per the NGA World Port Index, anchorage depths run about 22 m. Verify against current official charts before entry.