Blanglancang marine weather forecast
Blanglancang (IDBLL) is a port in Indonesia at 5°14.0′N 97°6.0′E. Today (Sep 14): SSE wind 2–3 kn, from the ECMWF IFS run 2026-09-14 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 | 5°14.0′N 97°6.0′E |
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| UN/LOCODE | IDBLL |
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| Harbor size | Small |
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| Harbor type | Typhoon harbor |
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| Shelter | Fair |
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| Channel depth | 14 m |
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| Anchorage depth | 22 m |
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| Tide range | 0 m |
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| Pilotage | Compulsory |
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| Time zone | Asia/Jakarta |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Repairs | None |
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| Medical facilities | Available |
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10-day marine forecast — Blanglancang
| Date | Wind | Gusts | Waves |
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| SSE 2–3 kn | 9 kn | — |
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| WSW 1–5 kn | 12 kn | — |
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| SSE 2–7 kn | 15 kn | — |
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| SE 1–8 kn | 16 kn | — |
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| SE 3–4 kn | 9 kn | — |
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| E 3–9 kn | 11 kn | — |
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| SE 3–3 kn | 4 kn | — |
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| NNE 4–4 kn | 12 kn | — |
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| WNW 3–3 kn | 14 kn | — |
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| WNW 3–3 kn | 14 kn | — |
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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 9 kn on Sep 19. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Blanglancang right now?
As of the ECMWF IFS run 2026-09-14 12z: SSE wind 2–3 kn. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Blanglancang?
Blanglancang is classed as a small harbor (typhoon harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Blanglancang?
Per the NGA World Port Index, the entrance channel carries about 14 m and anchorage depths run about 22 m. Verify against current official charts before entry.