Gunung Batu Besar (IDBTH) — marine weather & port guide
Gunung Batu Besar is a port in Indonesia at 2°37.0′S 116°18.0′E. Today (Aug 3): S wind 7–12 kn, waves 0.7–0.8 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 | 2°37.0′S 116°18.0′E |
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| UN/LOCODE | IDBTH |
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| Harbor size | Very small |
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| Harbor type | River natural harbor |
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| Shelter | Good |
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| Channel depth | 5 m |
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| Anchorage depth | 9 m |
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| Tide range | 1 m |
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| Time zone | Asia/Makassar |
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10-day marine forecast — Gunung Batu Besar
| Date | Wind | Gusts | Waves |
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| S 7–12 kn | 14 kn | 0.7–0.8 m |
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| S 8–13 kn | 18 kn | 0.6–1.0 m |
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| S 11–15 kn | 20 kn | 0.9–1.2 m |
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| S 13–14 kn | 20 kn | 0.9–1.2 m |
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| S 12–14 kn | 18 kn | 0.9–1.1 m |
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| S 14–15 kn | 19 kn | 1.0–1.1 m |
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| S 12–12 kn | 15 kn | 0.9–1.0 m |
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| SSE 13–13 kn | 18 kn | 1.0–1.0 m |
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| S 14–14 kn | 22 kn | 1.1–1.1 m |
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| S 13–13 kn | 19 kn | 1.0–1.0 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 Gunung Batu Besar right now?
As of the ECMWF IFS run 2026-08-03 12z: S wind 7–12 kn, waves 0.7–0.8 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 Gunung Batu Besar?
Gunung Batu Besar is classed as a very small harbor (river natural harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Gunung Batu Besar?
Per the NGA World Port Index, the entrance channel carries about 5 m and anchorage depths run about 9 m. Verify against current official charts before entry.