Sattahip marine weather forecast
Sattahip (THSAT) is a port in Thailand at 12°38.0′N 100°55.0′E. Today (Sep 15): SW wind 10–15 kn, waves 0.6–0.7 m, from the ECMWF IFS run 2026-09-15 00z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 12°38.0′N 100°55.0′E |
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| UN/LOCODE | THSAT |
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| Harbor size | Medium |
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| Harbor type | Coastal breakwater harbor |
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| Shelter | Poor |
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| Channel depth | 8 m |
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| Anchorage depth | 23 m |
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| Tide range | 0 m |
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| Pilotage | Compulsory |
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| Time zone | Asia/Bangkok |
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10-day marine forecast — Sattahip
| Date | Wind | Gusts | Waves |
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| SW 10–15 kn | 17 kn | 0.6–0.7 m |
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| WSW 12–15 kn | 21 kn | 0.6–0.9 m |
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| WSW 13–17 kn | 23 kn | 0.8–1.0 m |
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| SW 12–20 kn | 26 kn | 0.8–1.5 m |
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| SSW 11–15 kn | 18 kn | 1.0–1.4 m |
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| SSW 7–11 kn | 14 kn | 0.6–0.9 m |
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| SSW 5–5 kn | 6 kn | 0.4–0.4 m |
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| SW 2–2 kn | 11 kn | 0.3–0.3 m |
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| WNW 6–6 kn | 10 kn | 0.2–0.2 m |
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| NNE 5–5 kn | 14 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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 20 kn on Sep 18. The highest modeled significant wave height is 1.5 m on Sep 18. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Sattahip right now?
As of the ECMWF IFS run 2026-09-15 00z: SW wind 10–15 kn, waves 0.6–0.7 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 Sattahip?
Sattahip is classed as a medium harbor (coastal breakwater harbor), with poor shelter in the NGA World Port Index.
How deep is the approach to Sattahip?
Per the NGA World Port Index, the entrance channel carries about 8 m and anchorage depths run about 23 m. Verify against current official charts before entry.