Guaiba Island Terminal marine weather forecast
Guaiba Island Terminal is a port in Brazil at 23°1.0′S 44°2.0′W. Today (Sep 17): E wind 13–15 kn, waves 1.8–2.0 m, from the ECMWF IFS run 2026-09-17 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 | 23°1.0′S 44°2.0′W |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Poor |
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| Channel depth | 22 m |
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| Anchorage depth | 22 m |
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| Tide range | 2 m |
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| Pilotage | Compulsory |
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| Time zone | America/Sao_Paulo |
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Facilities & services (NGA World Port Index)| Tugs | Assistance available |
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| Supplies | Water |
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| Repairs | None |
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10-day marine forecast — Guaiba Island Terminal
| Date | Wind | Gusts | Waves |
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| E 13–15 kn | 19 kn | 1.8–2.0 m |
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| ENE 15–20 kn | 27 kn | 1.9–2.2 m |
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| ENE 22–24 kn | 32 kn | 2.3–2.5 m |
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| ENE 14–25 kn | 33 kn | 1.8–2.6 m |
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| NE 8–20 kn | 27 kn | 1.3–1.7 m |
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| NNW 8–18 kn | 23 kn | 1.0–1.2 m |
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| SE 4–11 kn | 14 kn | 1.1–1.1 m |
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| E 11–11 kn | 16 kn | 2.1–2.1 m |
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| NNE 4–4 kn | 10 kn | 1.4–1.4 m |
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| S 14–14 kn | 22 kn | 1.5–1.5 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 25 kn on Sep 20. The highest modeled significant wave height is 2.6 m on Sep 20. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Guaiba Island Terminal right now?
As of the ECMWF IFS run 2026-09-17 12z: E wind 13–15 kn, waves 1.8–2.0 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 Guaiba Island Terminal?
Guaiba Island Terminal is classed as a small harbor (coastal natural harbor), with poor shelter in the NGA World Port Index.
How deep is the approach to Guaiba Island Terminal?
Per the NGA World Port Index, the entrance channel carries about 22 m and anchorage depths run about 22 m. Verify against current official charts before entry.
What restricts entry to Guaiba Island Terminal?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.