Porto Alegre marine weather forecast
Porto Alegre (BRPOA) is a port in Brazil at 30°1.0′S 51°13.0′W. Today (Nov 2): SSE wind 2–6 kn, waves 1.5–1.6 m, from the ECMWF IFS run 2026-11-02 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 | 30°1.0′S 51°13.0′W |
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| UN/LOCODE | BRPOA |
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| Harbor size | Medium |
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| Harbor type | River natural harbor |
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| Shelter | Excellent |
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| Channel depth | 5 m |
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| Anchorage depth | 6 m |
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| Tide range | 1 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 | Fuel oil, diesel, water, provisions |
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| Repairs | Limited |
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| Medical facilities | Available |
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10-day marine forecast — Porto Alegre
| Date | Wind | Gusts | Waves |
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| SSE 2–6 kn | 12 kn | 1.5–1.6 m |
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| SSE 2–7 kn | 15 kn | 1.4–1.5 m |
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| ENE 7–12 kn | 24 kn | 1.6–2.2 m |
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| SSW 6–8 kn | 16 kn | 1.8–2.3 m |
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| ENE 3–9 kn | 11 kn | 1.1–1.5 m |
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| ESE 5–10 kn | 13 kn | 1.2–1.4 m |
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| SSW 11–14 kn | 17 kn | 2.7–2.8 m |
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| E 3–3 kn | 9 kn | 2.5–2.5 m |
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| ENE 6–6 kn | 18 kn | 1.7–1.7 m |
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| N 4–4 kn | 9 kn | 2.0–2.0 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.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 14 kn on Nov 8. The highest modeled significant wave height is 2.8 m on Nov 8. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Porto Alegre right now?
As of the ECMWF IFS run 2026-11-02 12z: SSE wind 2–6 kn, waves 1.5–1.6 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 Porto Alegre?
Porto Alegre is classed as a medium harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Porto Alegre?
Per the NGA World Port Index, the entrance channel carries about 5 m and anchorage depths run about 6 m. Verify against current official charts before entry.
What restricts entry to Porto Alegre?
Entry is affected by overhead clearance limits. Check the live forecast on this page and official notices before approach.