El Niño Observatory › Monitored cities › RS › Porto Alegre
El Niño in Porto AlegreRS · Brazil
Current El Niño risk
Attention level: HighCritical · Flooding / extreme rain3 day(s) with heavy rain in a flood-prone zonePorto Alegre is inside the projected impact zone Southern Brazil, Uruguay & NE Argentina.
A strengthened subtropical jet brings persistent extreme rainfall. The 2023-24 Rio Grande do Sul floods are the canonical signature.
Next 14 days in Porto Alegre
3 of the next 14 days show a 60%+ chance of rain; 3 with heavy rain.
% is the chance of rain that day. The word shows how strong that rain should be. Tap a day for details. Depth is indicative, based on rainfall intensity, not an official flood forecast.
River flood risk: GloFAS model: river flow near you is forecast to run high vs recent levels. (Modeled river-flow estimate (GloFAS global flood model), not an official flood warning.)
Local news Porto Alegre
Recent coverage that mentions your area and this season's weather risks.
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Local videos Porto Alegre
Recent local coverage and preparedness clips for your area.
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Areas with flood history in Porto Alegre
Sarandi
historically flood-prone area; was one of the most affected in 2024 and has already had recurrent floods
Navegantes
low-lying area next to the containment system; has already registered floods and dike breaches
Centro Histórico
drainage failures and pumps have already caused widespread flooding in recent floods
Menino Deus
repeated flooding during Guaíba floods and due to pumping failures
Cidade Baixa
low elevation and insufficient drainage; flooded in 2024 with great impact
Ipanema
southern waterfront exposed to Guaíba floods and water surges in recent events
Sources: [1] [2] [3] [4] · Images: Google Street View. They show the street on a normal day, not during a flood. AI-generated list using web search (Perplexity Sonar) from news and public sources. Use as a starting reference, not an official risk map.
What you should do
- Learn your neighborhood's flood-prone streets and the fastest route to higher ground.
- Never walk or drive through floodwater: 15 cm of moving water can knock you down.
- Keep documents, medication and chargers in a waterproof bag, ready to grab.
- Sign up for your city's official rain/flood alerts (SMS or app) today.
- Always follow your national meteorological service and local civil defense. Their warnings override anything on this page.
Emergency numbers
Numbers are national defaults; some regions use local variants. Confirm with local authorities.
Official monitoring agencies
Get alerts for your city
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Frequently asked questions
Is Porto Alegre affected by El Niño?
Yes. Porto Alegre sits in the documented impact zone Southern Brazil, Uruguay & NE Argentina: A strengthened subtropical jet brings persistent extreme rainfall. The 2023-24 Rio Grande do Sul floods are the canonical signature.
Will it rain in Porto Alegre in the coming days?
The current 14-day forecast shows 3 days with a 60%+ chance of rain and 3 days with heavy rain. Probabilities update every 6 hours.
What should residents of Porto Alegre do?
Learn your neighborhood's flood-prone streets and the fastest route to higher ground. Never walk or drive through floodwater: 15 cm of moving water can knock you down. Always follow your national meteorological service and local civil defense. Their warnings override anything on this page.
Other cities in Brazil
AracajuBalneário CamboriúBelémBelo HorizonteBlumenauBoa VistaBrasíliaCampo GrandeCascavelCaxias do Sul
Data refreshes every 6 hours. Forecast: Open-Meteo. Zone risk: NOAA data and documented El Niño patterns.