South America Regional Profile
Argentina
Sensitive Rain Seasons
- Spring–Summer (October–March): Strongly correlated with excessive rainfall in eastern provinces and the Littoral region.
Primary Environmental Hazards
- • Major river flooding along the Paraná, Uruguay, and Paraguay river systems
- • Inundation of low-lying farmland in Entre Ríos, Corrientes, and Santa Fe
- • Generally favorable grain yields (soybean and maize) across the central Pampas when flooding is contained
- • Urban drainage backups and road closures in the metropolitan Buenos Aires corridor
Current 2026–27 El Niño Context for Argentina
The high forecast magnitude of the 2026–27 El Niño indicates elevated flood risks along northeastern river basins while providing beneficial soil moisture to the Pampas grain belt.
Major Monitored River Basins in Argentina
Paraná River at Rosario
32.95° S, 60.64° WVital agricultural export corridor; subject to massive river rises during El Niño.
Uruguay River at Concordia
31.39° S, 58.02° WProne to rapid, destructive flood peaks affecting riverine communities.
Monitored Cities in Argentina
Select any city below for real-time temperature, 7-day rainfall forecasts, and live flood risk score:
Buenos Aires
34.6° S, 58.4° WCordoba
31.4° S, 64.2° WRosario
32.9° S, 60.6° WMendoza
32.9° S, 68.8° WLa Plata
34.9° S, 58.0° WSan Miguel de Tucuman
26.8° S, 65.2° WMar del Plata
38.0° S, 57.6° WHistorical El Niño Events in Argentina
1982–83 Event
Historic Paraná river overflow submerged massive tracts of northeastern Argentina.
1997–98 Event
Massive floods displaced over 100,000 residents across the Littoral provinces.
2015–16 Event
Severe summer river cresting caused widespread evacuations in Concordia and Santa Fe.