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Iguazu Falls with flow of 3,126 m³/s: what to expect on the visit
Marco Três newsroom · edited by Annie GrellmannUpdated on
The flow of the Iguaçu River at Iguazu Falls, in Foz do Iguaçu (Paraná, Brazil), reached 3,126 m³/s, almost 2.1 times the historic average of 1,500 m³/s.

Today's measurement shows 3,126 m³/s - that is, 2.1 times the historic average flow of 1,500 m³/s (equivalent to 1.5 million liters per second). This classification indicates a level well above normal, with water dropping about 1.3 Olympic swimming pools per second or 313 water trucks per second.
The strong volume of water creates dense mist on the walkways and sprays the falls more, producing an even more impressive spectacle, but it also raises the chance of a temporary closure of the final section of the walkway - a decision the park announces daily. The viewpoints remain open, as do most observation areas.
The high current is not related to the Itaipu Dam; the Iguaçu River responds to rains in western and southwestern Paraná, whose effect usually appears with a delay of several hours to days. The sediment that gives the water a brown tint comes from rainfall in the basin, not from dirt or pollution.
What this means for you: expect a lot of mist and wind while walking on the walkways, wear waterproof clothing and appropriate shoes, arrive early to avoid lines, and have a backup plan in case the final section of the walkway is closed. Bring rain covers or plastic bags to protect electronic devices, and enjoy the viewpoints that remain accessible to admire the water’s power without restrictions.
Read also: What is the best time to see Iguazu Falls?
Frequently asked questions
- Why is the Iguaçu River so full?
- The high flow comes from rains that fell in western and southwestern Paraná; the water takes hours to days to reach the park, increasing the river’s volume regardless of the Itaipu Dam.
- Can the Iguazu Falls walkway be closed because of the current?
- During strong floods the park may temporarily close the final section of the walkway for safety, but the viewpoints remain open - check the park’s official notice before planning your visit.
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