Iguazu Falls at maximum flow: what to expect with discharge of 10,107 m³/s

Today's measurement indicates that 10,107 m³/s of water pass over the falls each second, which is equivalent to four Olympic swimming pools per second. Discharge is the volume of water that passes a point in one second; the higher it is, the more intense the fall, the noise, and the mist.

This figure is the highest reading in our series, which began in June 2026, meaning it is a rare moment and shows that the Falls are exceptionally full. In such situations, parks usually close sections of the final walkway temporarily for safety, as happened in July 2026. Since September 11, the walkway on the Brazilian side has remained closed; the trail and viewpoints stay open (see the news).

For those planning a visit, the advantage is the impressive view of the water's power, but you need to be prepared for longer lines, higher humidity, and possible restrictions in observation areas. Check the real-time status on the park information portal before leaving home.

What this means for you:

• If you want to see the Falls at their most powerful spectacle, this is the ideal time, but arrive early to avoid long queues;
• Bring a raincoat or poncho, as the mist will be intense;
• Verify beforehand whether the final walkway is open and, if it is closed, use the alternative viewpoints listed on the park website.

Read also: Best time to see Iguazu Falls