turismo ·
Iguazu Falls still in flood: 8,204 m³/s, among the highest in our series
Marco Três newsroom · edited by Annie GrellmannEspañolPortuguês
The flow of the Iguaçu River at the waterfalls is 8,204 m³/s, placing it among the top 5% of readings in the series that Marco Três has been tracking since June 2026, and the Brazilian walkway remains closed.

Today's measurement indicates flow = volume of water passing per second of 8,204 m³/s at the falls, a value that falls within the top 5% of readings in the series that Marco Três has been monitoring since June 2026 (the highest was 10,107 m³/s on September 12). This amount is roughly equivalent to 3.3 Olympic-size swimming pools of water descending every second, creating fuller falls, louder noise, and more mist on the walkways.
For those planning to visit Iguaçu Falls now, the situation brings several practical effects: the greater water force increases steam production, which creates more frequent rainbow photos and a rare natural-spectacle atmosphere. On the other hand, such intense flows usually lead park managers to temporarily close sections of walkways or viewpoints for safety, and that is happening now: since September 11, the Brazilian-side walkway has been closed, while the trail and viewpoints remain open (see the news).
The recommendation is to arrive well prepared: bring a raincoat, slip-resistant shoes, and be ready for potentially longer queues at access points. Before you go, check the trail status and updated maps on the official website to confirm whether any section is closed on the day of your visit.
What this means for you: the waterfalls are experiencing a rare high-water period, ideal for photos and feeling nature’s power, but be prepared for heavy rain and possible area closures. Plan your itinerary in advance, check the live situation, and enjoy the unique experience that few visitors get to have.
Read also: Best time to see Iguaçu Falls
Frequently asked questions
- Is the flow of 8,204 m³/s among the highest ever measured?
- Yes, the data shows this value is among the top 5% of readings in Marco Três’s series that started in June 2026; it is not a historic river record.
- Can this high flow prevent access to any part of the falls?
- Yes, flows this intense usually lead to temporary closure of walkway sections or viewpoints for safety; check /cataratas-hoje before you go.
- How should I prepare to visit the falls with this record flow?
- Bring a raincoat, appropriate shoes, check trail status in real time, and be aware that there may be longer lines and intense mist.
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Content verified by the newsroom based on an official source: Dados Marco Três · ANA. Last checked: 9/13/2026. Found something inaccurate? We fix it fast. How we work.
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