turismo ·
Very full waterfalls: what to expect on the visit
Marco Três newsroom · edited by Annie Grellmann
The flow rate of the Cataratas do Iguaçu is 5,240 m³/s, almost 3.5 times the historic average of 1,500 m³/s.

The measurement indicates that 5,240 m³/s corresponds to about 2.1 Olympic swimming pools cascading per second, or 524 water tank trucks per second – a volume that equals the daily water consumption of the entire population of Foz do Iguaçu in roughly 8 seconds. This flow is 3.5 times above the historic average (1,500 m³/s), ranking among the highest values ever recorded.
With water so abundant, the mist on the walkways becomes denser and the spectacle of the falls even more impressive. However, during very strong floods the park usually closes only the final section of the walkway, while the viewpoints remain open. This decision is made by park officials and may change depending on the day's conditions, so check the real-time status on the official Cataratas website before heading out.
The water in the current is darker due to sediment carried by rain in the basin, but this does not affect the safety of the visitor areas. There is no connection with the Itaipu dam, which is on the Paraná River and does not control the flow of the Cataratas.
What this means for you: expect more mist and an even more powerful view of the falls, but plan to arrive early and check whether the final section of the walkway is open at /cataratas-hoje. Bring a rain cover or poncho, non-slip shoes, and if you want clear photos, prefer the viewpoints that remain open even during floods.
Read also: Why visit the Cataratas do Iguaçu?
Frequently asked questions
- Can the final section of the walkway be closed?
- Yes, during very strong floods the park usually closes only the final section of the walkway; check the real-time status on the official Cataratas website.
- Do I need to bring rain gear or special equipment?
- Bring a rain cover or poncho and non-slip shoes, as the mist and humidity are intense when the flow is that high.
Still have questions? Ask the border
Marco Três's AI answers instantly, only from verified guides and live data, never made up.
Ask my own question →Read also
Live tools
Saiba de tudo antes de todo mundo
Câmbio, clima e o que importa nos três países, no seu e-mail, todo dia. Gratuito, sem spam.
✓ Marco Três fact-check
Content verified by the newsroom based on an official source: Dados Marco Três · ANA. Last checked: 7/27/2026. Found something inaccurate? We fix it fast. How we work.
Spotted something wrong? Tell us.
AI-automated curation with editorial supervision, your correction or suggestion helps keep things right.