What time does the Brazilian side of Iguazu Falls open?

It opens at 9am Monday to Friday and 8:30am on weekends and holidays. The last entry is at 4pm and the park closes at 5:30pm. Arriving at opening is the best way to face a shorter line (source: cataratasdoiguacu.com.br).

What is the best time of day to avoid crowds at Iguazu Falls?

The first hour after opening is the quietest at both parks. Arrive right at opening time, ideally Tuesday to Thursday, which are the calmest days.

What time does the Argentine side open?

Parque Nacional Iguazú opens at 8am and closes at 6pm every day, with access to the falls area until around 4pm. The last train to the Devil's Throat leaves around 3:30pm.

Which weekday is least crowded at Iguazu Falls?

Tuesday, Wednesday and Thursday tend to be the least busy days at both parks. Weekends, holidays and school breaks (July and December-January) are the busiest.

Best time of day to visit Iguazu Falls and avoid crowds

Arrive right at opening to hit the smallest crowd: the Brazilian side opens at 9am on weekdays and 8:30am on weekends; the Argentine side opens at 8am every day. The first hour is the quietest at both parks, and Tuesday, Wednesday and Thursday are the least busy days.

Quick answer: The quietest time to visit Iguazu Falls is early on a weekday: arrive at the park gates at opening (8 am on the Argentine side, 8:30 am on the Brazilian side) and start with the Devil’s Throat circuit; Tuesdays, Wednesdays and Thursdays stay least crowded, keeping lines short.

⚠️ Update (Aug 2026): the Devil's Throat (Argentine side) is closed from August 3, 2026, for about 40 days, for preventive removal of the walkways ahead of river flooding (El Niño). The rest of Iguazú National Park stays open and the Brazilian side is not affected. See what changes →

To beat the lines at Iguazu Falls, the time of day matters more than the season. Arriving at opening and picking a weekday makes a real difference on the walkways.

Arrive at opening

The first hour after the park opens is the quietest on both sides, and the morning light is better for photos. On the Brazilian side, getting there by 8:30am helps you catch the first panoramic buses that run from the Visitor Center to the Cataratas Trail (the internal route is about 12 km and the bus comes every 20 to 30 minutes). On the Argentine side, being at the gate by 8am puts you ahead of the larger groups.

Opening hours for both parks

Park	Opens	Last entry	Closes
Brazil (Mon to Fri)	9am	4pm	5:30pm
Brazil (Sat, Sun, holidays)	8:30am	4pm	5:30pm
Argentina (daily)	8am	around 4pm	6pm

On the Argentine side, the last Ecological Train toward the Devil's Throat leaves around 3:30pm. Since it is the most sought-after spot, do that stretch early rather than at the end of the day.

The quietest days

Tuesday, Wednesday and Thursday tend to be the least busy days at both parks. Weekends and holidays fill up more, and school holidays (July and the December to January break) push the crowds higher. If you can choose, a weekday right at opening combines both factors in your favor and helps keep the line short.

On the Argentine side, start at the Devil's Throat

The Devil's Throat is the most sought-after spot on the Argentine side. Doing that circuit first, catching one of the early trains (the first departures are 8:20, 8:40 and 9:00), reverses the usual flow and often catches the walkway at its emptiest. Then you head back at your own pace to the Upper and Lower circuits. If you would rather not rely on the train, there is a walking trail of about 40 minutes to the Devil's Throat station.

How much time to set aside

The main walk on the Brazilian side takes about 2 hours. The Argentine side is larger: between the circuits and the train, set aside 3 to 4 hours. You can comfortably do one side per day.

Check the crowd levels before you go

Lines and foot traffic change from one day to the next. Before you head out, check Marco Três for the live crowd forecast of the four attractions at /lotacao and the best-time guide at /quando-ir. That way you pick your hour from the day's data, not a guess, and hit the smallest crowd on the walkways.