turismo ·
Annual events in Foz do Iguaçu: the border calendar
Marco Três newsroom · edited by Annie GrellmannUpdated on PortuguêsEspañol
The big events land in May and June, the two emptiest months of the year
Foz's calendar follows a pattern the data reveals: the major events happen in May and June, precisely the lowest visitor months at the Falls (72% and 78% of the median month). The city fills the low season with events, and travelling in those windows means a full programme and an empty park.
Direct answer: Foz's major events land in May and June, precisely the lowest visitor months at the Falls: 72% and 78% of the median month. The city fills its low season with events, and travelling in those windows means a full programme with an empty park.
The calendar
| When | What |
|---|---|
| May | Iguazu Falls Half Marathon, running inside the National Park (16 and 17 May in 2026) |
| June | FIT Cataratas, the tourism fair (2 to 4 June in 2027) |
| 10 June | Anniversary of Foz do Iguaçu, with cultural programming that week |
| June | Festas juninas in neighbourhoods, schools and parishes |
| September | 10 September, anniversary of Puerto Iguazú, a municipal holiday on the Argentine side |
| November | Black Friday, which drives trade in Ciudad del Este |
| December | Réveillon das Cataratas |
Dates and programmes change each year: confirm close to the event.
The pattern in the data
We have tracked monthly visitor numbers at the Falls since 2019. Cross them with the calendar and a coincidence appears that is not a coincidence:
| Month | Visitors vs. median month | Event |
|---|---|---|
| May | 72% (lowest of the year) | Half Marathon |
| June | 78% | FIT Cataratas + anniversary |
| January | 142% (highest) | New Year/holidays |
| July | 137% | holidays |
The city puts its big events exactly where spontaneous tourism is weakest. For visitors, that turns into opportunity: in May and June the walkways are freer, accommodation is easier outside festival week, and there is still programming in town.
The counterpoint is weather. June is the coldest month on the border and has the earliest sunset, around 17:56, which shortens the sightseeing day. The full comparison is in best time of year to see the Falls.
Three calendars
A detail unique to the border: a Brazilian holiday is not a holiday next door. Shops in Ciudad del Este follow the Paraguayan calendar and the Argentine side follows its own. A poorly timed trip finds the shops shut or the park packed with no warning. All three are cross-referenced in holidays across the three countries.
Event guides
- FIT Cataratas: dates and what it is
- Festa junina and São João in Foz
- Christmas and New Year in Foz
- Carnival in Foz: what to expect
- Black Friday in Ciudad del Este
Source: our own monthly visitor series for the attractions (ICMBio/Urbia Cataratas, 2019 to 2026), the FIT Cataratas organisers, and the municipal official agenda.
Frequently asked questions
- What are the main events in Foz do Iguaçu?
- The Iguazu Falls Half Marathon in May, FIT Cataratas and the city anniversary in June, and Réveillon das Cataratas in December. In November, Black Friday drives trade in Ciudad del Este across the bridge.
- When is FIT Cataratas 2027?
- From 2 to 4 June 2027. The 2026 edition ran from 10 to 12 June, and in 2025 the event drew more than 12,000 participants.
- When is the anniversary of Foz do Iguaçu?
- 10 June. That week concentrates cultural programming across the city.
- Does travelling during an event month spoil sightseeing?
- The opposite. May and June are the lowest visitor months at the Falls, at 72% and 78% of the median month. You get the city's programme and the emptiest park of the year.
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Content verified by the newsroom based on an official source: Série própria de visitação + agenda oficial. Last checked: 6/14/2026. Found something inaccurate? We fix it fast. How we work.
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