Guia 3 Border Bulletin: October 2026

In October 2026, the dollar averaged R$ 5.12, with a low of R$ 4.98 and a high of R$ 5.43, according to the daily series from Guia 3/AwesomeAPI.

Iguaçu River Flow at the Falls

The average flow was 8,352 m³/s, with a peak of 16,997 m³/s, and 21 days above 6,500 m³/s – a level that usually triggers the preventive closure of the Devil's Throat in the Argentine park. The typical river flow (long-term average) is about 1,500 m³/s, meaning the month was 457% fuller than normal.

Border Aviation (September 2026)

In the last official month, the border received 1,316 arriving flights – 806 in Foz do Iguaçu and 510 in Puerto Iguazú, totaling 75,892 passengers on the Argentine side (data from ANAC Brazil and ANAC Argentina).

Passengers at Foz Airport (June 2026)

The airport recorded 228,021 passengers, a 36.3% increase over the same month the previous year (official ANAC data).

Fuel

Regular gasoline in Foz do Iguaçu cost R$ 6.45 per liter (ANP). In Argentina, gasoline reached R$ 8.13 per liter, price converted using the blue dollar. This represents 26% more to fuel up in Argentina.

Itaipu

The plant generated an average of 248.0 GWh per day in October 2026 (ONS). Each GWh equals the daily consumption of roughly 200,000 households – Brazilian energy goes to the National Interconnected System, while almost all Paraguayan consumption is covered by Itaipu.

What this means for you:

• Plan your visit to the Falls knowing the river is far above normal; check the status of the Devil's Throat before you go.
• The dollar is around R$ 5.12; use this rate to calculate cross-border shopping expenses.
• If you fly, note there are more arrivals in Foz than in Puerto Iguazú, but Argentine passenger volume is high.
• Foz airport demand is growing – expect longer lines at check-in and security.
• Fueling on the Argentine side costs 26% more; consider filling up in Foz.
• Itaipu’s energy does not affect local supply in Foz, but it highlights the plant’s regional importance.

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Monthly bulletin generated from Guia 3’s open data series (official sources: ANA, ANAC Brazil and Argentina, ANP, Argentine Energy Secretariat, Comex Stat/MDIC, ONS, AwesomeAPI). Reusable data with credit — open data.