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Sunny day and full waterfalls in Foz do Iguaçu

Guia 3 newsroom · edited by Annie GrellmannUpdated on PortuguêsEspañol

Today, July 17, 2026, the weather in Foz do Iguaçu, Brazil, is dry, with a high of 28°C and a low of 21°C, and Iguazu Falls has a record flow rate of 2,886 m³/s.

Sunny day and full waterfalls in Foz do Iguaçu
Foto: Dennis G. Jarvis / Wikimedia Commons · CC BY-SA 2.0

The sun remains cloudless, the UV index reaches 5.1 and the dollar is quoted at R$ 5.08, while sunset occurs at 6:06 PM, with the golden hour starting at 5:06 PM - ideal time for photos at the Three Borders Monument. The Falls' flow rate is 2,886 m³/s, well above the historical average of 1,500 m³/s, ensuring full cascades.

Source: Data from Guia 3 (Open-Meteo · AwesomeAPI · ANA · Nager).

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When is the best time to photograph the Three Borders Landmark?
The golden hour starts around 17:06, just before sunset at 18:06.

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