turismo ·
Weather in Foz this week (09/16 to 09/22): rain 5 days, low 11°C
Marco Três newsroom · edited by Annie GrellmannPortuguêsEspañol
Day-by-day forecast for visitors to the Falls, Itaipu and the border, updated throughout the week as conditions change
The week in Foz do Iguaçu ranges from 11°C (Wednesday) to 28°C (Sunday). Rain is expected on Friday, Saturday, Sunday, Monday and Tuesday. See the day-by-day details below. This article is revised during the week whenever the forecast changes.
Day by day
| day | weather | min–max | rain |
|---|---|---|---|
| Wednesday 09/16 | clear sky | 11–25°C | 0% |
| Thursday 09/17 | cloudy | 13–27°C | 0% |
| Friday 09/18 | rain showers | 16–26°C | 73% |
| Saturday 09/19 | storm | 19–22°C | 100% |
| Sunday 09/20 | drizzle | 20–28°C | 84% |
| Monday 09/21 | storm | 20–24°C | 80% |
| Tuesday 09/22 | storm | 20–23°C | 93% |
What this means for your visit
On rainy days, the Falls remain impressive (bring a light raincoat) and Itaipu is barely affected, as most tours are covered. A low of 11°C calls for a real jacket, especially early morning and at night. The likelihood of full capacity for attractions is in Will it be full? and the live bridge queue in Bridge queue.
Weekly updates
- 09/15: Tuesday (09/15) now has a high chance of rain (84%).
Source and method
Numbers: Open-Meteo (hourly model for Foz do Iguaçu, CC BY 4.0). Official INMET bulletin collected on 2026-09-15 matches the scenario (see official block at /previsao). This article is generated and automatically revised by Marco Três from the data, without speculation. When the forecast changes, the text changes and the alteration is recorded above. Full 14-day forecast at /previsao.
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Content verified by the newsroom based on an official source: Open-Meteo + INMET · análise Marco Três. Last checked: 9/16/2026. Found something inaccurate? We fix it fast. How we work.
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