turismo ·
Weather in Foz this week (09/10 to 09/16): rain 4 days, low 12°C
Marco Três newsroom · edited by Annie Grellmann
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 runs from 12°C (Wednesday) to 31°C (Friday). Rain is expected on Thursday, Friday, Saturday and Sunday. 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 |
|---|---|---|---|
| Thursday 09/10 | thunderstorm with hail | 19–25°C | 100% |
| Friday 09/11 | thunderstorm | 20–31°C | 98% |
| Saturday 09/12 | drizzle | 16–25°C | 57% |
| Sunday 09/13 | drizzle | 14–21°C | 59% |
| Monday 09/14 | cloudy | 16–23°C | 20% |
| Tuesday 09/15 | few clouds | 13–24°C | 4% |
| Wednesday 09/16 | clear sky | 12–25°C | 1% |
What this means for the visit
On rainy days, the Falls remain impressive (bring a light raincoat) and Itaipu is barely affected — most tours are covered. A low of 12°C calls for a real coat, especially early in the morning and at night. The likelihood of full capacity for attractions is shown at Will it be full? and the live bridge queue at Bridge queue.
Weekly updates
- 09/06 — Friday (09/11): high changed from 31°C to 23°C.
- 09/06 — Sunday (09/13) now has a high chance of rain (52%).
- 09/08 — Saturday rain (09/12) removed from the scenario (now 35%).
- 09/08 — Sunday rain (09/13) removed from the scenario (now 49%).
- 09/10 — Friday (09/11): high changed from 24°C to 31°C.
- 09/10 — Saturday (09/12) now has a high chance of rain (57%).
- 09/10 — Sunday (09/13) now has a high chance of rain (59%).
Source and method
Numbers: Open-Meteo (hourly model for Foz do Iguaçu, CC BY 4.0). Official INMET bulletin collected on 2026-09-10 matches the scenario (see official block at /previsao). This article is generated and automatically revised by Marco Três from the data — no 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: 9/10/2026. Found something inaccurate? We fix it fast. How we work.
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