Foz do Iguaçu
September
Weather in Foz do Iguaçu for September 2026
Your guide to Foz do Iguaçu weather in September - trends and predictions
Tormentas - See hour by hour.
Until now, September 2026 in Foz do Iguaçu has been significantly cooler than historical averages by 5.2 °C, with average temperature of 22.6 °C.
Expect cooler weather in the next days in Foz do Iguaçu with the forecast suggesting a temperature of 26.8 °C, lower than the historical average.
In general, the average temperature in Foz do Iguaçu at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 29.1 °C by the end of September.
The climate of Foz do Iguaçu in September is notably wet, with an average of 12 rainy days, and a total of 49 mm of precipitation.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
18
Dry days
12
Rainy days
0
Snow days
31°/16°
Temperatures
14 km/h
Avg max wind
55 %
Avg humidity
Foz do Iguaçu Weather September
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Temperatures trend during September in Foz do Iguaçu
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September weather in Foz do Iguaçu day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 25° /15° | 0.6 mm | 6 | |
| 2 Sept. |  Sunny | 28° /12° | 0 mm | 7 | |
| 3 Sept. | Sunny | 32° /17° | 0.1 mm | 8 | |
| 4 Sept. |  Partly cloudy | 29° /17° | 0.8 mm | 7 | |
| 5 Sept. |  Overcast | 21° /12° | 3.8 mm | 4 | |
| 6 Sept. | Sunny | 23° /8° | 0 mm | 7 | |
| 7 Sept. | Sunny | 27° /11° | 0.1 mm | 8 | |
| 8 Sept. | Sunny | 31° /15° | 2.8 mm | 8 | |
| 9 Sept. | Overcast | 29° /17° | 4.9 mm | 6 | |
| 10 Sept. | Sunny | 30° /16° | 7.8 mm | 6 | |
| 11 Sept. | Sunny | 32° /17° | 4.2 mm | 7 | |
| 12 Sept. | Partly cloudy | 31° /17° | 0 mm | 7 | |
| 13 Sept. | Partly cloudy | 28° /15° | 0.1 mm | 7 | |
| 14 Sept. | Light rain shower | 25° /14° | 5.3 mm | 6 | |
| 15 Sept. |  Moderate rain | 24° /15° | 7.5 mm | 5 | |
| 16 Sept. |  Fog | 28° /13° | 1.3 mm | 7 | |
| 17 Sept. | Sunny | 30° /15° | 0.4 mm | 8 | |
| 18 Sept. | Patchy rain possible | 30° /15° | 0.2 mm | 6 | |
| 19 Sept. | Light rain shower | 22° /18° | 14 mm | 1.7 | |
| 20 Sept. | Sunny | 29° /19° | 2.3 mm | 9.1 | |
| 21 Sept. | Light rain shower | 31° /18° | 7.5 mm | 7.4 | |
| 22 Sept. | Overcast | 23° /14° | 3.9 mm | 7 | |
| 23 Sept. | Sunny | 27° /12° | 0.9 mm | 8 | |
| 24 Sept. | Overcast | 29° /20° | 0 mm | 8 | |
| 25 Sept. | Sunny | 32° /23° | 0 mm | 9 | |
| 26 Sept. | Overcast | 26° /20° | 1.8 mm | 7 | |
| 27 Sept. | Overcast | 30° /21° | 0.8 mm | 8 | |
| 28 Sept. | Sunny | 31° /21° | 1.7 mm | 9 | |
| 29 Sept. |  Thundery outbreaks possible | 34° /22° | 2.9 mm | 9 | |
| 30 Sept. | Light rain shower | 22° /15° | 31.8 mm | 6 | |
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Important Notice
Our weather forecast for Foz do Iguaçu in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Foz do Iguaçu forecast closer to your planned date for the most up-to-date weather information.
Change Month
Foz do Iguaçu in September - FAQ
What are the expected maximum and minimum temperatures in Foz do Iguaçu during September?
Expect warm days with temperatures around 31°, cooling to mild conditions of 16° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Foz do Iguaçu during September?
In September, Foz do Iguaçu can expect light to moderate rainfall, totaling 49 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Foz do Iguaçu during September?
The average wind speed in Foz do Iguaçu during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Foz do Iguaçu
Explore the daily rainfall trends and prepare for Foz do Iguaçus September weather 💧
Typically, Foz do Iguaçu has 12 rainy days in September with a total of 49 mm of rainfall.
UV exposure in Foz do Iguaçu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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