Weather in Foz Do Iguacu in August 2025
Average weather
Average temperature in Foz Do Iguacu in August
Going from a maximum of +34°C during the day to a minimum of +7°C during the night, the temperature in August averages around +27°C.
The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +29°C to +31°C.
Is Foz Do Iguacu warm or cold in August?
Foz Do Iguacu is typically warm in August.
Maximum temperatures go up compared to the previous month from +23°C to +25°C. The minimum temperature also goes up from +13°C to +14°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how August is compared to other months in Foz Do Iguacu:
Climate in Foz Do Iguacu in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +23°C | +25°C | +27°C | ||||
| Min. temperature | ||||||
| -3°C | -1°C | +1°C | ||||
| Max. temperature | ||||||
| +32°C | +37°C | +40°C | ||||
| Rainfall | ||||||
| 114 mm | 99 mm | 146 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 79% | 75% | 74% | ||||
| Air pressure | ||||||
| 1017 HPa | 1016 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 14 | 15 | 12 | ||||
| Cloudy days | ||||||
| 6 | 6 | 5 | ||||
| Rainy days | ||||||
| 10 | 9 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +23°C to +25°C during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 114 mm to 99 mm. It feels drier, as humidity decreases from 79% to 75%. The average wind speed doesn’t change much during August, staying around 2 m/s. The good news is there are likely to be more sunny days in August, from 14 to 15.
September brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Foz Do Iguacu is gradually increasing during August, going from 2 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Foz Do Iguacu?
Climate Change over Years
The climate in Foz Do Iguacu in August has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+26°C) and the highest in 2020 (+29°C). The driest year was 2021 with only 1098 mm of rainfall, and the wettest year was 1983 with 2760 mm.
FAQ
Is August a good time to visit Foz Do Iguacu?
Can you sunbathe in Foz Do Iguacu in August?
Is Foz Do Iguacu rainy in August?
Is it sunny in Foz Do Iguacu in August?
Other cities in Brazil
Monthly weather in Foz Do Iguacu
Source of the data
For this page, we’ve looked at the typical weather in Foz Do Iguacu, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.