Weather in Iguazu in August 2025
Average weather
Average temperature in Iguazu in August
Going from a maximum of +33°C during the day to a minimum of +7°C during the night, the temperature in August averages around +26°C.
The average maximum temperature goes up 4% by the end of the month, compared with the beginning of the month, from +28°C to +29°C.
Is Iguazu warm or cold in August?
Iguazu is typically warm in August.
Maximum temperatures go up compared to the previous month from +22°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 Iguazu:
Climate in Iguazu in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +22°C | +25°C | +26°C | ||||
| Min. temperature | ||||||
| -1°C | 0°C | +2°C | ||||
| Max. temperature | ||||||
| +31°C | +35°C | +39°C | ||||
| Rainfall | ||||||
| 125 mm | 103 mm | 152 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 81% | 76% | 75% | ||||
| Air pressure | ||||||
| 1017 HPa | 1016 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 14 | 15 | 11 | ||||
| Cloudy days | ||||||
| 6 | 6 | 5 | ||||
| Rainy days | ||||||
| 10 | 9 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August often has better weather than July. It’s getting warmer as August arrives. The average maximum temperature goes up from +22°C to +25°C during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 125 mm to 103 mm. It feels drier, as humidity decreases from 81% to 76%. 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.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Iguazu is gradually increasing during August, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Iguazu?
Climate Change over Years
The climate in Iguazu 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 (+28°C). The driest year was 2020 with only 1219 mm of rainfall, and the wettest year was 1983 with 3257 mm.
FAQ
Is August a good time to visit Iguazu?
Can you sunbathe in Iguazu in August?
Is Iguazu rainy in August?
Is it sunny in Iguazu in August?
Other cities in Argentina
Monthly weather in Iguazu
Source of the data
For this page, we’ve looked at the typical weather in Iguazu, 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.