Weather in Foz Do Iguacu in May 2025
Average weather
Average temperature in Foz Do Iguacu in May
Going from a maximum of +30°C during the day to a minimum of +8°C during the night, the temperature in May averages around +25°C.
The average maximum temperature goes down 23% by the end of the month, compared with the beginning of the month, from +29°C to +24°C.
Is Foz Do Iguacu warm or cold in May?
Foz Do Iguacu is typically warm in May.
Maximum temperatures go down compared to the previous month from +28°C to +24°C. The minimum temperature also goes down from +18°C to +15°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
May is one of the coolest months in Foz Do Iguacu, here is the comparison with other months:
Climate in Foz Do Iguacu in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +24°C | +22°C | ||||
| Min. temperature | ||||||
| +2°C | 0°C | -1°C | ||||
| Max. temperature | ||||||
| +36°C | +35°C | +32°C | ||||
| Rainfall | ||||||
| 147 mm | 162 mm | 129 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 80% | 83% | 83% | ||||
| Air pressure | ||||||
| 1013 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 10 | 12 | 11 | ||||
| Cloudy days | ||||||
| 5 | 6 | 7 | ||||
| Rainy days | ||||||
| 13 | 12 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May typically has worse weather conditions compared to April. It’s getting colder in May. From +28°C in the day, the average maximum temperature lowers to +24°C. Prepare for more rain. Average rainfall goes from 147 mm to 162 mm. Humidity rises from 80% to 83%. The average wind speed doesn’t change much during May, staying around 2 m/s. The good news is there are likely to be more sunny days in May, from 10 to 12.
June brings much the same weather, it remains ok.
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 Foz Do Iguacu is gradually increasing during May, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last May in Foz Do Iguacu?
Climate Change over Years
The climate in Foz Do Iguacu in May 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 May a good time to visit Foz Do Iguacu?
Can you sunbathe in Foz Do Iguacu in May?
Is Foz Do Iguacu rainy in May?
Is it sunny in Foz Do Iguacu in May?
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.