Iguacu's weather is mild and pleasant during the spring months of September to November, with average temperatures ranging from 15-23°C. The summer season from December to February brings warmer days with highs reaching up to 41°C, although nights are still relatively cool. Autumn from March to May is characterized by a gradual decrease in temperature, with highs dropping to around 38°C, while winters from June to August are the coolest period, with average temperatures ranging from 10-20°C. The coldest month is July, with average lows often dipping below 10°C. Overall, Iguacu's climate is mild year-round, making it an ideal destination for travelers.