The climate of Foz do Iguaçu is humid subtropical, with two distinctive seasons; one humid and hot in the summer and another, dry and cold, in the winter. The city's annual average temperature is 23.8 °C (74.8 °F), but can be as high as 40 °C (104 °F) in the summer (highest) or as low as -5 °C (23 °F) in the winter (lowest). The average in the summer is 26.5 °C (79.7 °F)and in the winter 15.4 °C (59.6 °F).