Tucurui's climate is warm and humid year-round, with temperatures consistently averaging around 27°C. The hottest months are May, June, July, August, September, with temperatures often reaching up to 39°C in May. Temperatures drop slightly during the winter months of December, January, February, March, April, but still remain mild, ranging from 21°C to 22°C. November is the coolest month, but only by a few degrees, with an average temperature of 29°C.