The best months to visit Brazil are August and June. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Brazil: January 31°C / 253mm; February 31°C / 187mm; March 30°C / 210mm; April 28°C / 103mm; May 26°C / 76mm; June 25°C / 47mm; July 25°C / 49mm; August 26°C / 44mm; September 27°C / 88mm; October 28°C / 115mm; November 28°C / 205mm; December 30°C / 226mm.