The best months to visit Bolivia are September and October. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Bolivia: January 19°C / 179mm; February 18°C / 146mm; March 19°C / 129mm; April 17°C / 75mm; May 12°C / 68mm; June 15°C / 58mm; July 11°C / 48mm; August 14°C / 46mm; September 19°C / 68mm; October 19°C / 88mm; November 19°C / 132mm; December 19°C / 175mm.