The best months to visit Bosnia and Herzegovina 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 Bosnia and Herzegovina: January 6°C / 81mm; February 12°C / 91mm; March 13°C / 90mm; April 18°C / 107mm; May 20°C / 106mm; June 26°C / 95mm; July 28°C / 85mm; August 30°C / 69mm; September 21°C / 87mm; October 18°C / 94mm; November 9°C / 103mm; December 6°C / 108mm.