The best months to visit Guinea are February and March. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Guinea: January 30°C / 3mm; February 30°C / 2mm; March 30°C / 1mm; April 30°C / 6mm; May 30°C / 91mm; June 28°C / 334mm; July 27°C / 687mm; August 27°C / 837mm; September 27°C / 477mm; October 28°C / 190mm; November 29°C / 72mm; December 30°C / 11mm.