The best months to visit Colombia are August and September. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Colombia: January 19°C / 57mm; February 19°C / 80mm; March 19°C / 132mm; April 19°C / 142mm; May 18°C / 96mm; June 18°C / 42mm; July 19°C / 38mm; August 19°C / 23mm; September 20°C / 32mm; October 19°C / 96mm; November 19°C / 120mm; December 19°C / 77mm.