The best months to visit Guyana 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 Guyana: January 31°C / 159mm; February 32°C / 111mm; March 33°C / 94mm; April 32°C / 131mm; May 30°C / 252mm; June 30°C / 308mm; July 30°C / 251mm; August 32°C / 166mm; September 33°C / 102mm; October 33°C / 111mm; November 33°C / 179mm; December 30°C / 207mm.