The best months to visit Belize are February and December. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Belize: January 28°C / 74mm; February 29°C / 42mm; March 34°C / 40mm; April 33°C / 42mm; May 36°C / 97mm; June 33°C / 170mm; July 30°C / 132mm; August 31°C / 130mm; September 33°C / 159mm; October 30°C / 185mm; November 30°C / 130mm; December 27°C / 84mm.