The best months to visit Cambodia are December and January. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Cambodia: January 32°C / 15mm; February 34°C / 8mm; March 35°C / 39mm; April 37°C / 88mm; May 35°C / 154mm; June 33°C / 156mm; July 31°C / 156mm; August 32°C / 180mm; September 31°C / 247mm; October 31°C / 248mm; November 32°C / 77mm; December 30°C / 27mm.