The best months to visit Indonesia are July and August. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Indonesia: January 32°C / 299mm; February 33°C / 279mm; March 33°C / 244mm; April 32°C / 203mm; May 31°C / 124mm; June 30°C / 92mm; July 29°C / 69mm; August 30°C / 44mm; September 32°C / 60mm; October 34°C / 134mm; November 33°C / 222mm; December 31°C / 265mm.