The best months to visit Brunei are August and February. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Brunei: January 31°C / 207mm; February 31°C / 156mm; March 32°C / 146mm; April 32°C / 182mm; May 31°C / 191mm; June 31°C / 184mm; July 31°C / 183mm; August 30°C / 178mm; September 31°C / 192mm; October 31°C / 248mm; November 32°C / 252mm; December 30°C / 246mm.