The best months to visit New Zealand are January and February. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in New Zealand: January 21°C / 57mm; February 21°C / 58mm; March 18°C / 61mm; April 16°C / 72mm; May 13°C / 72mm; June 13°C / 91mm; July 12°C / 86mm; August 13°C / 83mm; September 14°C / 78mm; October 15°C / 90mm; November 17°C / 75mm; December 19°C / 69mm.