Queenstown still regularly hits 20°C during March, with average daily highs of 18.8°C (66°F) for the month. However, the nights do start to feel a bit cooler in March, with average lows of 7.2°C, giving an average temperature of 13°C for Queenstown in March.
Christchurch enjoys balmy late-summer temperatures above 20°C (68°F) in March, without the occasional searing heat that can arrive in February. The average temperature for Christchurch in March is 15.5°C, with pleasant daytime highs averaging 20.5°C and dropping to 10.4°C at night.
March is still a relatively warm time of the year in Nelson, with average monthly temperatures of 16.1°C, reaching average daily highs of 21°C and very mild lows of 16.1°C.
Dunedin has comfortable temperatures throughout March, averaging 13.7°C. Daytime temperatures still hover around 20°C regularly (with an average high of 17.3°C), while nights aren’t too chilly yet, with an average low temperature of 10.2°C for Dunedin in March.