Summer in New Zealand officially runs from 1 December to 28 (or 29) February, so summer ends on the last day of February.

Quick Scoop: Seasons in New Zealand

  • Summer: December – February.
  • Autumn (fall): March – May.
  • Winter: June – August.
  • Spring: September – November.

That means:

  1. The end of summer in New Zealand is 28/29 February each year.
  1. Autumn begins on 1 March , even though in many places you can still get warm, “summery” weather into early autumn.

In practice, you may feel “summer vibes” stretching into March in many regions, but by calendar and climate guides, summer is defined as December–February.

TL;DR: When someone asks “when does summer end in New Zealand,” the standard answer is: at the end of February, with autumn starting on 1 March.

Information gathered from public forums or data available on the internet and portrayed here.